Back to Contents Page Dell™ XPS™ 720 H2C Owner's Manual Finding Information Troubleshooting Setting Up and Using Your Computer Removing and Installing Parts Optimizing for Greater Performance Appendix Dell™ QuickSet Glossary NOTE: A NOTE indicates important information that helps you make better use of your computer. NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
Back to Contents Page Appendix Dell™ XPS™ 720 Owner's Manual Specifications System Setup Clearing Forgotten Passwords Clearing CMOS Settings Cleaning Your Computer FCC Notices (U.S.
PCI 32-bit PCI (SLOT3, SLOT5, SLOT6) Connector three Connector size 124 pins Connector data width (maximum) 32 bits Bus speed 33 MHz PCI Express (SLOT1) NOTE: If a graphics card is installed in each of the PCI Express x16 card slots in the dual-graphics configuration, the PCI Express x1 card slot is not accessible for use. Connector one x1 Connector size 36 pins Connector data width (maximum) 1 PCI Express lane Bus throughput x1 slot bidirectional speed — 2.
amber light — Blinking amber indicates a problem with an installed device; solid amber indicates an internal power problem. Hard-drive access light green Network activity light (front panel) solid green indicates network connection Link integrity light (on integrated network adapter) green light — A good connection exists between a 10-Mbps network and the computer. orange light — A good connection exists between a 100-Mbps network and the computer.
Relative humidity 20% to 80% (noncondensing) Maximum vibration: Operating 0.25 G at 3 to 200 Hz at 0.5 octave/min Storage 0.5 G at 3 to 200 Hz at 1 octave/min Maximum shock: Operating bottom half-sine pulse with a change in velocity of 20 inches/sec (50.8 cm/sec) Storage 27-G faired square wave with a velocity change of 200 inches/sec (508 cm/sec) Altitude: Operating –15.2 to 3048 m (–50 to 10,000 ft) Storage –15.
NOTE: Depending on your computer and installed devices, the items listed in this section may not appear, or may not appear exactly as listed. System System Info Lists system information, such as the computer name, the BIOS version number and date, the system service tag, express service code and asset tag, and other system-specific information.
NOTE: PXE is required only if you are booting to an operating system located on another computer. If a boot routine is not available from the remote system, the computer attempts to boot from the next device listed in the boot sequence. Integrated Audio (On default) Enables or disables the onboard audio controller. l l USB Controller (On default) Off — Integrated audio is disabled. On — Integrated audio is enabled. Enables or disables the internal USB controller.
system parameters to tune system performance. These applications are not installed or supported by Dell. The default is Off. NOTE: To enable overclocking of other system components, you first need to enable the Performance Application Support option in BIOS and then download an application like NVIDIA nTune version 5.0 or higher. NOTE: Pressing returns your system to the factory defaults including RAID settings.
power is restored after an AC power loss. (Off default) l l l Auto Power On Off — The system stays off after AC power is restored. On — The system powers on after AC power is restored. Last — The system returns to the previous state after AC power is restored. Disables or selects when to automatically turn on the computer. (Off default) l l l Off — Do not use the Auto Power Time. Everyday — Turn the computer on every day at the time set in Auto Power Time.
Fastboot Enables or disables the option to speed up the boot process by skipping some compatibility tests. (On default) l l Numlock Key (On default) Enables or disables the numerical and mathematical features of the rightmost bank of keys on the keyboard. l l POST Hotkeys Off — Do not skip any steps in the boot process. On — Boot quickly. Off — Right keypad keys function as arrows. On — Right keypad keys function as numbers.
for the current boot only, and then press . For example, if you are booting to a USB memory key, highlight USB Flash Device and press . NOTE: To boot to a USB device, the device must be bootable. To make sure that your device is bootable, check the device documentation. Changing Boot Sequence for Future Boots 1. Enter system setup (see Entering System Setup). 2. Use the arrow keys to highlight the Boot Sequence menu option and press to access the menu.
7. Disconnect the keyboard and mouse, then disconnect the computer and monitor from their electrical outlets. 8. Press the power button on the computer to ground the system board. 9. Open the computer cover (see Removing the Computer Cover). NOTICE: The password jumper plug must be reinstalled on the password jumper pins in order to enable the password feature. 10.
l Wipe the keyboard, computer, and plastic part of the monitor with a soft cleaning cloth moistened with water. Do not soak the cloth or let water drip inside your computer or keyboard. Mouse If your screen cursor skips or moves abnormally, clean the mouse. To clean a non-optical mouse: 1. Turn the retainer ring on the underside of your mouse counterclockwise, and then remove the ball. 2. Wipe the ball with a clean, lint-free cloth. 3. Blow carefully into the ball cage to dislodge dust and lint. 4.
and can radiate radio frequency energy and, if not installed and used in accordance with the manufacturer's instruction manual, may cause harmful interference with radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case you will be required to correct the interference at your own expense. Class B This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules.
Argentina (Buenos Aires) E-mail for Desktops and Portables E-mail for Servers and EMC® Storage Products International Access Code: 00 la-techsupport@dell.com la_enterprise@dell.com Customer Service toll-free: 0-800-444-0730 Country Code: 54 Technical Support – Dell PowerApp™, Dell PowerEdge™, Dell PowerConnect™, and Dell PowerVault™ toll-free: 0-800-222-0154 City Code: 11 Technical Support Services toll-free: 0-800-444-0724 Sales 0-810-444-3355 www.dell.com.
604 633 3101 Brunei Customer Service (Penang, Malaysia) or toll-free: 801 1012 Country Code: 673 604 633 3101 Transaction Sales (Penang, Malaysia) or toll-free: 801 1012 Online Order Status Online Support AutoTech (automated Hardware and Warranty Support) www.dell.ca/ostatus support.ca.dell.
