Replacing A Processor - Desktop Model; Power Supply Removal - Desktop Model - IBM 2254 Hardware Maintenance Manual

Replacing a processor - Desktop Model

Power supply removal - Desktop Model

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IBM : Hardware Maintenance Manual
Attention: When you handle ESD-sensitive devices, take precautions to avoid
damage from static electricity. For details on handling these devices, see "Handling
electrostatic discharge-sensitive devices" on page 204.
1. Review the safety precautions listed in "Safety information" on page 201.
2. Turn off the system and peripheral devices and disconnect all external cables and
power cords; then, remove the cover (see "Removing the cover - desktop model"
on page 34 for details).
3. Push down on the retainer clip, and at the same time, use a flat bladed
screwdriver to carefully pry the metal loop from under the hook attaching the
fansink to the processor.
4. Carefully remove the other metal loop from the hook attaching the fansink to the
processor. Lift up and remove the fansink.
Note: Once you remove the heat sink from the microprocessor, you must replace
it with a new device.
5. Pull out and lift up the release lever and remove the microprocessor from the
connector. Store the microprocessor in a static-protective bag for possible future
use.
1. Remove the cover. See "Removing the cover - desktop model" on page 34.
2. Remove the four screws that hold the power supply to the back of the chassis.
3. The power supply is attached to the base of the chassis by a latch on the front.
Slide the power supply forward to dislatch if from the chassis.
4. Lift out the power supply.