Cpu Card (Model 39H) - IBM 7012 300 Series Installation And Service Manual

CPU Card (Model 39H)

Note: Refer to "Handling Static-Sensitive Devices" before removing or installing the CPU
Removal
1. Set the power switches of the attached devices to Off.
2. Set the power switch of the system unit to Off.
3. Set the key mode switch to the Service position.
4. Remove the top cover by loosening the two thumbscrews located on the back of the
system unit. Slide the cover to the rear of the system unit, and then lift it straight up.
5. Remove the CPU support bracket.
6. Pull up on the CPU card and the voltage regulator card at the same time until you can
unplug the voltage regulator card from the CPU card. Once you have unplugged the
voltage regulator card from the CPU card, push the voltage regulator card back into
place.
CPU Support Bracket
Voltage
Regulator
Card
card in this system.
CPU Card
Heat Sink
Removal and Replacement Procedures
3-31