Technical Support, Customer Service, Sales 0800-012-0231 support.euro.dell.com Online Support czech_dell@dell.com Czech Republic (Prague) Technical Support 22537 2727 International Access Code: 00 Customer Service 22537 2707 Country Code: 420 Fax 22537 2714 Technical Fax 22537 2728 Switchboard Online Support Denmark (Copenhagen) International Access Code: 00 Country Code: 45 22537 2711 support.euro.dell.
Germany (Frankfurt) International Access Code: 00 Country Code: 49 City Code: 69 Technical Support for XPS computers only 069 9792 7222 Technical Support 069 9792-7200 Home/Small Business Customer Service 0180-5-224400 Global Segment Customer Service 069 9792-7320 Preferred Accounts Customer Service 069 9792-7320 Large Accounts Customer Service 069 9792-7320 Public Accounts Customer Service 069 9792-7320 Switchboard Online Support Greece International Access Code: 00 Country Code: 30 069 979
toll-free: 1800-4252067 Sales Large Corporate Accounts Home and Small Business 1600 33 8044 1600 33 8046 support.euro.dell.com Online Support dell_direct_support@dell.
Public Sales – government agencies, educational institutions, and medical institutions 044-556-5963 Global Segment Japan 044-556-3469 Individual User 044-556-1657 Individual User Online Sales 044-556-2203 Individual User Real Site Sales 044-556-4649 Switchboard Online Support Korea (Seoul) International Access Code: 001 Country Code: 82 City Code: 2 Technical Support for XPS computers only toll-free: 080-999-0283 Technical Support, Customer Service toll-free: 080-200-3800 Technical Support –
City Code: 20 Relational Sales 020 674 50 00 Home/Small Business Sales Fax 020 674 47 75 Relational Sales Fax 020 674 47 50 Switchboard 020 674 50 00 Switchboard Fax New Zealand Online Support support.ap.dell.com/contactus International Access Code: 00 Technical Support for XPS computers only Country Code: 64 020 674 47 50 support.ap.dell.com Technical Support, Customer Service, Sales toll-free: 0800 335 540 0800 441 567 www.dell.com/ni Online Support Nicaragua la-techsupport@dell.
Online Support Singapore (Singapore) Technical Support – XPS computers only Technical Support – Dimension, Inspiron, and Electronics and International Access Code: 005 Accessories Country Code: 65 Technical Support – OptiPlex, Latitude, and Dell Precision Technical Support – PowerApp, PowerEdge, PowerConnect, and PowerVault support.ap.dell.
Taiwan International Access Code: 002 Technical Support – XPS computers only toll-free: 0080 186 3085 Technical Support – OptiPlex, Latitude, Inspiron, Dimension, and Electronics and Accessories toll-free: 0080 186 1011 Technical Support – Servers and Storage Country Code: 886 Customer Service toll-free: 0080 160 1250 (option 5) Transaction Sales toll-free: 0080 165 1228 Corporate Sales toll-free: 0080 165 1227 Online Support Thailand toll-free: 0080 160 1256 support.ap.dell.
U.S.A.
Back to Contents Page Finding Information Dell™ XPS™ 720 Owner's Manual NOTE: Some features or media may be optional and may not ship with your computer. Some features or media may not be available in certain countries. NOTE: Additional information may ship with your computer.
l l l l l l l l l Solutions — Troubleshooting hints and tips, articles from technicians, online courses, and frequently asked questions Community — Online discussion with other Dell customers Upgrades — Upgrade information for components, such as the memory, hard drive, and operating system Customer Care — Contact information, service call and order status, and warranty and repair information Service and Support — Service call status, support history, service contract, and online discussions with support
Back to Contents Page Glossary Dell™ XPS™ 720 Owner's Manual Terms in this Glossary are provided for informational purposes only and may or may not describe features included with your particular computer. A AC — alternating current — The form of electricity that powers your computer when you plug the AC adapter power cable in to an electrical outlet.
CD-RW — CD rewritable — A rewritable version of a CD. Data can be written to a CD-RW disc, and then erased and written over (rewritten). CD-RW drive — A drive that can read CDs and write to CD-RW (rewritable CDs) and CD-R (recordable CDs) discs. You can write to CD-RW discs multiple times, but you can write to CD-R discs only once. CD-RW/DVD drive — A drive, sometimes referred to as a combo drive, that can read CDs and DVDs and write to CD-RW (rewritable CDs) and CD-R (recordable CDs) discs.
EIDE — enhanced integrated device electronics — An improved version of the IDE interface for hard drives and CD drives. EMI — electromagnetic interference — Electrical interference caused by electromagnetic radiation. ENERGY STAR® — Environmental Protection Agency requirements that decrease the overall consumption of electricity. EPP — enhanced parallel port — A parallel connector design that provides bidirectional data transmission. ESD — electrostatic discharge — A rapid discharge of static electricity.
megahertz (MHz), gigahertz (GHz), or terahertz (THz). I IC — integrated circuit — A semiconductor wafer, or chip, on which thousands or millions of tiny electronic components are fabricated for use in computer, audio, and video equipment. IDE — integrated device electronics — An interface for mass storage devices in which the controller is integrated into the hard drive or CD drive. IEEE 1394 — Institute of Electrical and Electronics Engineers, Inc.
memory module — A small circuit board containing memory chips, which connects to the system board. MHz — megahertz — A measure of frequency that equals 1 million cycles per second. The speeds for computer processors, buses, and interfaces are often measured in MHz. Mini PCI — A standard for integrated peripheral devices with an emphasis on communications such as modems and NICs. A Mini PCI card is a small external card that is functionally equivalent to a standard PCI expansion card.
