Service Teardown: HP Z2 G8 Small Form Factor Workstation PC
How to replace the Access Panel.
Removal
Slide the release latch to the release position.
Using the handle on the rear edge of the access panel,
pull slightly disengage the retention hooks on the panel from the chassis.
Lift the access panel straight up and off the chassis and remove.
Replacement
Slide the retention tabs on the access panel into the cut outs in the chassis.
Slide the access panel toward the front of the unit until it is flush with the bezel and the release latch clicks.
How to replace the Optical Drive.
Before you begin: Remove the access panel.
Removal
Disconnect the power and data cables from the connectors on the rear of the optical drive.
Press on the blue drive release latch at the rear of the drive
and slide the drive out the front of the unit.
Replacement
Slide the drive into its drive bay through the front of the unit
until the blue release latch snaps into place.
Connect the power and data cables into the connectors on the rear of the drive.
How to replace the Front Bezel.
Before you begin: Remove the access panel.
Removal
Release the three retention tabs that secure the front bezel to the chassis.
Slightly lift the chassis and rotate the front bezel away from the connectors on the motherboard.
Slide the lower retention tabs on the front bezel off the chassis and remove.
Replacement
Toe the retention tabs on the lower edge of the front bezel onto the chassis
and rotate it into position over the connectors on the motherboard.
Press the upper edge of the front bezel toward the chassis until the retention tabs snap into place.
How to replace the Memory Module(s)
Before you begin: Remove the access panel, and front bezel.
Removal
Grasp the drive cage near the blue tab
and rotate the drive cage toward the front of the unit until it is fully open.
Push down and out on the memory slot latches to release the memory module.
Slide the memory module up and out of the memory slot and remove.
Replacement
IMPORTANT: When installing the memory module,
be sure to align the notch in the memory module
with the key in the memory module slot in the motherboard.
DO NOT install the memory at an angle or in a sloping direction.
It must be inserted straight into the connector.
Align the notch in the memory module with the key in the memory module slot on the motherboard
and insert the memory module.
Press down on the memory module until the memory slot latches lock
and the memory module is fully seated.
Rotate the drive cage toward the rear of the unit until it is fully seated.
How to replace the Wireless LAN Module
Before you begin: Remove the access panel and front bezel.
Removal
Grasp the drive cage near the blue tab
and rotate the drive cage toward the front of the unit until it is fully open.
Remove the P1 Phillips-head screw that secures the wireless LAN module to the chassis.
Slide the plastic bracket that covers the wireless LAN antenna connectors
off of the wireless LAN module and remove.
CAUTION! Use care when disconnecting the wireless LAN antenna cables from the wireless LAN module.
A damaged cable or connector can degrade performance.
Carefully disconnect the wireless LAN antenna cables from the wireless LAN module
by grasping the connectors with a small pair of needle nose pliers or tweezers.
Grasp the wireless LAN module by the edges and pull gently to remove it from the slot on the motherboard.
Replacement
Align the notch in the wireless LAN module with the key in the wireless LAN module slot on the motherboard.
At an angle, gently insert the wireless LAN module into the slot on the motherboard.
Reconnect the wireless LAN antenna cables to the wireless LAN module.
CAUTION! Use care when connecting the wireless LAN antenna cables from the wireless LAN module.
A damaged cable or connector can degrade performance.
Replace the plastic bracket that covers the wireless LAN antenna connectors.
Replace the P1 Phillips-head screw that secures the wireless LAN module to the chassis.
Rotate the drive cage toward the rear of the unit until it is fully seated.
How to replace the M.2 Solid State Drive
Before you begin: Remove the access panel, and front bezel.
Removal
Grasp the drive cage near the blue tab and rotate the drive cage toward the front of the unit until it is fully open.
Remove the P1 Phillips-head screw that secures the solid state drive to the motherboard.
Grasp the solid state drive by the edges and pull gently to remove it from the slot on the motherboard.
Replacement
IMPORTANT: Remove the heatsink from the old solid state drive
and install it onto the new solid state drive prior to replacement.
Align the notch in the solid state drive with the key in the solid state drive slot on the motherboard.
At an angle, gently insert the solid state drive into its slot on the motherboard.
