Hardware Reference Guide HP EliteDesk 705 G4 MT Workstation PC
© Copyright 2018 HP Development Company, L.P. The information contained herein is subject to change without notice. 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. HP shall not be liable for technical or editorial errors or omissions contained herein.
About This Guide This guide provides basic information for upgrading the HP EliteDesk Business PC. WARNING! Indicates a hazardous situation that, if not avoided, could result in death or serious injury. CAUTION: Indicates a hazardous situation that, if not avoided, could result in minor or moderate injury. IMPORTANT: Indicates information considered important but not hazard-related (for example, messages related to property damage).
iv About This Guide
Table of contents 1 Product features ........................................................................................................................................... 1 Standard configuration features ........................................................................................................................... 1 Front panel components .......................................................................................................................................
Appendix A Battery replacement ..................................................................................................................... 50 Appendix B Electrostatic discharge .................................................................................................................. 54 Preventing electrostatic damage ........................................................................................................................ 54 Grounding methods .................................
1 Product features Standard configuration features Features may vary depending on the model. For support assistance and to learn more about the hardware and software installed on your computer model, run the HP Support Assistant utility.
Front panel components Drive configuration may vary by model. Some models have a bezel blank covering the slim optical drive bay. Front panel components 1 5.
Rear panel components Rear panel components 1 Audio-out jack for powered audio devices 6 Audio-in jack 2 DisplayPort monitor connectors (2) 7 RJ-45 (network) jack 3 Optional flex port 8 Serial port (optional) 4 USB ports (4) 9 Power cord connector 5 USB SuperSpeed ports (2) NOTE: When a graphics card is installed in one of the system board slots, the video connectors on the graphics card and/or the integrated graphics on the system board may be used.
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 Hardware upgrades Serviceability features The computer includes features that make it easy to upgrade and service. A Torx T15 or flat-bladed screwdriver is needed for some of the installation procedures described in this chapter. Warnings and cautions Before performing upgrades be sure to carefully read all of the applicable instructions, cautions, and warnings in this guide.
Removing the computer access panel To access internal components, you must remove the access panel. 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, and turn off any external devices. 4. Disconnect the power cord from the AC outlet and disconnect any external devices.
Replacing the computer access panel Be sure that the access panel release lever is locked into place, and then place the access panel on the computer (1) and slide the panel forward (2). The release lever will automatically move back to the right and lock the access panel.
Removing the front bezel 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, and turn off any external devices. 4. Disconnect the power cord from the AC outlet and disconnect any external devices.
Removing bezel blanks On some models, bezel blanks cover the optical drive bays. You must remove the bezel blank before installing an optical drive. To remove a bezel blank: 1. Remove the access panel and front bezel. 2. To remove a 5.25-inch optical drive bezel blank, press inward on the two tabs on the right side of the blank (1), and then rotate the blank off the front bezel (2).
Replacing the front bezel Insert the three hooks on the bottom edge of the bezel into the rectangular holes on the chassis (1), and then rotate the top side of the bezel onto the chassis (2) and snap it into place. Removing and installing the optional front bezel dust filter Some models are equipped with an optional front bezel dust filter. You must periodically clean the dust filter so that the dust collected on the filter does not impede air flow through the computer.
3. To remove the dust filter, use your fingers to separate the filter from the front bezel at the tab locations shown below. 4. Use a soft brush or cloth to clean dust from the filter. If heavily soiled, rinse the filter clean with water. 5. To replace the dust filter, press the filter firmly onto the front bezel at the tab locations shown below. 6. Reconnect the power cord and any external devices, and then turn on the computer.
System board connections Refer to the following illustration and table to identify the system board connectors for your model. 12 Item System board connector System board label Color Component 1 PCI Express x1 X1PCIEXP3 black Expansion card 2 PCI Express x1 X1PCIEXP2 black Expansion card 3 PCI Express x1 X1PCIEXP1 black Expansion card 4 PCI Express x16 X16PCIEXP black Expansion card 5 SATA 3.0 SATA0 dark blue Primary hard drive 6 SATA 3.