R RAID — redundant array of independent disks — A method of providing data redundancy. Some common implementations of RAID include RAID 0, RAID 1, RAID 5, RAID 10, and RAID 50. RAM — random-access memory — The primary temporary storage area for program instructions and data. Any information stored in RAM is lost when you shut down your computer. readme file — A text file included with a software package or hardware product.
S-video TV-out — A connector used to attach a TV or digital audio device to the computer. SXGA — super-extended graphics array — A video standard for video cards and controllers that supports resolutions up to 1280 x 1024. SXGA+ — super-extended graphics array plus — A video standard for video cards and controllers that supports resolutions up to 1400 x 1050. system board — The main circuit board in your computer. Also known as the motherboard.
power for 1 hour or 33 W for 2 hours. wallpaper — The background pattern or picture on the Windows desktop. Change your wallpaper through the Windows Control Panel. You can also scan in your favorite picture and make it wallpaper. WLAN — wireless local area network. A series of interconnected computers that communicate with each other over the air waves using access points or wireless routers to provide Internet access. write-protected — Files or media that cannot be changed.
Back to Contents Page Removing and Installing Parts Dell™ XPS™ 720 Owner's Manual Before You Begin Liquid Cooling Assembly Removing the Computer Cover Processor Memory Fans Cards System Board Drives Power Supply Hard Drive Front I/O Panel Drive Panel Battery Floppy Drive Removing the Computer Stand Media Card Reader Replacing the Computer Cover Optical Drive Before You Begin This chapter provides procedures for removing and installing the components in your computer.
l In Windows Vista, click Start , click the arrow in the lower-right corner of the Start menu as shown below, and then click Shut Down. The computer turns off after the operating system shutdown process is complete. 3. Ensure that the computer and all attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut down your operating system, press and hold the power button for about 4 seconds to turn them off.
1 optical drive bays (4) 2 floppy drive/media card reader 4 card fan 5 liquid cooling assembly 3 hard drive bays (4) System Board Components 1 white memory module connectors (DIMM_1-2) 2 black memory module connectors (DIMM_34) 3 hard drive fan connector (FAN_HDD) 4 IDE drive connector (IDE) 5 front I/O panel connector (FRONTPANEL) 6 back LED connector 7 power button (PWR_BT) 8 FlexBay connector (INT_USB) 9 main power connector (POWER1) 10 SATA connectors (SATA0-5) 11 front USB
slot (SLOT4) 19 PCI-Express x16 card slot (SLOT7) 20 RTC reset jumper (RTCRST) 21 battery socket (BATTERY) 22 password jumper (PASSWORD) 23 power connector (POWER2) 24 floppy drive (DSKT) 25 card cage fan connector (FAN_CAGE) 26 liquid cooling assembly (TEC_PUMP) 27 processor (CPU) 28 processor fan connector (FAN1_CPU) Memory You can increase your computer memory by installing memory modules on the system board. Your computer supports DDR2 memory.
connectors 3 and 4. NOTE: Memory purchased from Dell is covered under your computer warranty. Addressing Memory Configurations If you are using a 32-bit operating system such as Microsoft® Windows Vista™, your computer will support a maximum of 4 GB of memory. If you are using a 64-bit operating system, your computer will support a maximum of 8 GB (2-GB DIMMs in each of the four slots) of memory.
6. Replace the computer cover (see Replacing the Computer Cover). NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer. 7. Connect your computer and devices to electrical outlets, and turn them on. 8. When the message appears stating that memory size has changed, press to continue. 9. Log on to your computer. 10. Right-click the My Computer icon on your Windows desktop and click Properties. 11. Click the General tab. 12.
1 PCI card 2 PCI Express x16 card 4 PCI Express x1 card slot 5 PCI Express x1 card 3 PCI Express x16 card slot Removing PCI and PCI Express Cards NOTICE: To avoid electrostatic discharge and damage to internal components, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface on the computer chassis.
NOTICE: Before rotating the card retainer back into place, ensure that the tops of all cards and filler brackets are flush with the alignment bar and the notch in the top of each card or filler bracket fits around the alignment guide. NOTICE: Do not route card cables over or behind the cards. Cables routed over the cards can prevent the computer cover from closing properly or cause damage to the equipment. 8.
1 PCI Express x16 card 2 securing tab 3 PCI Express x16 card slot NOTICE: Ensure that you release the securing tab to seat the card. If the card is not installed correctly, you may damage the system board. 8. Gently pull the securing tab (if present) and place the card in the connector. Press down firmly and ensure that the card is fully seated in the slot.
1 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3. If present, press the tab on the card retention device that lays over the installed cards and rotate it upwards to gain full access to the card. 4. Gently securing both graphics cards with one hand, remove the graphics card bridge (if present) with your other hand by pulling it up and away from the computer. Set it aside.
1 PCI Express x16 card 8. 2 securing tab 3 PCI Express x16 card slot Install a filler bracket in the empty card-slot opening. If you are replacing the card, see Installing a PCI Express Graphics Card in a Dual Configuration. NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer. The brackets also keep dust and dirt out of your computer.
1 release tab 4 fan bracket 5. 2 card retainer 3 alignment guide Remove the filler bracket or existing graphics card (see Removing a PCI Express Graphics Card from a Dual Configuration) to create a card-slot opening. NOTE: If you are upgrading to a dual graphics card configuration and have a card installed in the PCI Express x1 card slot, remove the card (see Removing PCI and PCI Express Cards). 6. Prepare the card for installation.
