NEC Express5800/R120g-2M User Manual page 52

Chapter 2 Preparations
1. Installing Internal Optional Devices
9. Lightly push the CPU to the CPU socket, and close the plate.
10. Close the socket lever marked with " " to fix it.
" to fix it.
11. Close the socket lever marked with "
12. Put the heat sink on the CPU and temporarily tighten the four screws diagonally, and then tighten them
securely.
Make sure that the screw aligns with the screw hole. If not, the screw may damage the motherboard.
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2
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Express5800/R120g-2M User's Guide