Processor Stack Motherboard - HP 9030 Service Manual

CAUTION
CAREFULLY HANDLE BOARD TO AVOID DAMAGE TO IT FROM
ELECTROSTATIC DISCHARGE OR OTHER CAUSES. HOLD BY
EJECTORS OR SIDE EDGES ONLY. DO NOT TOUCH EDGE CON-
NECTOR CONTACTS OR BOARD PLANES. IMMEDIATELY PLACE
BOARD IN ANTISTATIC BAG OR ON ANTISTATIC SURFACE.
Assembly Access
4-9
5. Remove boards in slots 5-12 by pulling out on ejectors to release it from stack motherboard
and sliding boards out of slots.
6. Loosen two slotted captive screws that hold clock board to stack motherboard.
7. Disconnect clock board from processor stack motherboard at inline connector.
8. Pull clock board straight out of motherboard and out of stack.
Reassembly Notes
When installing board, hold by ejectors and use side edge to move air
controller out of the way and onto the top of the board.
Insert board firmly in stack motherboard and push ejectors in to lock it
in place.
The clock board connector and mating motherboard connector are not
keyed; however, the clock board screws and motherboard holes do not
align unless proper connection is made.
Firmly tighten screws and thumbscrews on stack door and RFI shield to
prevent RFI radiation.
Processor Stack Motherboard
1. SET THE POWER SWITCH ON THE REAR PANEL TO THE "0" POSITION AND DIS-
CONNECT THE AC POWER CORD FROM THE WALL OUTLET.
2. Remove both front panels and the flip-top cover as previously described (HP 9040), or
remove front panel (HP 9030).
3. Remove the top cover from the System II enclosure as previously described.
4. From the front of the computer, remove the RFI shield by loosening the six thumbscrews.
5. Remove the stack door by loosening the two thumbscrews and the two #2 Pozidriv captive
screws that attach the door to the stack.
6. Disconnect the ribbon cable(s) from the lOP finstrate(s).
7. Disconnect the service panel cable from the SCM.
8. Remove the four #2 Pozidriv screws that attach the processor stack lid to the chassis.
CAUTION
PERFORM THE FOLLOWING STEP CAREFULLY TO AVOID
DAMAGING FAN CABLE OR CONNECTORS.