1 graphics card bridge (not present on some dual graphics card configurations) 2 power connectors (2) 3 dual-PCI Express graphics cards NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug the cable into the computer. 12. If present, lower the card retention device that lays over the installed cards and snap it into place. 13.
NOTE: The 5.25-inch Media Card Reader/floppy drive carrier is not interchangeable with the hard drive carrier. 1 optical drive bays (4) 2 floppy drive/media card reader 3 hard-drive bays (4) About Serial ATA Drives Your computer supports up to four serial ATA hard drives and two serial ATA optical drives.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. NOTICE: If you are replacing a hard drive that contains data that you want to keep, back up your files before you begin this procedure. 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3.
Installing a Hard Drive CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3. Remove the existing hard drive, if applicable (see Removing a Hard Drive). NOTE: If a hard drive bracket is installed inside of the hard drive bay, remove the bracket before you install the new hard drive. 4.
1 power cable 9. 2 data cable Replace the computer cover (see Replacing the Computer Cover). NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer. 10. Connect the computer and devices to electrical outlets, and turn them on. See the documentation that came with the drive for instructions on installing any software required for drive operation.
5. Set the drive panel aside in a secure location. Replacing the Drive Panel 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3. Align the drive panel tabs with the side-door hinges. 1 drive release latch 2 drive panel 3 drive panel tabs 4. Rotate the drive panel toward the computer until it snaps into place on the drive panel. 5. Replace the computer cover (see Replacing the Computer Cover).
1 power cable 5. 1 2 floppy drive data cable Slide the drive release latch towards the base of the computer to release the shoulder screw, and then slide the drive out of the drive bay. drive release latch 2 floppy drive 6. Replace the drive panel (see Replacing the Drive Panel). 7. Replace the computer cover (see Replacing the Computer Cover). NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer. 8.
5. 1 If no screws are attached to the new floppy drive, check the inside of the drive panel for shoulder screws. If screws are present, attach the screws to the new drive. floppy drive 6. 1 2 shoulder screws (4) Slide the floppy drive into the drive bay until it clicks into place. drive release latch 2 floppy drive 7. Connect the power and data cables to the back of the floppy drive. 8.
2. Remove the computer cover (see Removing the Computer Cover). 3. Remove the drive panel (see Removing the Drive Panel). 4. Disconnect the power and data cables from the back of the Media Card Reader. 1 media card reader power cable 5. 1 2 system board connector Slide the drive release latch towards the base of the computer to release the shoulder screw, and then slide the media card reader out of the drive bay. drive release latch 2 media card reader 6.
3. Remove the drive panel (see Removing the Drive Panel). 4. Remove the existing media card reader, if applicable (see Removing a Media Card Reader). 5. If no screws are attached to the Media Card Reader, check the inside of the drive panel for shoulder screws. If screws are present, attach the screws to the new card reader. 1 media card reader 6. 1 2 shoulder screws (4) Slide the Media Card Reader into the drive bay until it clicks into place. drive release latch 2 media card reader 7.
Removing an Optical Drive 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3. Remove the drive panel (see Removing the Drive Panel). 4. Disconnect the power and data cables from the back of the drive. NOTE: If you are uninstalling your only optical drive and will not replace it at this time, disconnect the data cable from the system board and set it aside. 1 data cable 5.
Installing an Optical Drive 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3. Remove the drive panel (see Removing the Drive Panel). 4. Remove the existing optical drive, if applicable (see Removing an Optical Drive). 5. Prepare the optical drive for installation and check the documentation that accompanied the drive to verify that the drive is configured for your computer.
1 power cable 9. 2 data cable Check all cable connections and fold cables out of the way to avoid blocking airflow between the fan and cooling vents. 10. Replace the drive panel (see Replacing the Drive Panel). 11. Replace the computer cover (see Replacing the Computer Cover). NOTICE: To connect a network cable, first plug the cable in to the network port or device and then plug it in to the computer. 12. Connect your computer and devices to their electrical outlets, and turn them on.
3. Remove the drive panel (see Removing the Drive Panel). 4. Slide the drive release latch towards the base of the computer to release the shoulder screw(s) on the optical drive(s), then slide the optical drive(s) forward, out of the way. NOTE: It is not necessary to disconnect the optical drive cables unless you intend to fully remove the optical drive(s) from the computer. For information on how to remove an optical drive, see Removing an Optical Drive. 1 drive release latch 2 optical drive 5.
1 liquid cooling assembly 2 captive screws (6) 3 screw (loose) Installing the Liquid Cooling Assembly 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). NOTICE: Ensure that adequate thermal grease is applied to the top of the processor. Thermal grease is critical for ensuring adequate thermal bonding, which is a requirement for optimal processor operation. 3. Apply thermal grease to the top of the processor as needed. 4.
1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3. Disconnect the power cables from the POWER1 and POWER2 connectors (see System Board Components) on the system board. 4. Remove the liquid cooling assembly (see Removing the Liquid Cooling Assembly). 5. Push down and out on the socket release lever. 6. Lift the socket release lever and open the processor cover. 1 processor cover 4 socket release lever 7.
4 socket release lever 5 socket pin-1 indicator NOTICE: Socket pins are delicate. To avoid damage, ensure that the processor is aligned properly with the socket, and do not use excessive force when you install the processor. Be careful not to touch or bend the pins on the system board. 4. Set the processor lightly in the socket and ensure that the processor is level in the socket. When the processor is positioned correctly, press it with minimal pressure to seat it. 5.
