IBM IntelliStation A Pro 6217, Руководство пользователя

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Note: For clarity, the illustrations in this procedure show only the system board.
You will not remove the system board from the computer to perform this procedure.
1. Read the safety information beginning on page v, and the guidelines in
“Handling static-sensitive devices” on page 34.
2. Turn off the computer and all attached devices (see “Turning off the computer”
on page 19).
3. Disconnect all external cables and power cords; then, remove the side cover
(see “Removing the side cover” on page 39.)
4. Remove the support bracket (see “Removing and installing the support
bracket” on page 40).
5. Remove the rear adapter-retention bracket.
6. Touch the static-protective package containing the microprocessor board to
any unpainted metal surface on the computer. Then, remove the
microprocessor board from the package.
Alignment
holes
Alignment
pins
Press points
Short
screws
Second-microprocessor
connectors
System
board
Microrpocessor
board
Option screws
(captive)
7. Remove the six indicated screws from the system board.
8. Position the alignment holes in the microprocessor board over the two plastic
alignment pins on the system board; then, lower the microprocessor board
onto the alignment pins.
Notes:
a. When lowering the microprocessor board onto the two plastic alignment
pins, it might help to hold it by one of the DIMM slot tabs and one of the
retention spring clips.
b. The screws on the microprocessor board are spring-loaded. When the
microprocessor board is correctly in place, the screws will stick straight
down and align with the six screw holes on the system board.
c. Make sure that the connectors on the underside of the microprocessor
board line up with the second-microprocessor connectors on the system
board.
Chapter 4. Installing options
59