NEC Express5800 Series User Manual page 63

Chapter 2 Preparations
7. Tighten the heat sink screws (4 PCs) with a T-30 Hexalobular driver in the following order (1 → 2 → 3 →
4) to secure.
8. Make sure that the heat sink is installed on a level with the motherboard.
9. Install an additional fan unit provided with additional CPU kit.
Remove the fan blank cover from the fan bay.
Note
● If the heat sink is not level, remove it, and then install it again.
The following probably causes the heat sink not to be level:
– The CPU is not positioned correctly.
– All screws are not completely tightened.
Do not move the secured heat sink.
●
Express5800/R120h-2E User's Guide
1. Installing Internal Optional Devices
63