1 cage housing 6. 1 2 fan cage 3 tab (2) In succession, carefully pull on each corner of the fan to detach the rubber grommets securing the fan to the fan cage. card fan 2 rubber grommet (4) 3 fan cage Installing the Card Fan NOTICE: Ensure the fan cable is correctly routed through the opening in the lower-right corner of the fan cage. 1.
6. Connect your computer and devices to electrical outlets, and then turn them on. Removing the Optional Hard Drive Fan 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3. Remove all installed memory modules (see Removing Memory). 4. Disconnect the fan cable from the FAN_HDD connector on the system board (see System Board Components). 5.
2. Remove the computer cover (see Removing the Computer Cover). 3. Disconnect the fan cable from the FAN_CAGE connector on the system board (see System Board Components). 4. Remove any full-length expansion cards (see Removing PCI and PCI Express Cards). 5. Remove the two screws securing the card fan assembly, then remove the assembly and set it aside. 1 screw (2) 2 card fan assembly 3 fan connector 6. Remove any additional components that may restrict access to the system board. 7.
NOTICE: The system board and metal tray are connected and are installed as one piece. NOTICE: If you are replacing the system board, visually compare the replacement system board to the existing system board to make sure that you have the correct part. NOTE: Some components and connectors on replacement system boards may be in different locations than corresponding connectors on the existing system board. NOTE: Jumper settings on replacement system boards are preset by the factory. 1.
DC Power Connector P1 1-KW Power Supply 750-KW Power Supply Pin Number Signal name 18-AWG Wire Color Signal name 18-AWG Wire Color 1 +3.3 VDC Orange +3.3 VDC Orange 2 +3.3 VDC/SE Orange +3.
23 +5 VDC Red +5 VDC Red 24 COM Black COM Black DC Power Connector P2 1-KW Power Supply 750-KW Power Supply Pin Number Signal name 18-AWG Wire Color Signal name 18-AWG Wire Color 1 +12 VC DC Blue/White +12 VC DC Blue/White 2 +12 VC DC Blue/White +12 VC DC Blue/White 3 COM Black COM Black 4 COM Black COM Black 5 +12 VA DC/SE Yellow +12 VA DC/SE Yellow 6 +12 VA DC Yellow +12 VA DC Yellow 7 COM Black COM Black 8 COM Black COM Black 9 +12 VB DC/SE Whit
DC Power Connector P4 (Graphics Card) 1-KW Power Supply 750-KW Power Supply Pin Number Signal name 18-AWG Wire Color Signal name 18-AWG Wire Color 1 +12 VE DC Blue/Yellow +12 VC DC Blue/White 2 +12 VE DC Blue/Yellow +12 VC DC Blue/White 3 +12 VE DC Blue/Yellow +12 VC DC Blue/White 4 COM Black COM Black 5 COM Black COM Black 6 COM Black COM Black NOTE: The P3 and P4 connectors are intended for use with the PCI Express graphics cards whose power requirements exceed 75 wat
1-KW Power Supply 750-KW Power Supply Pin Number Signal name 18-AWG Wire Color Signal name 18-AWG Wire Color 1 +3.3 VDC Orange +3.3 VDC Orange 2 COM Black COM Black 3 +5 VDC Red +5 VDC Red 4 COM Black COM Black 5 +12 VE DC Blue/Yellow +12 VB DC White DC Power Connectors P10-P13 (HDD2 and HDD5) 1-KW Power Supply 750-KW Power Supply Pin Number Signal name 18-AWG Wire Color Signal name 18-AWG Wire Color 1 +3.3 VDC Orange +3.
Pin Number Signal Name 18-AWG Wire Color 1 +12 VB DC White 2 +12 VB DC White 3 +12 VB DC White 4 COM Black 5 COM Black 6 COM Black DC Power Connector P16 (Graphics Card – 1-KW PSU Only) Pin Number Signal Name 18-AWG Wire Color 1 +12 VC DC Blue/White 2 +12 VC DC Blue/White 3 +12 VC DC Blue/White 4 COM Black 5 COM Black 6 COM Black NOTE: The P15 and P16 connectors are intended for use with the PCI Express graphics cards whose power requirements exceed 75 watts.
1 screws (4) 2 hard-drive bays 8. Remove the four screws that attach the power supply to the back of the computer chassis. 9. Gather the power supply bundles that stem from the power supply, for easy removal. 1 power supply screws (4) 10. Slide the power supply towards the front of the computer to free it from the securing tabs on the computer chassis. 11.
1. Slide the power supply into place, ensuring that the tabs on the rear wall of the computer chassis latch into place. 2. Replace the four screws that secure the power supply to the back of the computer chassis. 3. Replace the two hard drive bays. 4. Replace all hard drives installed in the interior hard drive bays (see Installing a Hard Drive). 5. Replace the optional hard drive fan, if applicable (see Installing the Optional Hard Drive Fan). 6.
2. Remove the computer cover (see Removing the Computer Cover). 3. Remove any full-length expansion cards (see Removing PCI and PCI Express Cards). NOTICE: Carefully note the routing of each cable before you disconnect it, so that you are sure to re-route cables correctly. An incorrectly routed or a disconnected cable could lead to computer problems. 4. Remove the processor airflow shroud (see Removing the Liquid Cooling Assembly). 5. Disconnect the front fan and the card fan from the system board.
Battery CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. Replacing the Battery A coin-cell battery maintains computer configuration, date, and time information. The battery can last several years. If you have to repeatedly reset time and date information after turning on the computer, replace the battery. CAUTION: A new battery can explode if it is incorrectly installed.
2. Loosen the captive screw securing the stand to the base of the computer. 3. Gently slide the stand back, towards the rear of the computer, then pull the stand away from the computer to remove it. 1 computer stand 2 captive screw Replacing the Computer Cover CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: Your computer is heavy and can be difficult to maneuver.
