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Removing
the system board
To remove the
system board:
- Turn off
the HMC and any attached devices, and disconnect all power cords.
- Remove the
cover. (Refer to Removing
and Replacing the Cover.)
- Remove all
riser card assemblies and adapters. (Refer to Removing
and Replacing the Riser Card Assembly and Removing
and Replacing the Adapter.)
- Disconnect
all cables from the system board. Make a list of each cable as
you disconnect it. You can then use this as a checklist during
system board installation.
- Remove all
heat sinks and microprocessors, and set them aside on a static-protective
surface for reinstallation (Refer to Removing
and Replacing the Microprocessor and Heat Sink.)
- Remove the
memory modules and set them aside on a static-protective surface
for reinstallation. (Refer to Removing
and Replacing the Memory Module (DIMM.)
Start
the video ...
- Remove
two air baffles from the system board. (If one was previously
removed, remove the remaining air baffle. (Refer to Removing
and Replacing the Air Baffle.)
- Disconnect
the power-supply backplane. Slide it to the side and set it out
of the way. (Refer to Removing
and Replacing the Power-supply Backplane.)
- Remove the
six screws on the system board that secure the system board to
the chassis.
- Remove the
four hex standoff screws from the serial connector and the video
connector at the rear of the HMC.
- Lift
the system board slightly so that it disengages from the locator
pin.
- Slide the
system board slightly toward the front of the HMC.
- Lift up the
left side of the system board.
- Lift the
rest of the system board and carefully remove it from the HMC,
being careful not to disturb any surrounding components.
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