Maintenance & Service Guide HP t820 Flexible Thin Client
© Copyright 2013 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Microsoft and Windows are U.S. registered trademarks of the Microsoft group of companies. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty.
About This Book WARNING! Text set off in this manner indicates that failure to follow directions could result in bodily harm or loss of life. CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of information. NOTE: Text set off in this manner provides important supplemental information.
iv About This Book
Table of contents 1 Product features ............................................................................................................... 1 Standard configuration features ................................................................................................. 1 Front panel components ............................................................................................................ 2 Rear panel components ........................................................................
Lithium coin cell battery ............................................................................................ 16 4 Removal and replacement procedures ............................................................................ 17 Preparation for disassembly .................................................................................................... 17 Access panel .........................................................................................................................
Computer Setup—Advanced .................................................................................... 66 Recovering the Configuration Settings ....................................................................................... 67 Changing BIOS Settings from the REPSETUP utility ...................................................................... 68 Appendix C Diagnostics and Troubleshooting ..................................................................... 71 LEDs ...........................
Index .................................................................................................................................
1 Product features Standard configuration features Standard configuration features 1
Front panel components 1 USB 2.0 Ports (black) 4 Headphone Connector 2 USB 3.0 Ports (blue) 5 Hard Drive Activity Light 3 Microphone/Headphone Connector 6 Dual-State Power Button NOTE: When a device is plugged into the Microphone/Headphone Connector, a dialog box appears asking if you want to use the connector for a microphone Line-In device or a headphone. You can reconfigure the connector at any time by double-clicking the Audio Manager icon in the Windows® taskbar.
Rear panel components 1 Line-Out Connector for powered audio devices (green) 7 Power Cord Connector 2 USB 2.0 Ports (black) 8 Line-In Audio Connector (blue) 3 USB 3.
Serial number location Each computer has a unique serial number and a product ID number that are located on the exterior of the computer. Keep these numbers available for use when contacting customer service for assistance.
2 Illustrated parts catalog Computer major components Item Description Spare part number (1) Access panel 732763-001 (2) Front bezel 732764-001 (3) Stand 612496-001 System board (includes replacement thermal material) For use in models with WES7 737729-001 AC adapter 180W, standard 613766-001 135W, standard 648964-001 Memory modules (PC3-12800) 8-GB 689374-001 Computer major components 5
Item Description Spare part number 4-GB 689373-001 2-GB 689372-001 Processors (include replacement thermal material) Intel Pentium G3220 (3.0-GHz, 3-MB L3 cache, 54W) 742564-001 Intel Core i5 4570s (2.9-GHz, 6-MB L3 cache, 65W) 732505-001 Drives Description Spare part number mSATA drive 32-GB 719566-001 16-GB 719565-001 Misc boards 6 Description Spare part number AMD Radeon HD 7650A 2GB MXM Graphics 708866-001 HP WLAN 802.
Misc parts Item Description Spare part number (1) Heat sink for use with the processor (includes replacement thermal material) 587456-001 Heat sink for use with the discrete graphics card (includes replacement thermal material; not illustrated) 689369-001 (2) Power switch assembly 732767-001 (3) Speaker 689384-001 (4) Fan, rear 691352-001 (5) Front I/O panel 732762-001 (6) Chassis fan, front 732765-001 SATA data cable, 25.
Sequential part number listing 8 Spare part number Description 587456-001 Heat sink for use with the processor (includes thermal material) 612496-001 Stand 613766-001 180-W power adapter, standard 638814-001 SATA data cable, 25.
Spare part number Description 737729-001 System board for use in models with WES7 (includes replacement thermal material) 742564-001 Intel Pentium G3220 processor (3.
3 Routine care and disassembly preparation This chapter provides general service information for the computer. Adherence to the procedures and precautions described in this chapter is essential for proper service. CAUTION: When the computer is plugged into an AC power source, voltage is always applied to the system board. You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage.
Generating static The following table shows that: ● Different activities generate different amounts of static electricity. ● Static electricity increases as humidity decreases.
Personal grounding methods and equipment Use the following equipment to prevent static electricity damage to equipment: ● Wrist straps are flexible straps with a maximum of one-megohm ± 10% resistance in the ground cords. To provide proper ground, a strap must be worn snug against bare skin. The ground cord must be connected and fit snugly into the banana plug connector on the grounding mat or workstation.