Upgrading system memory The computer comes with double data rate 4 synchronous dynamic random access memory (DDR4-SDRAM) dual inline memory modules (DIMMs). The memory sockets on the system board are populated with at least one preinstalled memory module. To achieve the maximum memory support, you can populate the system board with up to 64 GB of memory configured in a high-performing dual-channel mode.
DIMM and one 1 GB DIMM, and Channel B should be populated with the other two 1 GB DIMMs. With this configuration, 4 GB will run as dual-channel and 1 GB will run as single-channel. ● In any mode, the maximum operational speed is determined by the slowest DIMM in the system. IMPORTANT: You must disconnect the power cord and wait approximately 30 seconds for the power to drain before adding or removing memory modules.
7. Lift the rear of the drive cage up (1), and then slide the drive cage back (2). Then lift the drive cage (3) out of the chassis.
8. Open both latches of the memory module socket (1), and insert the memory module into the socket (2). Press the module down into the socket, ensuring that the module is fully inserted and properly seated. Make sure the latches are in the closed position (3). NOTE: A memory module can be installed in only one way. Match the notch on the module with the tab on the memory socket. Populate the black DIMM sockets before the white DIMM sockets.
11. Connect the power and data cables to the rear of the drives in the drive cage. 12. Replace the computer access panel. 13. Reconnect the power cord and any external devices, and then turn on the computer. The computer should automatically recognize the additional memory. 14. Lock any security devices that were disengaged when the access panel was removed. Removing or installing an expansion card The computer has three PCI Express x1 expansion sockets and one PCI Express x16 expansion socket.
7. Locate the correct vacant expansion socket on the system board and the corresponding expansion slot on the back of the computer chassis. 8. Before installing an expansion card, remove the expansion slot cover or the existing expansion card. NOTE: Before removing an installed expansion card, disconnect any cables that may be attached to the expansion card. 18 a.
c. 9. If you are removing a PCI Express x16 card, pull the retention arm (1) on the back of the expansion socket away from the card and carefully rock the card back and forth until the connectors pull free from the socket. Lift the card straight up (2) then away from the inside of the chassis (3) to remove it. Be sure not to scrape the card against other components. Store the removed card in anti-static packaging. 10.
11. To install a new expansion card, hold the card just above the expansion socket on the system board then move the card toward the rear of the chassis (1) so that the bottom of the bracket on the card slides into the small slot on the chassis. Press the card straight down into the expansion socket on the system board (2). NOTE: When installing an expansion card, press firmly on the card so that the whole connector seats properly in the expansion card socket. 12.
Drive positions Drive positions 1 3.5-inch hard drive bay 2 2.5-inch hard drive bay 3 9.5 mm slim optical drive bay 4 5.25-inch half-height drive bay 5 2.5-inch hard drive bay NOTE: The drive configuration on your computer may be different than the drive configuration shown above.
Removing and Installing drives When installing drives, follow these guidelines: ● The primary Serial ATA (SATA) hard drive must be connected to the dark-blue primary SATA connector on the system board labeled SATA0. ● Connect secondary hard drives and optical drives to one of the light-blue SATA connectors on the system board (labeled SATA1, SATA2, and SATA3). ● You must install mounting screws for hard drives and 5.
Removing a 5.25-inch drive NOTE: All removable media should be taken out of a drive before removing the drive from 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, and turn off any external devices. 4. Disconnect the power cord from the AC outlet and disconnect any external devices.
7. Push the green drivelock mechanism towards the drive (1), and then slide the drive from the drive bay (2). Installing a 5.25-inch drive 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, and turn off any external devices. 4. Disconnect the power cord from the AC outlet and disconnect any external devices.
7. If you are installing an optical drive, install four M3 metric mounting screws (not provided) in the lower holes on each side of the drive. NOTE: M3 metric mounting screws can be purchased from HP. If you are replacing a drive, transfer the mounting screws from the old drive to the new drive. IMPORTANT: Use only 5 mm long screws as mounting screws. Longer screws can damage the internal components of the drive. 8. If you are installing a 5.
9. Slide the drive into the drive bay, making sure to align the mounting screws with the mounting slots, until the drive snaps into place. 10. Connect the power cable (1) and data cable (2) to the rear of the optical drive. 11. Connect the opposite end of the data cable to one of the light-blue SATA connectors on the system board. NOTE: Refer to System board connections on page 12 for an illustration of the system board drive connectors. 12. Replace the front bezel and computer access panel. 13.