1 computer cover 2 cover hinge tabs 3 hinge slots 5. Carefully, lift the rear of the computer and slide the stabilizing feet outward into the open position. 6. With the help of an assistant, carefully set the computer upright. NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer. 7. Connect your computer and devices to electrical outlets, and turn them on.
Back to Contents Page Optimizing for Greater Performance Dell™ XPS™ 720 Owner's Manual Understanding Dual-Graphics Technology Understanding CPU Overclocking Understanding Dual-Graphics Technology With dual-graphics technology, an optional second PCI Express graphics card will significantly increase graphics performance on your computer. Benefits of this technology can be seen in the improved portrayal of the 3-D graphics used in gaming and design applications.
Back to Contents Page Dell™ QuickSet Dell™ XPS™ 720 Owner's Manual NOTE: This feature may not be available on your computer. Dell™ QuickSet allows you to select and adjust LED light effects, also known as LightFX™. You can start QuickSet by either clicking, double-clicking, or right-clicking the QuickSet icon in the Microsoft® Windows® taskbar. The taskbar is located in the lower-right corner of your screen. For more information about QuickSet, right-click the QuickSet icon and select Help.
Back to Contents Page Setting Up and Using Your Computer Dell™ XPS™ 720 Owner's Manual Front and Back View of the Computer Using a Media Card Reader (Optional) Attaching the Computer Stand Network Setup Wizard Installing Your Computer in an Enclosure Transferring Information to a New Computer Connecting Monitors Power Management Options in Windows XP About Your RAID Configuration Power Management Options in Windows Vista Using Multimedia Front and Back View of the Computer Front View 1 front
setup (see System Setup). 10 power button Press to turn on the computer. NOTICE: To avoid losing data, do not use the power button to turn off the computer. Instead, perform an operating system shutdown. NOTE: The power button can also be used to wake the system or to place it into a power-saving state (see Power Management Options in Windows XP). 11 power light The power light illuminates and blinks or remains solid to indicate different states: ¡ ¡ ¡ ¡ ¡ No light — The computer is turned off.
1 power connector Insert the power cable. The appearance of this connector may differ from what is pictured. 2 back panel LEDs (2) Multi-colored lights provide illumination for the I/O panel on the back of the computer. NOTE: The color of the back panel LEDs can be adjusted in system setup (see System Setup). 3 back I/O connectors Plug USB and other devices into the appropriate connectors (see Back I/O Connectors). 4 card slots Access connectors for any installed PCI or PCI Express cards.
connectors on the card and on the back of the computer when setting up multiple network connections (such as a separate intraand extranet). NOTE: Dell recommends that you use Category 5 wiring and connectors for your network. If you must use Category 3 wiring, force the network speed to 10 Mbps to ensure reliable operation. 3 network activity light Flashes a yellow light when the computer is transmitting or receiving network data.
3. Insert the six alignment tabs into the corresponding slots on the base of the computer, then slide the stand forward until all six tabs catch in the slots. 4. Ensure that the screw hole on the stand is aligned with the screw hole on the base of the computer. 5. Insert the captive screw into the screw hole, then tighten the screw to secure the stand to the base of the computer. 1 captive screw 4 slots (6) 2 stabilizing feet (closed) 3 computer stand 6.
l Do not install your computer in an enclosure that does not allow airflow. Restricting the airflow impacts your computer's performance, possibly causing it to overheat. Connecting Monitors CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To reduce the risk of fire, electric shock, or injury, do not overload an electrical outlet, power strip, or convenience receptacle.
1 DVI (white) connector 2 TV-OUT connector 3 VGA (blue) connector Connecting a Monitor (Without an Adapter) CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide. NOTE: If your monitor has a VGA connector and your computer does not have a VGA port, follow the instructions in Connecting a Monitor (With an Adapter). 1. Save and close all open files and exit all open programs. 2.
1 3. Ensure that the computer and all attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut down your operating system, press and hold the power button for about 4 seconds to turn them off. 4. Connect the DVI-to-VGA adapter to the VGA connector on your monitor, and then connect the other end of the adapter to the (white) DVI port on the back of the computer.
To connect a monitor with a DVI connector, use the (white) DVI port on the primary graphics card. To connect a monitor with a VGA connector, use the (blue) VGA port on the primary graphics card. Connecting Two or More Monitors CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide. NOTE: In order to connect and use two or more monitors in a dual graphics card configuration, multi-GPU technology must be disabled.
4. Disconnect the computer and all attached devices from their electrical outlets. 5. Connect one end of the S-video cable to the TV-OUT connector on the back of the computer. 6. Connect the other end of the S-video cable to the S-video input connector on your TV. 7. Connect one monitor, as needed, with a DVI or VGA connector as described in Connecting Monitors.
Another advantage of a RAID level 0 configuration is that it utilizes the full storage capacities of the drives. For example, two 120-GB hard drives combine to provide 240 GB of hard drive space on which to store data. NOTE: In a RAID level 0 configuration, the size of the configuration is equal to the size of the smallest drive multiplied by the number of drives in the configuration.
If a drive failure occurs, subsequent read and write operations are directed to the other surviving drives. A replacement drive can then be rebuilt using the data from the surviving drives. Also, because data is duplicated on the primary and additional drives, four 120-GB RAID level 1 drives collectively have a maximum of 360-GB on which to store data.