● Conductive foam ● Conductive tabletop workstations with ground cord of one-megohm +/- 10% resistance ● Static-dissipative table or floor mats with hard tie to ground ● Field service kits ● Static awareness labels ● Wrist straps and footwear straps providing one-megohm +/- 10% resistance ● Material handling packages ● Conductive plastic bags ● Conductive plastic tubes ● Conductive tote boxes ● Opaque shielding bags ● Transparent metallized shielding bags ● Transparent shielding tub
● Never cover the ventilation slots on the monitor with any type of material. ● Install or enable power management functions of the operating system or other software, including sleep states. Routine care General cleaning safety precautions 1. Never use solvents or flammable solutions to clean the computer. 2. Never immerse any parts in water or cleaning solutions; apply any liquids to a clean cloth and then use the cloth on the component. 3.
CAUTION: Use safety glasses equipped with side shields before attempting to clean debris from under the keys. ● Visible debris underneath or between the keys may be removed by vacuuming or shaking. ● Canned, pressurized air may be used to clean debris from under the keys. Caution should be used as too much air pressure can dislodge lubricants applied under the wide keys. ● If you remove a key, use a specially designed key puller to prevent damage to the keys.
● Diagnostics software ● Tamper-resistant T-15 wrench Screws The screws used in the computer are not interchangeable. They may have standard or metric threads and may be of different lengths. If an incorrect screw is used during the reassembly process, it can damage the unit. HP strongly recommends that all screws removed during disassembly be kept with the part that was removed, then returned to their proper locations. CAUTION: drives only. Metric screws have a black finish. U.S.
4 Removal and replacement procedures Adherence to the procedures and precautions described in this chapter is essential for proper service. After completing all necessary removal and replacement procedures, run the Diagnostics utility to verify that all components operate properly. NOTE: Not all features listed in this guide are available on all computers. Preparation for disassembly See Routine care and disassembly preparation on page 10 for initial safety procedures. 1.
Access panel Description Spare part number Access panel 732763-001 To access internal components, you must remove the access panel: 1. Prepare the computer for disassembly (Preparation for disassembly on page 17). 2. Loosen the thumbscrew on the rear of the computer (1), slide the access panel toward the rear of the computer, then lift it off (2). To install the access panel, reverse the removal procedure.
Front bezel Description Spare part number Front bezel 732764-001 1. Prepare the computer for disassembly (Preparation for disassembly on page 17). 2. Remove the access panel (Access panel on page 18). 3. Lift up the three tabs on the side of the bezel (1), then rotate the bezel off the chassis (2). To install the front bezel, reverse the removal procedure.
Front bezel security The front bezel can be locked in place by installing a security screw provided by HP. To install the security screw: 20 1. Prepare the computer for disassembly (Preparation for disassembly on page 17). 2. Remove the access panel (Access panel on page 18). 3. Remove the front bezel (Front bezel on page 19). 4. Remove the black screw on the front of the chassis behind the bezel. The screw is labeled "BEZEL." 5. Replace the front bezel.
6. Install the security screw through the middle front bezel release tab and into the chassis to secure the front bezel in place.
Memory Description Spare part number 8-GB, PC3-12800, SODIMM 689374-001 4-GB, PC3-12800, SODIMM 689373-001 2-GB, PC3-12800, SODIMM 689372-001 The computer comes with double data rate 3 synchronous dynamic random access memory (DDR3SDRAM) small outline dual inline memory modules (SODIMMs). SODIMMs The memory sockets on the system board can be populated with up to two industry-standard SODIMMs. These memory sockets are populated with at least one preinstalled SODIMM.
Populating SODIMM sockets There are two SODIMM sockets on the system board, with one socket per channel. The sockets are labeled DIMM1 and DIMM3. The DIMM1 socket operates in memory channel B. The DIMM3 socket operates in memory channel A.
Installing SODIMMs CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the power to drain before adding or removing memory modules. Regardless of the power-on state, voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet. Adding or removing memory modules while voltage is present may cause irreparable damage to the memory modules or system board. The memory module sockets have gold-plated metal contacts.
