Intergraph DHAF02430, Справочное руководство системы

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To upgrade a dual processor system:
1. Open the base unit and remove the necessary parts as described in Chapter 1.
NOTE If PCI option boards are installed, remove to access the quad processor sockets.
2. Remove the P6 bus termination card. The processor module will be installed in this location.
3. Align the processor module with the sockets and carefully insert the module.
4. Press the processor module firmly into the sockets.
5. Remove the left VRM.
6. Secure the processor module with screws supplied in the kit.
7. Install the left VRM.
8. Install any PCI option boards and close the base unit.
9. Return the P6 bus termination card to the Intergraph Repair Depot.
Adding Processors to MSMT378
The MSMT378 system board allows you to upgrade the system from single to dual processors, and
from Pentium Pro processors to Pentium II processors.
Single to Dual Upgrade
To install a new processor module:
1. Open the base unit and remove the ISA cards.
2. Set the frequency, if necessary, for the new processor by adjusting jumpers J47 through J50.
Refer to Chapter 6, “System Board MSMT378,” for more information.
3. Align the new processor module over the S1 slot and firmly press it down into the slot.
4. 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.
5. Reinstall the ISA cards and close the base unit.
Pentium Pro to Pentium II Upgrade
The Pentium Pro and Pentium II processors for the MSMT378 system board are housed in plastic
processor modules, which have heat sinks attached to one side. When a Pentium II module is
installed into an S1 slot, the heat sinks are supported at the bottom by a black plastic bar, which runs
between the two bottom-most rows of heat sink fins. The support bar is connected to a support
assembly via four posts.
WARNING Setting processor voltage incorrectly may destroy the processor! Refer to Chapter 6, “System
Board MSMT378,” for details.
To upgrade Pentium Pro module with Pentium II module:
1. Open the base unit and remove ISA cards if installed.
2. Remove the top section of the heat sink support, if necessary. The plastic support bar has a tab
on each end. Press both tabs inward, towards each other, while using a pulling motion to pull the