IBM 8301, 8309, 8312 Front bezel Types 8307, 8308, 8310, 8311, 8314, Replacing a microprocessor

1.Turn off the computer and peripheral devices and disconnect all external cables and power cords; then, remove the cover. See “Removing the cover Types 8301 and 8302” on page 71.

2.Remove the 2 screws holding the CD cage in place and pull the cage out.

Front bezel Types 8307, 8308, 8310, 8311, 8314, and 8315

To remove the front bezel, do the following:

1.Turn off the server and peripheral devices and disconnect all external cables and power cords.

2.Push in on the bezel release arm (the blue arm sticking out of the back of the chassis) to detach the bezel from the chassis.

3.Pull the bezel off the front of the computer.

Replacing a microprocessor

To replace a microprocessor on any of the machine types, do the following:

1.Turn off the computer and peripheral devices and disconnect all external cables and power cords; then, remove the cover. See “Removing the cover” on page 40.

2.Remove the CD drive cage.

3.Remove the rear section of the power source. See “Power supply removal” on page 77.

4.Loosen the two captured screws that hold the fansink in place, and pivot them off of the fansink notches.

5.To remove the fansink from the processor, twist the fansink to break the seal formed by the thermal grease and remove.

Note: If the thermal grease seal cannot be broken, you may want to start up

the system to heat the processor and loosen the thermal grease.

72Hardware Maintenance Manual