Front fan Description Spare part number Front fan 732765-001 The front fan sits against the front on the left side of the chassis. 1. Prepare the computer for disassembly (Preparation for disassembly on page 17). 2. Remove the access panel (Access panel on page 18). 3. Disconnect the fan control cable from the red system board connector labeled CHFAN (1). 4. Lift the fan straight up and out of the chassis (2). To install the front fan, reverse the removal procedure.
Speaker Description Spare part number Speaker 689384-001 The speaker is secured to the front of the chassis between the fan and the I/O ports. Remove the screws from the outside and then remove the speaker from the inside. 1. Prepare the computer for disassembly (Preparation for disassembly on page 17). 2. Remove the access panel (Access panel on page 18). 3. Remove the front bezel (Front bezel on page 19). 4. Remove the front fan (Front fan on page 25). 5.
Heat sink Description Spare part number Heat sink 587456-001 The heat sink is secured by four Torx screws. It does not have an attached fan. 1. Prepare the computer for disassembly (Preparation for disassembly on page 17). 2. Remove the access panel (Access panel on page 18). 3. Lift the front fan up and place it on top of the drive cage. You do not need to disconnect the fan cable from the system board. 4.
If using a new heat sink, go to step 3. 1. If reusing the existing heat sink, clean bottom of the heat sink and apply the thermal material provided in the spares kit to the top of the processor. 2. Position the heat sink atop the processor. 3. If using a new heat sink, remove the protective covering from the bottom of the heat sink and place it in position atop the processor. 4. Secure the heat sink to the system board with the 4 captive screws.
Processor Description Spare part number Intel Pentium G3220 (3.0-GHz, 3-MB L3 cache, 54W) 742564-001 Intel Core i5 4570s (2.9-GHz, 6-MB L3 cache, 65W) 732505-001 1. Prepare the computer for disassembly (Preparation for disassembly on page 17). 2. Remove the access panel (Access panel on page 18). 3. Remove the front bezel (Front bezel on page 19). 4. Remove the heat sink (Heat sink on page 27). 5. Rotate the processor locking lever to its full open position (1). 6.
Smart Cover Lock (solenoid lock) Description Spare part number Solenoid lock 732772-001 NOTE: The Smart Cover Lock is an optional feature included on some models only. The Smart Cover Lock is a software-controllable cover lock, controlled by the setup password. This lock prevents unauthorized access to the internal components. The computer ships with the Smart Cover Lock in the unlocked position.
3. From the outside, rear side of the chassis, remove the silver security screw that secures the lock to the chassis. 4. From the inside of the chassis, lift the lock up to gain access to the system board connector.
5. Disconnect the cable from the system board connector labeled HLOCK. To install the Smart Cover Lock, reverse the removal procedure. Refer to the following image for the location of the slots on the back of the chassis in which to install the lock. When installing, insert the top tabs into the top slots, and then rotate the lock downward. Then install the security screw on the outside of the computer. Plug the connector into the system board connector.
Smart Cover Lock (solenoid lock) 33
Drive cage (fiber NIC assembly holder) Description Spare part number Drive cage 732761-001 The drive cage sits behind the USB ports on the front of the chassis. On this thin client, the drive cage does not support drives. The only component the drive cage houses is the fiber NIC assembly. 1. Prepare the computer for disassembly (Preparation for disassembly on page 17). 2. Remove the access panel (Access panel on page 18). 3.
mSATA drive Description Spare part number 32-GB mSATA drive 719566-001 16-GB mSATA drive 719565-001 The mSATA drive is installed onto the system board underneath the hard drive cage. Remove the mSATA drive: 1. Prepare the computer for disassembly (Preparation for disassembly on page 17). 2. Remove the access panel (Access panel on page 18). 3. Remove the drive cage (Drive cage (fiber NIC assembly holder) on page 34). 4. Remove the two Phillips screws (1) that secure the drive to the computer.
Hood sensor Description Spare part number Hood sensor 638816-001 1. Prepare the computer for disassembly (Preparation for disassembly on page 17). 2. Remove the access panel (Access panel on page 18). 3. Remove the drive cage (Drive cage (fiber NIC assembly holder) on page 34). 4. Unplug the hood sensor cable from the white system board connector labeled HSENSE (1) and remove the cable from the white clip mounted on the inside chassis wall (2). 5.
