Installing A Voltage Regulator Module (Vrm) - DEC Digital PC 3500 System Reference Manual

Inside Your Computer
9. Connect the fan assembly to the backplane.
10. Set all appropriate switch settings on the main logic board.
Refer to Appendix A, "Technical Specifications," for jumper and switch location settings
with the "Processor Clock Speed Switch Settings" table.
11. Replace the outside cover.
12. Connect all external devices and restore power.

Installing a Voltage Regulator Module (VRM)

If you need to change the VRM to match the processor type, proceed as follows:
1. Turn off your computer and monitor.
2. Disconnect all external devices, ac power, and monitor power.
3. Remove the outside cover.
4. Push down on the two plastic clips to release the existing VRM from its
socket.
5. Make sure the socket on the VRM is aligned with the pins on the main logic
board connector.
Install the new VRM making sure the two plastic clips fully snap into place.
6. Replace the outside cover.
7. Connect all external devices and restore power.
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