Intergraph TD-x20 System Reference Manual page 33

To install a new processor module:
1. If necessary, set the frequency for the new processor by adjusting jumpers J47 through
J50. Refer to Chapter 5, "System Board Jumpers," for more information.
2. Align the new processor module over the S1 slot and firmly press it down into the slot.
3. If necessary, replace the top section of the heat sink support. Gently push the plastic
support bar toward the four posts on the heat sink support assembly, until the bar snaps
into place.
4. Re-install the peripheral brace and, if necessary, the floppy disk drive.
Voltage Jumper J19
Heatsink Support
holes
J48 Frequency
J47 Jumpers
J50
J49
Voltage
Jumper J39
Heatsink Support
holes
27