Installing the fiber NIC assembly Description Spare part number Fiber NIC assembly 729624-001 1. Prepare the computer for disassembly (Preparation for disassembly on page 17). 2. Remove the access panel (Access panel on page 18). 3. Remove the drive cage (Drive cage (fiber NIC assembly holder) on page 34). 4. Insert the Fiber NIC assembly into the hard drive carrier. 5. Insert the four Torx isolation screws to secure the assembly into the carrier.
38 6. Insert the smaller fiber card into the PCI slot in the system board (1), and rotate the board downward. 7. Insert the two Torx screws that secure the card onto the system board (1), and the insert the FFC cable into the connector on the card. 8. Install the hard drive carrier assembly into the hard drive cage. For more information, see Drive cage (fiber NIC assembly holder) on page 34.
9. Route the cable through the front of the hard drive carrier cage, and then insert the cable into the connector on the larger fiber card.. 10. Install the clips in the two locations as shown in the following image, and then route the cables through the clips.
11. Disconnect the cable ends from the connector. 12. On the outside, rear of the computer, install the connector by inserting the connector through the slot on the computer, and then inserting the two Torx screws to secure the connector. 13. From the inside, rear of the computer, plug the cables into the connector. Plug the white cable into the port labeled ‘R’ and the green cable into the port labeled ‘T’. To remove the fiber NIC assembly, reverse the removal procedures.
WLAN module Description Spare part number HP WLAN 802.11 a/b/g/n 2x2 PCIe NIC 695915-001 1. Prepare the computer for disassembly (Preparation for disassembly on page 17). 2. Remove the access panel (Access panel on page 18). 3. Remove the drive cage (Drive cage (fiber NIC assembly holder) on page 34). 4. Disconnect the two antenna cables from the connectors on the module (1). 5. Remove the two Phillips screws (2) that secure the module to the system board. 6.
Graphics board Description Spare part number AMD Radeon HD 7650A 2GB MXM Graphics 708866-001 CAUTION: Be very careful when removing or replacing the system board to prevent damaging it. 1. Prepare the computer for disassembly (Preparation for disassembly on page 17). 2. Remove the access panel (Access panel on page 18). 3. Remove the drive cage (Drive cage (fiber NIC assembly holder) on page 34). 4.
Power switch Description Spare part number Power switch 732767-001 1. Prepare the computer for disassembly (Preparation for disassembly on page 17). 2. Remove the access panel (Access panel on page 18). 3. Remove the front bezel (Front bezel on page 19). 4. Remove the drive cage (Drive cage (fiber NIC assembly holder) on page 34). 5. Disconnect the power switch cable from the system board connector labeled PB/LED. 6. Remove the power switch cable from atop the front I/O bracket. 7.
System board Description Spare part number System board for use in models with WES7 737729-001 Front I/O panel 732762-001 CAUTION: Be very careful when removing or replacing the system board to prevent damaging it. When replacing the system board, make sure to remove the following components (as applicable) from the old system board and install them on the new system board: 44 ● Memory modules (Memory on page 22). ● mSATA drive (mSATA drive on page 35). ● Processor (Processor on page 29).
10. Remove the front I/O panel: a. Remove the Torx T15 screw from the right side of the panel that secures it to the front of the chassis. b. Press the tab on right side of the panel (1), and then swing the right side of the cage away from the chassis to remove it (2).
11. Remove the three remaining Torx T15 screws that secure the system board to the chassis. 12. Slide system board toward the front of the unit until the rear connectors are clear of their slots in the chassis (1). 13. Lift the rear of the system board until it clears the chassis, and then remove the system board from the chassis (2). To install the system board, reverse the removal procedure. NOTE: When replacing the system board, you must also change the chassis serial number in the BIOS.
Rear fan Description Spare part number Rear fan 691352-001 The rear fan is secured to the rear right corner of the chassis. You must remove the system board before you can remove the rear fan. 1. Prepare the computer for disassembly (Preparation for disassembly on page 17). 2. Remove the access panel (Access panel on page 18). 3. Remove the front fan (Front fan on page 25). 4. Remove the drive cage (Drive cage (fiber NIC assembly holder) on page 34). 5.
9. From the inside of the chassis, slide the fan out from underneath the chassis lip, and then remove the fan. To install the rear fan, reverse the removal procedure.
