Replacing The Heat Sink And Cpu - Sun Microsystems Ultra 27 Service Manual

Replacing the Heat Sink and CPU

Caution –
connection can cause shorting and component failure.
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Each cable connector on the motherboard is labeled to help you identify the cable to which it
should be connected.
Power off the workstation using the procedure described in the section,
1
Workstation"on page
Remove the left-side access panel using the procedure described in the section,
2
Left-Side Access Panel"on page
Gently lay the system on its right side on a stable, nonslip surface.
3
Remove and replace any cables that need to be replaced.
4
As you install each cable, connect one end to the appropriate connector, then route the cable
through the cable management straps before connecting the second connector.
Ensure that all cable routing is correct and that all of the cable connectors are properly seated.
5
Close the workstation and prepare for operation using the procedures described in the section,
6
"Closing the Workstation and Preparing for Operation"on page 34
Replacing the Heat Sink and CPU
Note –
service technicians.
Required tools:
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78 Sun Ultra 27 Workstation Service Manual • June 2009, Revision A
Do not force connectors. Connectors are designed to fit one way only. Forcing a
Front I/O board cables:
Audio cable
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USB cable
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IEEE 1394 cables
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Power button/LED cable
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HDD signal cable harness
30.
The CPU is a field replaceable unit (FRU) and should be replaced only by trained field
A long blade Phillips screwdriver (minimum six inches)
Antistatic wrist strap and mat
31.
"To Power Off the
"To Remove the