148 Chapter 4
Function Board Failure
If the Function Board fails, perform the following actions one at a time to correct the problem. Do not replace
a non-defective FRUs:
Thermal Unit Failure
If the Thermal Unit fails, perform the following actions one at a time to correct the problem. Do not replace a
non-defective FRUs:
Start
Check
function /B to
M/B FFC
Re -assemble
the function /B
FFC to M/B
OK
NG
Check
function /B
and FFC
OK
Swap The
function /B
OK
NG
Swap M/B
Start
Check
function /B to
M/B FFC
Re -assemble
the function /B
FFC to M/B
OK
NG
Check
function /B
and FFC
OK
Swap The
function /B
OK
NG
Swap M/B
START
Fan power
wire well
connected?
Connect it wellNo
Fan OK? No
Replace thermal
module
No Seat it well
No
Replace
CPU
Replace M/B
CPU
heatsink well
seated?
CPU OK?