Antennas Two antennas are secured to chassis – one on the front, one on the back. You must remove all other components to remove the antennas. 1. Prepare the computer for disassembly (Preparation for disassembly on page 17). 2. Remove the access panel (Access panel on page 18). 3. Remove the front fan (Front fan on page 25). 4. Remove the drive cage (Drive cage (fiber NIC assembly holder) on page 34). 5. Remove the fiber NIC assembly (Installing the fiber NIC assembly on page 37). 6.
11. Pull the antenna out of the clips on the front of the chassis (2), and then pull the antenna out of the hole it routes through (3). 12. To remove the rear antenna, from the inside of the front of the chassis, remove the antenna from the plastic clips attached to the side of the chassis.
13. From the outside of the rear of the chassis, remove the two Torx T8 screws that secure the antenna to the chassis. 14. Pull the antenna through the hole it routes through. To install the rear fan, reverse the removal procedure.
Changing from desktop to tower configuration The computer can be used in a tower orientation with the tower stand included with the computer. 1. Remove/disengage any security devices that prohibit opening the computer. 2. Remove all removable media, such as compact discs or USB flash drives, from the computer. 3. Turn off the computer properly through the operating system, then turn off any external devices. 4. Disconnect the power cord from the power outlet and disconnect any external devices.
Port cover An optional rear port cover is available for the computer. To install the port cover: 1. Thread the cables through the bottom hole on the port cover (1) and connect the cables to the rear ports on the computer. 2. Insert the hooks on the port cover into the slots on the rear of the chassis, then slide the cover to the right to secure it in place (2). NOTE: For security purposes, you can install an optional cable lock to the chassis that locks the port cover and secures the computer.
Power supply, external The chassis uses an external power supply. WARNING! To reduce potential safety issues, only the power supply provided with the computer, a replacement power supply provided by HP, or a power supply purchased as an accessory from HP should be used with the computer.
A Battery replacement The battery that comes with the computer provides power to the real-time clock. When replacing the battery, use a battery equivalent to the battery originally installed in the computer. The computer comes with a 3-volt lithium coin cell battery. WARNING! The computer contains an internal lithium manganese dioxide battery. There is a risk of fire and burns if the battery is not handled properly. To reduce the risk of personal injury: Do not attempt to recharge the battery.
6. Locate the battery and battery holder on the system board. NOTE: On some computer models, it may be necessary to remove an internal component to gain access to the battery. 7. Depending on the type of battery holder on the system board, complete the following instructions to replace the battery. Type 1 a. Lift the battery out of its holder. b. Slide the replacement battery into position, positive side up. The battery holder automatically secures the battery in the proper position. Type 2 a.
b. Insert the new battery and position the clip back into place. NOTE: After the battery has been replaced, use the following steps to complete this procedure. 8. Replace the access panel. 9. Plug in the computer and turn on power to the computer. 10. Reset the date and time, your passwords, and any special system setups using Computer Setup. 11. Lock any security devices that were disengaged when the access panel was removed.
B Computer Setup (F10) Utility, BIOS Settings Computer Setup (F10) Utilities Use Computer Setup (F10) Utility to do the following: 58 ● Change factory default settings. ● Set the system date and time. ● Set, view, change, or verify the system configuration, including settings for processor, graphics, memory, audio, storage, communications, and input devices. ● Modify the boot order of bootable devices such as solid-state drives or USB flash media devices.
Using Computer Setup (F10) Utilities Computer Setup can be accessed only by turning the computer on or restarting the system. To access the Computer Setup Utilities menu, complete the following steps: 1. Turn on or restart the computer. 2. Press either Esc or F10 while the “Press the ESC key for Startup Menu” message is displayed at the bottom of the screen. Pressing Esc displays a menu that allows you to access different options available at startup.
Computer Setup—File NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration.
Computer Setup—Storage NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table B-3 Computer Setup—Storage Option Description Device Configuration Lists all installed BIOS-controlled storage devices. When a device is selected, detailed information and options are displayed. The following options may be presented: Hard Disk: Size, model, firmware version, serial number, connector color.
Computer Setup—Security NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table B-4 Computer Setup—Security Option Description Setup Password Allows you to set and enable a setup (administrator) password. NOTE: If the setup password is set, it is required to change Computer Setup options, flash the ROM, and make changes to certain plug and play settings under Windows. Power-On Password Allows you to set and enable a power-on password.
