HP Desktop MiniHardware Reference Guide
Rear panel components (EliteDesk 800, and ProDesk 600)NOTE: Your computer model may look slightly dierent from the illustration in this section.Item
Rear panel components (ProDesk 400)NOTE: Your computer model may look slightly dierent from the illustration in this section.Item Icon Component Item
Serial number locationEach computer has a unique serial number and a product ID number that are located on the exterior of the computer. Keep these nu
2 SetupChanging from desktop to tower orientationThe computer can be used in a tower orientation with an optional tower stand that can be purchased fr
NOTE: Be sure that at least 10.2 centimeters (4 inches) of space on all sides of the computer remains clear and free of obstructions.7. Lock any secur
Attaching the computer to a mounting xtureThe computer can be attached to a wall, swing arm, or other mounting xture.NOTE: This apparatus is intende
Installing a security cableThe security cable displayed below can be used to secure the computer.NOTE: The security cable is designed to act as a dete
3 Hardware upgradesServiceability featuresThe computer includes features that make it easy to upgrade and service. No tools are needed for most of the
Removing the computer access panelTo access internal components, you must remove the access panel:1. Remove/disengage any security devices that prohib
7. Slide the access panel forward, and lift it o the computer (2).NOTE: Your computer model may look slightly dierent from the illustrations in this
© Copyright 2017 HP Development Company, L.P.Windows is either a registered trademark or trademark of Microsoft Corporation in the United States and/o
Replacing the computer access panelOn computer models with a cover lock switch on the rear panel, place the access panel on the computer and slide it
Upgrading system memoryThe computer comes with at least one small outline, dual in-line memory module (SODIMM). To achieve maximum memory support, you
Populating memory module slotsThere are two memory module slots on the system board, with one slot per channel. The sockets are labeled DIMM1 and DIMM
Installing a memory moduleCAUTION: You must disconnect the power cord and wait approximately 30 seconds for the power to drain before adding or removi
7. Locate the memory modules on the system board.8. To remove a memory module, press outward on the latches (1) on each side of the memory module, and
10. Tilt the fan down, and then press the fan down until the it clicks into place.CAUTION: Avoid pulling the fan cable.11. Replace the access panel.Fo
Removing a hard driveNOTE: Before you remove the old hard drive, be sure to back up the data from the old hard drive so that you can transfer the data
Installing a hard driveNOTE: Before you remove the old hard drive, be sure to back up the data from the old hard drive so that you can transfer the da
6. Reconnect external devices, plug in the power cord, and then turn on the computer.7. Lock any security devices that were disengaged when the access
c. Lift the fan out of the chassis (3).9. To remove the hard drive cage, remove the three screws (1) securing the hard drive cage to the chassis.10. L
About This BookThis guide provides basic information for upgrading the HP Desktop Mini Business PC.WARNING! Text set o in this manner indicates that
11. Locate the solid-state drive on the system board.12. Remove the screw securing the solid-state drive to the system board (1).13. Grasp the solid-s
17. Press the solid-state drive down to the system board and use the included screw (3) to secure the solid-state drive.18. Set the hard drive cage (1
c. Connect the fan plug to the system board (3).21. Align the hard drive guide screws with the slots on the hard drive cage, press the hard drive down
Replacing the WLAN module1. Remove/disengage any security devices that prohibit opening the computer.2. Remove all removable media, such as a USB ash
c. Lift the fan out of the chassis (3).9. Remove the three screws (1) securing the hard drive cage to the chassis.10. Lift the hard drive cage (2) out
11. Locate the WLAN module on the system board.12. Disconnect both antenna cables (1) from the WLAN module.NOTE: You may need to use a small tool, suc
18. Match the label on each antenna cable to the corresponding connector on the WLAN module and attach the antennas (3) to the connectors.19. Set the
c. Connect the fan plug to the system board (3).22. Align the hard drive guide screws with the slots on the hard drive cage, press the hard drive down
Installing an external antennaInternal WLAN antennae are standard. If the computer is to be installed in a metal kiosk or other enclosure, you may wis
c. Lift the fan out of the chassis (3).9. Remove the three screws securing the hard drive cage to the chassis (1).10. Lift the hard drive cage out of
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11. Locate the WLAN module on the system board.12. Disconnect the internal antennae from the WLAN module.For instructions, see Replacing the WLAN modu
16. Feed the external antenna cable through each hole and screw the antenna into position.17. Connect the external antenna cables to the WLAN module.1
c. Connect the fan plug to the system board (3).21. Align the hard drive guide screws with the slots on the hard drive cage, press the hard drive down
Replacing the batteryThe battery that comes with the computer provides power to the real-time clock. When replacing the battery, use a battery equival
7. Slide the drive back until it stops, and then lift the drive up and out of the cage (2).8. If your model is an EliteDesk 800 65W, remove the second
10. Lift the hard drive cage (2) out of the chassis.11. Locate the battery and battery holder on the system board.NOTE: You may need to use a small to
13. Slide the replacement battery into position, positive side up. The battery holder automatically secures the battery in the proper position.14. Set
18. Rotate the hard drive latch down to engage the hard drive (2).19. Replace the computer access panel.20. If the computer was on a stand, replace th
Synchronizing the optional wireless keyboard and mouseThe mouse and keyboard are synchronized at the factory. If they do not work, remove and replace
4.5.NOTE: If the mouse and keyboard still do not work, then remove and replace the batteries. If the mouse and keyboard are still not synchronized, th
Table of contents1 Product features ...
A Electrostatic dischargeA discharge of static electricity from a nger or other conductor may damage system boards or other static-sensitive devices.
B Computer operating guidelines, routine care and shipping preparationComputer operating guidelines and routine careFollow these guidelines to properl
Shipping preparationFollow these suggestions when preparing to ship the computer:1. Back up the hard drive les to an external storage device. Be sure
C AccessibilityHP designs, produces, and markets products and services that can be used by everyone, including people with disabilities, either on a s
IndexAaccess panelremoval 12replacement 14accessibility 47antenna connector, external 4, 5antenna cover 4, 5audio-out (headset)/audio-in (microphone)
solid-state drive 22WLAN module 27RJ-45 (network) jack 4, 5Ssecondary fan, removing 22, 27, 32, 38secondary fan, replacing 25, 30, 35, 40security cabl
Appendix A Electrostatic discharge ...
1 Product featuresStandard conguration featuresFeatures may vary depending on the model. For a complete listing of the hardware and software installe
Front panel components (EliteDesk 800 and ProDesk 600)NOTE: Your computer model may look slightly dierent from the illustration in this section.Item
Front panel components (ProDesk 400)NOTE: Your computer model may look slightly dierent from the illustration in this section.Item Icon Component Ite
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