To remove the riser card:
1. Remove the top cover.
2. Remove the system board.
3. Disconnect all cables from the front and back of the
riser card.
4. Remove the two top screws securing the riser card.
5. Remove the riser card from the chassis.
Power supply removal
Note
1. Make sure the power supply voltage switch is set
to the proper operating voltage; 115V or 230V.
To remove the power supply:
1. Remove the top cover.
2. Disconnect the power supply connectors.
3. Remove the four screws securing the power supply to
the chassis.
4. Move power supply inward, then lift out of the
chassis.
68 IBM PC 300/IntelliStation Vol 3 HMM