Table B-4 Computer Setup—Security (continued) ● ◦ USB3 Port 1 ◦ USB3 Port 2 Accessory USB Ports ◦ USB Port 1 Slot Security Allows you to disable any PCI Express slot. Default is enabled. Network Boot Enables/disables the computer’s ability to boot from an operating system installed on a network server. (Feature available on NIC models only; the network controller must be either a PCI expansion card or embedded on the system board.) Default is enabled.
Table B-4 Computer Setup—Security (continued) System Security (some models: these options are hardware dependent) Data Execution Prevention (enable/disable) - Helps prevent operating system security breaches. Default is enabled. SVM CPU Virtualization (enable/disable). Controls the virtualization features of the processor. Changing this setting requires turning the computer off and then back on. Default is disabled.
Computer Setup—Power NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table B-5 Computer Setup—Power Option Description OS Power Management ● Idle Power Savings—Extended/Auto/Normal. Allows certain operating systems to decrease the processors power consumption when the processor is idle. Default is extended. ● Runtime Power Management— Enable/Disable.
Computer Setup—Advanced NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table B-6 Computer Setup—Advanced (for advanced users) Option Heading Power-On Options Allows you to set: ● POST mode (QuickBoot, Clear Memory, FullBoot, or FullBoot Every x Days). ● POST messages (enable/disable). Default is disabled. ● Press the ESC key for Startup Menu (Enable/Disable). Controls display of the message at the bottom of the POST screen during boot.
Table B-6 Computer Setup—Advanced (for advanced users) (continued) Bus Options Device Options On some models, allows you to enable or disable: ● PCI SERR# Generation. Default is enabled. ● PCI VGA Palette Snooping, which sets the VGA palette snooping bit in PCI configuration space; only needed when more than one graphics controller is installed. Default is disabled. Allows you to set: ● Printer mode (Bi-Directional, EPP + ECP, Output Only). Default is EPP+ECP. ● Num Lock State at Power-On (off/on).
Changing BIOS Settings from the REPSETUP utility Some BIOS settings may be changed locally within the operating system without having to go through the F10 utility1. This table identifies the items that can be controlled with this method.
Network Service Boot Disable Enable Enter Ownership Tag na na Enter UUID na na Data Execution Prevention Disable Enable SVM CPU Virtualization Disable Enable Activate Embedded Security On Next Boot Disable Enable Embedded Security Activation Policy F1 to Boot Allow user to reject, No Prompts OS management of Embedded Security Device Disable Enable Reset of Embedded Security Device through OS Disable Enable Master Boot Record Security Disable Enable Runtime Power Management Ena
PCI VGA Palette Snooping Disable Enable Printer Mode EPP+ECP Bi-Directional, Output-Only Num Lock State at PowerOn Off On Integrated Video Auto Disable, Force UMA Size 512M 32M, 64M, 256M, 512M, 1G Internal Speaker Enable Disable NIC Option ROM Download PXE Disable Default Setup Leave Defaults As Is (No Update) Save Current Settings as Default, Restore Factory Settings as Default Apply Defaults and Exit Do Not Apply Apply Power-On Password na na Setup Password na na NOTE: Se
C Diagnostics and Troubleshooting LEDs Table C-1 Power and IDE Flash Activity LEDs LED Status Power LED Off When the unit is plugged into the wall socket and the Power LED is off, the unit is powered off. However, the network can trigger a Wake On LAN event in order to perform management functions. Power LED On Displays during boot sequence and while the unit is on.
Wake-on LAN Wake-on LAN (WOL) allows a computer to be turned on or resumed from sleep or hibernation state by a network message. You can enable or disable WOL in Computer Setup using the S5 Maximum Power Savings setting. To enable or disable WOL: 1. Turn on or restart the computer. 2. Press either Esc or F10 while the “Press the ESC key for Startup Menu” message is displayed at the bottom of the screen.
Resetting the Administrator and power-on passwords You can reset the Administrator and power-on passwords as follows: 1. Turn off the computer and disconnect the power cord from the power outlet. 2. Remove the side access panel and the metal side cover. 3. Remove the password jumper from the system board header labeled PSWD. 4. Replace the metal side cover and the side access panel. 5. Connect the computer to AC power, and then turn on the computer. 6.
