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M o t h e r b o a r d
11. Unplug the two SCSI interface cables from the connectors at the
bottom of the motherboard.
12. Using an M5 socket, release the five busbar connections at the base of
the motherboard.
13. Now remove 21 screws which secure the board to the centre spine of
the server, as shown:
Figure 8-5 Motherboard Securing Screws
Caution
Caution
When refitting the motherboard, due to the very high operating frequencies of
modern systems, it is extremely important that all of the mounting screws are
refitted to ensure effective grounding to the server metalwork over the whole
board area.
Lift the motherboard gently off the support lug at the top right corner in the
electronics chamber and place on a suitable antistatic surface.
Ports sub-plate
If the motherboard is being replaced, the metal sub-plate supporting and
identifying the rear ports must be removed to be fitted to the new
motherboard.
Carefully remove the port fixing bolts and lift the plate clear.
8/4
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