Removing a 9.5 mm slim optical drive 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, and turn off any external devices. 4. Disconnect the power cord from the AC outlet and disconnect any external devices.
7. Push the green release latch on the right rear side of the drive toward the center of the drive (1), and then slide the drive forward and out of the bay (2). Installing a 9.5 mm slim optical drive 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, and turn off any external devices. 4.
8. Align the small pin on the release latch with the small hole on the side of the drive and press the latch firmly onto the drive. 9. Slide the optical drive through the front of the chassis (1) all the way into the bay so that the green latch locks onto the chassis frame (2).
10. Connect the power cable (1) and data cable (2) to the rear of the optical drive. 11. Connect the opposite end of the data cable to one of the light-blue SATA connectors on the system board. 12. Replace the front bezel if it was removed. 13. Replace the computer access panel. 14. Reconnect the power cord and any external devices, and then turn on the computer. 15. Lock any security devices that were disengaged when the access panel was removed. Removing a 3.
6. Disconnect the power cable (1) and data cable (2) from the rear of the hard drive. 7. Pull the release lever next to the rear of the hard drive outward (1). While pulling the release lever out, lift the rear of the drive up (2), and then slide the front of the drive back and lift it out of the bay (3).
Installing a 3.5-inch hard drive 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, and turn off any external devices. 4. Disconnect the power cord from the AC outlet and disconnect any external devices.
– Secure the drive to the bay adapter bracket by installing four black M3 adapter bracket screws through the underside of the bracket and into the drive.
– 7. 34 Install four 6-32 silver-and-blue mounting screws in the adapter bracket (two on each side of the bracket). Align the mounting screws on the front of the hard drive with the slots on the drive cage and press the front of the drive down and forward into the bay (1). Then press the rear of the drive down into the drive bay (2) to lock it in place.
8. Connect the power cable (1) and data cable (2) to the rear of the hard drive. 9. If installing a new drive, connect the opposite end of the data cable to the appropriate system board connector. NOTE: If the 3.5-inch hard drive is the primary drive, connect the other end of the data cable to the dark-blue SATA connector on the system board labeled SATA0. If it is a secondary hard drive, connect the other end of the data cable to one of the light-blue SATA connectors on the system board. 10.
36 6. Disconnect the power cable (1) and data cable (2) from the rear of the hard drive. 7. Pull the release lever at the rear of the drive outward (1) and lift the rear of the drive up (2). Then slide the front of the drive back until it stops and pull the drive up and out of the drive bay (3).
Installing a 2.5-inch hard drive 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, and turn off any external devices. 4. Disconnect the power cord from the AC outlet and disconnect any external devices.
7. Align the front mounting screws on the drive with the J-slots on the sides of the drive bay. Press the front of the drive into the drive bay, and then slide the drive forward (1). Then press the rear of the drive down into the drive bay (2) so that the drive is secured in place. 8. Connect the power cable (1) and data cable (2) to the rear of the hard drive. NOTE: If the 2.
Removing and installing an M.2 SSD storage card NOTE: cards. There is one M.2 SSD socket on the system board. The computer supports 2230 and 2280 M.2 SSD 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, and turn off any external devices. 4.
40 8. To remove an M.2 SSD card, remove the screw that secures the card (1), lift the end of the card up (2), and then slide the card out of the system board connector (3). 9. To install an M.2 SSD card, slide the pins on the card into the system board connector while holding the card at approximately a 30° angle (1). Press the other end of the card down (2), and then secure the card with the screw (3).
10. Align the pegs on the sides of the drive cage with the slots on the chassis and press the drive cage down (1) into the chassis. Then slide the drive cage forward (2) so that it locks in place. 11. Connect the power and data cables to the rear of the drives in the drive cage. 12. Replace the computer access panel. 13. Reconnect the power cord and any external devices, and then turn on the computer. 14. Lock any security devices that were disengaged when the access panel was removed.
Installing a security lock The security locks displayed below and on the following pages can be used to secure the computer. Security cable lock 42 1. Loop the security cable around a stationary object. 2. Insert the security cable lock into the security cable slot. Then lock it in place with the key.