To create a RAID 1 configuration, use the arrow keys to select Mirroring. To create a RAID 0+1 configuration, use the arrow keys to select Stripe Mirroring. To create a RAID 5 configuration, use the arrow keys to select RAID 5. 5. Press to navigate to the Free Disks field. 6. Use the up- and down-arrow keys to select a hard drive to include in the RAID array and then use the right-arrow key to move the selected drive from the Free Disks field to the Array Disks field.
The Free Disk Selection window appears. NOTE: Only RAID-enabled hard drives are listed as free disks. 8. Click to select the drives that will make up the RAID configuration, click Next, and then click Next again. NOTE: Your computer supports a maximum of two drives per RAID 1 array and four per RAID 0 array. The Clearing System Data window appears. NOTICE: The Clear System Data option deletes all data on the selected drive. 9. 10. Click Next. Click Finish to create the RAID configuration.
6. Click Next. NOTICE: You will lose all data on the selected drives in the next step. 7. 8. Under Free Disk Selection, select the hard drive(s) you want to include in the (migrated) array by clicking the checkbox beside it. Click Finish. The MediaShield RAID management utility window appears and displays the status of the upgrade/migration process along with any other installed hard drives.
NOTE: Ensure that you follow all copyright laws when you create media. A CD player includes the following basic buttons: Play. Move backward within the current track. Pause. Move forward within the current track. Stop. Go to the previous track. Eject. Go to the next track. A DVD player includes the following basic buttons: Stop. Restart the current chapter. Play. Fast forward. Pause. Fast reverse. Advance a single frame while in pause mode. Go to the next title or chapter.
continue. The computer reads your source disc and copies the data to a temporary folder on your computer hard drive. When prompted, insert a blank disc into the drive and click OK. l If you have two optical drives, select the drive into which you have inserted your source disc and click the Copy Disc button to continue. The computer copies the data from the source disc to the blank disc. Once you have finished copying the source disc, the disc that you have created automatically ejects.
l l l Music MP3 files can be played only on MP3 players or on computers that have MP3 software installed. Use a blank CD-RW to practice CD recording until you are familiar with CD recording techniques. If you make a mistake, you can erase the data on the CD-RW and try again. You can also use blank CD-RWs to test music file projects before you record the project permanently to a blank CD-R. You cannot create audio DVDs with Roxio Creator.
Network Setup Wizard The Microsoft Windows operating system provides a Network Setup Wizard to guide you through the process of sharing files, printers, or an Internet connection between computers in a home or small office. Windows XP: 1. Click Start, point to All Programs® Accessories® Communications, and then click Network Setup Wizard. 2. On the welcome screen, click Next. 3. Click Checklist for creating a network.
After the information has been copied, the Completing the Collection Phase screen appears. 8. Click Finish. To transfer data to the new computer: 1. On the Now go to your old computer screen on the new computer, click Next. 2. On the Where are the files and settings? screen, select the method you chose for transferring your files and settings, and then click Next. The wizard reads the collected files and settings and applies them to your new computer.
3. Under or pick a Control Panel icon, click Power Options. 4. Define your hibernate settings on the Power Schemes tab, Advanced tab, and Hibernate tab. To exit from hibernate mode, press the power button. The computer may take a short time to exit from hibernate mode. Because the keyboard and mouse do not function in hibernate mode, pressing a key on the keyboard or moving the mouse does not bring the computer out of hibernation.
3. In the Performance and maintenance window, click Conserving power on your computer. Power Management Options in Windows Vista The Microsoft Vista power management features can reduce the amount of electricity your computer uses when it is on and you are not using it. You can reduce power to just the monitor or the hard drive, or you can use sleep mode or hibernate mode to reduce power to the entire computer.
Back to Contents Page Troubleshooting Dell™ XPS™ 720 Owner's Manual Solving Problems System Messages Power Lights Dell Diagnostics Diagnostic Lights Drivers Beep Codes Restoring Your Operating System Solving Problems Follow these tips when you troubleshoot your computer: l If you added or removed a part before the problem started, review the installation procedures and ensure that the part is correctly installed.
Run the Hardware Troubleshooter — See Troubleshooting Software and Hardware Problems. Run the Dell Diagnostics — See Dell Diagnostics. Optical drive problems NOTE: High-speed optical drive vibration is normal and may cause noise, which does not indicate a defect in the drive or the media. NOTE: Because of different regions worldwide and different disc formats, not all DVD titles work in all DVD drives.
NOTE: Do not plug a telephone cable into the network adapter connector (see Back I/O Connectors). Check the Microsoft Outlook® Express security settings — If you cannot open your e-mail attachments: 1. 2. In Outlook Express, click Tools® Options® Security. Click Do not allow attachments to remove the checkmark, as needed.
1. 2. 3. 4. Click Start ® Control Panel® Programs® Programs and Features. Select the program you want to remove. Click Uninstall. See the program documentation for installation instructions. drive letter :\ is not accessible. The device is not ready — The drive cannot read the disk. Insert a disk into the drive and try again. Insert bootable media — Insert a bootable floppy disk, CD, or DVD. Non-system disk error — Remove the floppy disk from the floppy drive and restart your computer.
Test the keyboard — Connect a properly working keyboard to the computer, then try using the keyboard. Run the Hardware Troubleshooter — See Troubleshooting Software and Hardware Problems. Lockups and Software Problems CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. The computer does not start up Check the diagnostic lights — See Diagnostic Lights.
3. Follow the instructions on the screen. A solid blue screen appears Turn the computer off — If you are unable to get a response by pressing a key on your keyboard or moving your mouse, press and hold the power button for at least 8 to 10 seconds (until the computer turns off), and then restart your computer.
