Fujitsu Siemens Computers PRIMERGY TX150 S3 Service Supplement Manual page 35

Replacement routines Replacing the processor
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Figure 15: Removing the heat sink
Ê Loosen the four screws in a crossover pattern.
Ê Loosen the heat sink by turning it back and forth and then lift it out.
Ê Remove the residual thermal paste from the underside of the heat sink.
Ê Clean the underside of the heat sink using a lint-free cloth.
Service Supplement 29