IBM IntelliStation A Pro 6224 User Manual page 72

10. Press down on the barcode label and the indicated corner to make sure that
11. Remove the protective cover, tape, or label from the surface of the
58
IntelliStation A Pro Type 6224: User's Guide
Alignment
holes
Press points
Alignment
pins
System
board
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.
9. Tighten the four screws on the fan-sink socket; then, tighten the two screws on
the corners of the microprocessor board to secure the microprocessor board to
the system board.
Attention: When you tighten the screw on the microprocessor board that is
closest to the rear fan in computer, you might have to push the rear fan slightly
to the side.
the microprocessor board is firmly seated in the connectors on the system
board.
microprocessor socket, if any is present.
Option screws
(captive)
Microrpocessor
board
Short
screws
Second-microprocessor
connectors