Interpreting POST Diagnostic Front Panel LEDs and Audible Codes This section covers the front panel LED codes as well as the audible codes that may occur before or during POST that do not necessarily have an error code or text message associated with them. WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system board.
Table C-3 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes four times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. 4 Power failure (power supply is overloaded). 1. Check if a device is causing the problem by removing ALL attached devices. Power on the system.
Table C-3 Diagnostic Front Panel LEDs and Audible Codes (continued) 76 Activity Beeps Possible Cause Recommended Action Red Power LED flashes eight times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. 8 Invalid ROM based on bad checksum. 1. Reflash the system ROM with the latest BIOS image using the BIOS Recovery procedure. 2. Replace the system board. System does not power on and LEDs are not flashing.
POST Numeric Codes and Text Messages This section covers those POST errors that have numeric codes associated with them. The section also includes some text messages that may be encountered during POST. NOTE: The computer will beep once after a POST text message is displayed on the screen. Table C-4 Numeric Codes and Text Messages Control panel message Description Recommended action 103-System Board Failure DMA or timers. 1. Clear CMOS. 2. Remove expansion boards. 3. Replace the system board. 1.
Table C-4 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action 301-Keyboard Error Keyboard failure. 1. Reconnect keyboard with computer turned off. 2. Check connector for bent or missing pins. 3. Ensure that none of the keys are depressed. 4. Replace keyboard. 510-Flash Screen Image Corrupted Flash Screen image has errors. Reflash the system ROM with the latest BIOS image.
Table C-4 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action Network Server Mode Active and No Keyboard Attached Keyboard failure while Network Server Mode enabled. 1. Reconnect keyboard with computer turned off. 2. Check connector for bent or missing pins. 3. Ensure that none of the keys are depressed. 4. Replace keyboard. Parity Check 2 Parity RAM failure. Run Computer Setup and Diagnostic utilities.
Table C-5 Power-On Troubleshooting (continued) No link or activity on the network RJ-45 LEDs or the LEDs do not illuminate blinking green after powering on the thin client unit. (The network LEDs are located inside the RJ-45 connector on the top, rear panel of the thin client. Indicator lights are visible when the connector is installed.) 1. Verify that the network is not down. 2.
Table C-6 Diskless Unit Troubleshooting (continued) 2. Client ID Information from server If no Client ID information there is no network connection. This may be caused by a bad cable, the server is down, or a bad system board. Contact the Call Center for service for the bad system board. MASK Information from server If no MASK information there is no network connection. This may be caused by a bad cable, the server is down, or a bad system board.
D Restoring the Flash Image System Requirements To create a recovery device for the purpose of reflashing or restoring the software image on the ROM, you will need the following: ● A personal computer running Microsoft Windows XP Professional or Windows 7. ● One or more HP t820 Flexible Thin Clients ● 8-GB USB flash device for Microsoft Windows Embedded Standard 7 (WES 7) (if using the USB format). This restore method will not work with all USB flash devices.
first restart of the thin client following the restore process, it may take approximately 15 minutes to unbundle the software before the Windows Desktop is displayed. Formatting a USB Flash Drive CAUTION: To prevent loss of data, be sure that you have saved any user-created data from the USB drive to another drive. 1. Connect your USB flash device (drive key) to your personal computer. Ensure that only one USB flash device is connected to the system. 2. Click USB Format. 3.
E Device management The t820 includes a license for HP Device Manager and has a Device Manager agent pre-installed. HP Device Manager is a thin client optimized management tool used to manage the full life cycle of HP thin clients to include Discover, Asset Management, Deployment and Configuration. For more information on HP Device Manager, please visit www.hp.com/go/hpdm. If you wish to manage the t820 with other management tools such as Microsoft SCCM or LANDesk, go to www.hp.
F Adding an Image Restore Tool 1. Ensure that the boot order is set to use the Network as the first boot device. 2. Ensure that IBR.exe (Image Restore) and Flash.dd are stored in the same directory on the server. (e.g., c:\program files\altiris\express\deployment server\images) 3. From the Altiris Deployment Server Console, click File > New > Job . 4. Enter a unique name for the job that you will use to deploy the original thin client image. 5. Click the name of the new job. 6.
