NEC Express 5800 User Manual page 325

8-24 System Upgrade
13.
Check to see if the heat sink is mounted parallel with the motherboard.
IMPORTANT:
If the heat sink is not parallel to the motherboard, dismount and remount it. You
cannot mount the heat sink correctly due to the following:
- CPU is not mounted correctly
- The heat sink clip is not engaged correctly.
Do not hold the fastened heat sink to move the CPU.
14.
Attach the CPU air duct.
TIPS:
Check to see if the air duct is attached securely with its projected parts inserted
into the chassis.
15.
Install the CPU module.
16.
Connect the power cord.
17.
Press the POWER switch to power on the module.
18.
Verify that POST displays no error messages.
If POST displays an error message, take a note on the massage and see the POST error
messages listed in Chapter 7.