Padlock HP Business PC Security Lock V2 1. Attach the security cable fastener to a desktop using the appropriate screws for your environment (screws not provided) (1), and then snap the cover onto the base of the cable fastener (2).
44 2. Loop the security cable around a stationary object. 3. Slide the security cable through the security cable fastener.
4. Pull the two scissor hands of the monitor lock apart and insert the lock into the security cable slot on the rear of the monitor (1), close the scissor hands together to secure the lock in place (2), and then slide the security cable guide through the center of the monitor lock (3). 5. Slide the security cable through the security cable guide installed on the monitor.
46 6. Attach the accessory cable fastener to a desktop using the appropriate screw for your environment (screw not provided) (1), and then place the accessory cables into the base of the fastener (2). 7. Slide the security cable through the holes in the accessory cable fastener.
8. Screw the lock to the chassis using the screw provided. 9. Insert the plug end of the security cable into the lock (1) and push the button in (2) to engage the lock. Use the key provided to disengage the lock.
10. When you have completed all steps, all of the devices at your workstation will be secured. Front bezel security The front bezel can be secured in place by installing a 6-32 screw through the front of the chassis into the front bezel. 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, and turn off any external devices.
6. Remove the 6-32 security screw from the inside of the front bezel. 7. Replace the front bezel. 8. Install the 6-32 security screw through the front of the chassis and into the screw hole located below the center bezel release tab. 9. Replace the computer access panel. 10. Reconnect the power cord and any external devices, and then turn on the computer. 11. Lock any security devices that were disengaged when the access panel was removed.
A Battery replacement The battery installed on the computer provides power to the real-time clock. When replacing the battery, use a battery equivalent to the battery originally installed on the computer. The computer has a 3-volt lithium coin cell battery installed. 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.
b. Slide the replacement battery into position, positive side up. The battery holder automatically secures the battery in the proper position. Type 2 a. To release the battery from its holder, squeeze the metal clamp that extends above one edge of the battery (1). When the battery pops up, lift it out (2).
b. To insert the new battery, slide one edge of the replacement battery under the holder’s lip with the positive side up (1). Push the other edge down until the clamp snaps over the other edge of the battery (2). Type 3 a. Pull back the clip (1) that is holding the battery in place, and remove the battery (2). 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. 52 8.
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 computer access panel was removed.
B Electrostatic discharge A discharge of static electricity from a finger or other conductor may damage system boards or other staticsensitive devices. This type of damage may reduce the life expectancy of the device. Preventing electrostatic damage To prevent electrostatic damage, observe the following precautions: ● Avoid hand contact by transporting and storing products in static-safe containers. ● Keep electrostatic-sensitive parts in their containers until they arrive at static-free workstations.
C Computer operating guidelines, routine care and shipping preparation Computer operating guidelines and routine care Follow these guidelines to properly set up and care for the computer and monitor: ● Keep the computer away from excessive moisture, direct sunlight, and extremes of heat and cold. ● Operate the computer on a sturdy, level surface. Leave a 10.2-cm (4-inch) clearance on all vented sides of the computer and above the monitor to permit the required airflow.
Optical drive precautions Be sure to observe the following guidelines while operating or cleaning the optical drive. Operation ● Do not move the drive during operation. This may cause it to malfunction during reading. ● Avoid exposing the drive to sudden changes in temperature, as condensation may form inside the unit. If the temperature suddenly changes while the drive is on, wait at least one hour before you turn off the power. If you operate the unit immediately, it may malfunction while reading.
D Accessibility HP designs, produces, and markets products and services that can be used by everyone, including people with disabilities, either on a stand-alone basis or with appropriate assistive devices. Supported assistive technologies HP products support a wide variety of operating system assistive technologies and can be configured to work with additional assistive technologies. Use the Search feature on your device to locate more information about assistive features.
Index A access panel removal 6 replacement 7 accessibility 57 B battery replacement 50 C computer operating guidelines 55 installing 2.5-inch hard drive 37 3.5-inch hard drive 32 battery 50 computer access panel 7 drive cables 22 dust filter 10 expansion card 17 M.