G System BIOS Updating or restoring a BIOS HP Device Manager HP Device Manager can be used to update the BIOS of a t820 thin client. Customers can use a prebuilt BIOS add-on or can use the standard BIOS upgrade package along with an HP Device Manager File and Registry template. For more information on HP Device Manager File and Registry templates, review the HP Device Manager User Guide found at www.hp.com/go/hpdm.
A BIOS upgrade option is available through both the Startup Menu and the F10 Setup utility using the "Flash System ROM" feature. 1. Reboot the computer and press the Esc key to display the Startup Menu. 2. Use the arrow keys to select Utilities, and then select the Flash System ROM option. 1. Alternatively, reboot the PC and press F10 to access the BIOS Setup utility. 2. In the File menu, select Flash System ROM.
more complete description of the network BIOS flashing utilities, view the DOSFlash.txt file located in the DOS Flash folder. BitLocker Drive Encryption / BIOS Measurements If you have Windows BitLocker Drive Encryption (BDE) enabled on your system, we recommend that you temporarily suspend BDE before updating the BIOS. You should also obtain your BDE recovery password or recovery PIN before suspending BDE. After the you flash the BIOS, you can resume BDE.
H Power cord set requirements The power supplies on some computers have external power switches. The voltage select switch feature on the computer permits it to operate from any line voltage between 100-120 or 220-240 volts AC. Power supplies on those computers that do not have external power switches are equipped with internal switches that sense the incoming voltage and automatically switch to the proper voltage.
Country-specific requirements Additional requirements specific to a country are shown in parentheses and explained below. 90 Country Accrediting Agency Country Accrediting Agency Australia (1) EANSW Italy (1) IMQ Austria (1) OVE Japan (3) METI Belgium (1) CEBC Norway (1) NEMKO Canada (2) CSA Sweden (1) SEMKO Denmark (1) DEMKO Switzerland (1) SEV Finland (1) SETI United Kingdom (1) BSI France (1) UTE United States (2) UL Germany (1) VDE 1.
I Statement of Volatility HP confirms that Intel-based HP t820 Flexible Thin Client systems contain DDR3 volatile memory (memory amount depends on the customer configuration).
9. Enter the F10 Setup Utility. 10. Go to the Security menu. 11. Select Secure Boot Configuration. 12. Use the arrow to select Clear Secure boot keys in the Key Management section. 13. Use the space key to select Clear. 14. Press F10 to accept changes. 15. From the main menu, select File, and then select Save Changes and Exit. 16. Enter the F10 Setup Utility. 17. If the Ownership Tag or Asset Tag is set, manually clear it by selecting Security, and then System IDs. 18.
J Specifications Chassis Height 2.60 in 6.6 cm Width 9.90 in 25.1 cm Depth (depth will increase if the computer is equipped with a port security bracket) 10.00 in 25.4 cm Approximate Weight 6.8 lb 3.1 kg Weight Supported (maximum distributed load in desktop position) 77 lb 35 kg 50° to 95° F 10° to 35° C -22° to 140° F -30° to 60° C Temperature Range (values subject to change with increasing altitude above sea level) Operating Nonoperating NOTE: Operating temperature is derated 1.
Index A AC adapter spare part number 5, 8 access panel removal and replacement 18 spare part number 5, 8, 18 adding an image restore tool 85 antennas removal and replacement 49 audible codes 74 B basic troubleshooting 79 battery disposal 16 battery replacement 55 beep codes 74 BIOS 86 updating 86 C cautions AC power 10 cables 16 electrostatic discharge 10 keyboard cleaning 15 keyboard keys 15 changing BIOS settings in the REPSETUP utility 68 chasis types, illustrated 10 chassis fan spare part number 8 clea
mouse cleaning 15 mouse, spare part number 7 mSATA drive removal 35 spare part numbers 6, 35 N numeric error codes system board 44 WLAN tuner module 41 removing battery 55 resetting the Administrator password 73 restore 85 restoring the flash image 82 77 O operating guidelines 13 overheating, prevention 13 P power and IDE flash activity LEDs 71 power cord set requirements country specific 90 power supply operating voltage range 93 power switch assembly removal and replacement 43 power-on diagnostic tests