Replace the P1 Phillips-head screw that secures the solid state drive to the motherboard.
Rotate the drive cage toward the rear of the unit until it is fully seated.
How to replace the SD Card Reader
Before you begin: Remove the access panel and front bezel.
Removal
Grasp the drive cage near the blue tab and rotate the drive cage toward the front of the unit until it is fully open.
Disconnect the SD card reader cable from the connector on the motherboard.
Remove the P1 Phillips-head screw that secures the SD card reader to the motherboard.
Slide the SD card reader off the edge of the motherboard and remove it from the chassis.
Replacement
Slide the SD card reader onto the edge of the motherboard.
Replace the P1 Phillips-head screw that secures the SD card reader to the motherboard.
Connect the SD card reader cable to the connector on the motherboard.
Rotate the drive cage toward the rear of the unit until it is fully seated.
How to replace the Speaker
Before you begin: Remove the access panel and front bezel.
Removal
Grasp the drive cage near the blue tab and rotate the drive cage toward the front of the unit until it is fully open.
Disconnect the speaker cable from the connector on the motherboard.
Remove the speaker cable from the routing channel on the chassis.
Remove the speaker from the two rubber stand-offs and remove it from the chassis.
Replacement
Place the speaker onto the two rubber stand-offs on the chassis.
Route the speaker cable thru the routing channel on the chassis.
Connect the speaker cable into the connector on the motherboard.
Rotate the drive cage toward the rear of the unit until it is fully seated.
How to replace the CMOS Battery.
Before you begin: Remove the access panel and front bezel.
Removal
Grasp the drive cage near the blue tab
and rotate the drive cage toward the front of the unit until it is fully open.
Carefully press the metal tab and release the CMOS battery
from the socket retention clips that secure it on the motherboard and remove.
Replacement
Carefully secure the CMOS battery under the socket retention clips on the motherboard.
Rotate the drive cage toward the rear of the unit until it is fully seated.
How to restore CMOS to Factory Settings
Before you begin: Remove the access panel and front bezel.
Steps
Press the CMOS button on the motherboard and hold it down for 5 seconds.
CMOS factory settings are now reset.
IMPORTANT: You will now need to enter system BIOS and reset the clock in BIOS after this procedure.
How to replace the Power Supply
Before you begin: Remove the access panel and front bezel.
Removal
Grasp the drive cage near the blue tab and rotate the drive cage toward the front of the unit until it is fully open.
Disconnect all power supply cables from the motherboard.
Remove the power supply cables from the retention clips on the chassis.
Remove the three Phillips-head screws that secure the power supply to the chassis.
Press the tab down and slide the power supply forward to release it from the retention clip on the chassis.
Remove the power supply from the chassis.
Replacement
Align the power supply with the retention clip on the chassis and lower it into place.
Slide the power supply back until the retention tab clicks into place.
Replace the three Phillips-head screws that secure the power supply to the chassis.
Route the power supply cables thru the routing clips on the chassis.
Connect all power supply cables to the motherboard.
Rotate the drive cage toward the rear of the unit until it is fully seated.
How to replace the System Fan Assembly
Before you begin: Remove the access panel.
Removal
Disconnect the fan cable from the connector on the motherboard.
Slide the fan assembly straight up to remove the tabs from the cut outs in the chassis.
Slide the fan assembly off the heatsink and remove.
Replacement
Slide the fan assembly over the heatsink and insert the tabs into the cut outs in the chassis.
Connect the power supply cable into the connector on the motherboard.
How to replace the Option Board.
Before you begin: Remove the access panel and system fan assembly.
Removal
Remove the two P1 Phillips-head screws that secure the option board to the motherboard.
Lift the edge of the option board to disconnect it
from the motherboard and slide it out of the cut out in the chassis.
Remove the option board.
Replacement
Slide the option board into the cut out in the chassis
and align the screw holes in the option board with the stand offs on the motherboard.
Press the option board into the connector on the motherboard.
Replace the two P1 Phillips-head screws that secure the option board to the motherboard.
How to replace the Heatsink Assembly
Before you begin: Remove the access panel and system fan assembly.