Check the mouse settings — Windows XP 1. 2. Click Start® Control Panel® Mouse. Adjust the settings as needed. Windows Vista: 1. 2. Click Start ® Control Panel® Hardware and Sound® Mouse. Adjust the settings as needed. Reinstall the mouse driver — See Drivers. Run the Hardware Troubleshooter — See Troubleshooting Software and Hardware Problems. Network Problems CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
l l l Ensure that the processor power cable is securely connected to the system board power connector (POWER2) (see System Board Components). Remove and then reinstall all memory modules (see Memory). Remove and then reinstall any expansion cards, including graphics cards (see Removing PCI and PCI Express Cards).
Verify that the scanner is recognized by Microsoft Windows — Windows XP: 1. 2. Click Start® Control Panel® Printers and Other Hardware® Scanners and Cameras. If your scanner is listed, Windows recognizes the scanner. Windows Vista: 1. 2. Click Start ® Control Panel® Hardware and Sound® Scanners and Cameras. If the scanner is listed, Windows recognizes the scanner. Reinstall the scanner driver — See the scanner documentation for instructions.
Video and Monitor Problems CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. NOTICE: If your computer came with a PCI graphics card installed, removal of the card is not necessary when installing additional graphics cards; however, the card is required for troubleshooting purposes. If you remove the card, store it in a safe and secure location. For information about your graphics card, go to support.dell.com.
Check the monitor settings — See the monitor documentation for instructions on adjusting the contrast and brightness, demagnetizing (degaussing) the monitor, and running the monitor self-test. Power Lights CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
A possible graphics card failure has occurred. l l l Reseat any installed graphics cards (see Cards). If available, install a working graphics card into your computer. If the problem persists, contact Dell (see Contacting Dell). A possible floppy drive or hard drive failure has occurred. Reseat all power and data cables. A possible USB failure has occurred. Reinstall all USB devices and check all cable connections. No memory modules are detected.
3-2-4 Keyboard Controller Test failure 3-3-1 NVRAM power loss 3-3-2 Invalid NVRAM configuration 3-3-4 Video Memory Test failure 3-4-1 Screen initialization failure 3-4-2 Screen retrace failure 3-4-3 Search for video ROM failure 4-2-1 No timer tick 4-2-2 Shutdown failure 4-2-3 Gate A20 failure 4-2-4 Unexpected interrupt in protected mode 4-3-1 Memory failure above address 0FFFFh 4-3-3 Timer-chip counter 2 failure 4-3-4 Time-of-day clock stopped 4-4-1 Serial or parallel port test
Failure HDD Controller Failure INTR1 Error INTR2 Error communicate with the floppy drive is installed correctly in the computer drive or hard drive (see Drives) and defined correctly in the controller. system setup program (see System Setup). Check the interface cable at both ends. An interrupt channel on the system board failed to POST. The keyboard or system board may need to be replaced.
1. Turn on your computer. 2. Press the eject button on the front of the optical drive to open the drive tray. 3. Place the Drivers and Utilities media in the center of the drive tray, then press the eject button or gently push on the tray to close it. 4. Restart the computer. 5. When the DELL logo appears, press immediately. NOTE: Keyboard failure may result when a key on the keyboard is held down for extended periods of time.
(Custom Test only) The Dell Diagnostics obtains configuration information for all devices from system setup, memory, and various internal tests, and it displays the information in the device list in the left pane of the screen. NOTE: The device list may not display the names of all the components installed on your computer or all devices attached to your computer. Parameters Allows you to customize the test, if applicable, by changing the test settings.
If a problem occurs on your computer after you install or update a driver, use Windows Device Driver Rollback to replace the driver with the previously installed version. Windows XP: 1. Click Start and click Control Panel. 2. Under Pick a Category® Performance and Maintenance® System® System Properties® Hardware® Device Manager. 3. Right-click the device for which the new driver was installed, then click Properties. 4. Click Driver and click Roll Back Driver. Windows Vista: 1.
4. Right-click the device for which the driver is being reinstalled, then click Properties. 5. Click Driver® Update Driver® Install from a list or specific location (Advanced)® Next. 6. Click to check Include this location in the search, then click Browse and navigate to where the driver files are located on your hard drive. 7. When the name of the appropriate driver appears, click Next. 8. Click Finish and restart your computer. Windows Vista: 1.
1. Click Start . 2. In the Start Search box, type System Restore and press . NOTE: The User Account Control window may appear. If you are an administrator on the computer, click Continue; otherwise, contact your administrator to continue the desired action. 3. Click Next and follow the remaining prompts on the screen. In the event that System Restore did not resolve the issue, you may undo the last system restore.
If you do not press in time, let the computer finish starting, and then restart the computer again. NOTICE: If you do not want to proceed with PC Restore, click Reboot. 3. Click Restore and click Confirm. The restore process takes approximately 6 to 10 minutes to complete. 4. When prompted, click Finish to reboot the computer. NOTE: Do not manually shut down the computer. Click Finish and let the computer completely reboot. 5. When prompted, click Yes. The computer restarts.
5. Click Dell Factory Image Restore. NOTE: Depending upon your configuration, you may need to select Dell Factory Tools, then Dell Factory Image Restore. The Dell Factory Image Restore welcome screen appears. 6. Click Next. The Confirm Data Deletion screen appears. NOTICE: If you do not want to proceed with Factory Image Restore, click Cancel. 7.
7. Follow the instructions on the screen to complete the installation. Troubleshooting Software and Hardware Problems If a device is either not detected during the operating system setup or is detected but incorrectly configured, you can use the Hardware Troubleshooter to resolve the incompatibility. Windows XP: 1. Click Start and click Help and Support. 2. Type hardware troubleshooter in the Search field and click the arrow to start the search. 3.