Intergraph TD-300 Maintenance Manual - page 72

58           Chapter 4 - Maintaining the System

18.

Install the CPUs onto the new system board.  The CPU sockets are

keyed to ensure proper insertion.  For the secondary CPU, lower the

lever to lock the CPU in the socket.

19.

Replace the CPU brace for each CPU.  Ensure each end of the brace

fully engages the socket tabs.

20.

Set the CPU frequency jumpers on the new system board to the same

configuration as the old system board.  The CPU jumpers are the eight

jumpers between the VRMs.

21.

Remove the Voltage Regulator Modules (VRMs) from the system

board and install them on the new system board.  Press the tabs on

either side of the VRM to disengage the VRM from the socket.

Ensure the tabs lock into the slots when installing the VRMs on the

new system board.

22.

If a WRAM expansion module is installed, remove the module and

install it onto the new system board.

Brace

  VRM Jumpers

  VRM Socket Tabs

  Heat Sinks

VRM

    CPU

 ZIF Socket