Removal
Disconnect the CPU fan cable from the connector on the motherboard.
Note: The heatsink has numbers adjacent to the following four screws.
Loosen the four captive T15 Torx-head screws that secure the heatsink over the processor in numerical order.
Lift the heatsink straight up and off the processor and remove it from the chassis.
Replacement
Using an alcohol swab, carefully remove the thermal grease from the heatsink and processor.
According to the individual specifications for your particular processor,
apply new thermal grease to the processor.
Align the screw holes on the heatsink with the stand offs on the motherboard
and lower the heatsink into position over the processor.
Tighten the four T15 Torx-head screws that secure the heatsink over the processor in numerical order.
Connect the CPU fan cable to the connector on the motherboard.
How to replace the CPU
Before you begin: Remove the access panel, system fan assembly, and heatsink assembly.
Removal
Press down to release the CPU load lever from its retention tab and pull it back.
Lift the load plate off the socket.
IMPORTANT: Identify the pin 1 triangle on the socket and CPU prior to removing the CPU.
IMPORTANT: When handling the CPU, do not touch the CPU contacts.
Carefully lift the CPU straight up and out of the socket.
Replacement
Align the pin 1 triangle on the CPU with the pin 1 triangle on the socket.
Carefully lower the CPU into position in the socket.
Swing the load plate down.
Lock the load lever under its retaining tab to secure the CPU in place.
How to replace the Motherboard
Before you begin: Remove the access panel, front bezel, expansion cards, wireless LAN module,
option board, system fan assembly, and heatsink assembly.
Removal
Disconnect all cables from the motherboard.
Remove the power supply cables from the routing tabs on the chassis.
Remove the eight T15 Torx-head screws that secure the motherboard to the chassis.
Carefully lift up on the front edge of the motherboard
and slide the rear external connectors out of the cut outs in the chassis.
Guide the motherboard out of the chassis and remove.
Replacement
Note: Before installing a new motherboard,
remove the all components from the old motherboard and install onto the new motherboard.
At an angle, slide the rear external connectors on the motherboard into the cut outs in the chassis
and lower the motherboard into position.
Replace the eight T15 Torx-head screws that secure the motherboard to the chassis.
Route the power supply cables through the routing tabs on the chassis.
Connect all cables to the connectors on the motherboard.
IMPORTANT: After motherboard replacement,
be sure to complete post-installation tasks as required that may include:
Verifying functionality of the computer
Updating the BIOS
Updating DMI and other settings
How to replace the Wireless Antennas.
Before you begin: Remove the access panel, front bezel, expansion cards, wireless LAN module,
option board, system fan assembly, heatsink assembly, and motherboard.
Removal
IMPORTANT: Make careful note of the routing of the wireless antenna cables for later replacement.
Guide the rear wireless antenna cable through the routing tunnel on the chassis.
Remove the rear wireless antenna cable from the routing channel on the chassis.
On the rear of the unit, release the rear wireless transceiver cover and slide it out of the chassis.
Remove the T15 Torx-head screw that secures the rear wireless antenna transceiver to the chassis.
Remove the rear wireless antenna transceiver from the alignment bump on the chassis
and guide the wireless antenna cable out of the cut out in the chassis.
On the front of the unit, remove the T15 Torx-head screw
that secures the front wireless antenna transceiver to the chassis.
Remove the front wireless antenna transceiver from the adhesive that secures it to the chassis
and guide the wireless antenna cable out of the cut out in the chassis.
Replacement
On the front of the unit, guide the wireless antenna cable into the cut out in the chassis
and use the alignment bump to place the front wireless antenna transceiver into position.
Replace the T15 Torx-head screw that secures the front wireless antenna transceiver to the chassis.
On the rear of the unit, guide the wireless antenna cable into the cut out in the chassis
and use the alignment bump to place the rear wireless antenna transceiver into position.
Replace the T15 Torx -head screw that secures the rear wireless antenna transceiver to the chassis.
Slide the rear wireless transceiver cover into the chassis and apply pressure to secure it into place.
Guide the rear wireless antenna cables through the routing channel on the chassis.
Guide the rear wireless antenna cable through the routing tunnel on the chassis.
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