Sun Microsystems Netra X4200 M2, Руководство по обслуживанию

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82 Netra X4200 M2 Server Service Manual • May 2007
Note – The heatsink is not symmetrical and it must be aligned before you place it
on the CPU. Note that the half of the Sun Microsystems logo imprinted on the top of
the heatsink will create a complete logo when correctly aligned with the adjacent
heatsink.
4. Lower the heatsink onto the CPU, aligning the mounting bolts with their holes
on the motherboard.
5. Alternately tighten the four heatsink mounting screws 180-degrees at a time
until each spring is completely compressed.
Replacing the Motherboard Assembly
Removing the Motherboard Assembly
1. Prepare the server for motherboard assembly removal. See:
■
“Powering Off the Server” on page 28
■
“Disconnecting Cables From the Server” on page 29
■
“Removing the Server From the Rack” on page 30
■
“Performing Antistatic Measures” on page 31
2. Remove the following components:
■
Top cover – “Removing the Top Cover” on page 33
■
PCI tray – “Removing the PCI Tray and PCI-E Ribbon Cables” on page 34
■
Cable hold-down bracket – “Removing the PCI-E Cable Hold-Down Bracket”
on page 36
■
Cables for PCI-E – “Removing the PCI Tray and PCI-E Ribbon Cables” on
page 34
■
DIMM/CPU duct – “Removing the DIMM/CPU Duct” on page 68
■
System Fan assembly – “Removing the System Fan Assembly” on page 54
■
DIMMs – “Removing a DIMM” on page 71
■
Alarm board – “Replacing the Alarm Board” on page 103
■
Graphics Redirect and Service Processor (GRASP) board – “Removing the
GRASP Board” on page 66 .