NEC EXP805 User Manual page 72

Chapter 2 Preparations
(2) Insert a 1/4-inch wide flat-blade screwdriver into the release slot.
(3) To release the adhesion of the thermal grease, gently rotate the tool.
(4) Unlatch the remaining corners of the processor assembly.
(5) Separate the processor assembly from the heatsink.
The processor remains attached to the carrier.
6. Using alcohol, remove thermal grease adhering to the processor.
Before new thermal grease adheres, dry the alcohol.
7. Remove the dust cover of the high-performance heat sink.
8. Align the pin mark 1 on the processor frame with the pin mark 1 on the high performance heat sink, gently
press the four corners of the processor frame from the top securing the heat sink latch on the high
performance heat sink and attach.
Heat sink latch
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Note To avoid damage to the processor, insert the tool between the processor and the
heatsink base. The opening in the carrier provides access to a gap between the
processor heatsink spreader and the heatsink base.
Note Do not touch the point of contact of the processor.
Pin 1 mark on heat sink
Express5800/R120h-2M (2nd-Gen) User's Guide
1. Installing Internal Optional Devices
Heat sink latch
Pin 1 mark on frame