Figure 13
Pentium II Slot Connector and Key Pin

Active

Passive

Figure 11

Figure 12

Installing CPU Retention Modules

Installation of a Pentium II processor requires a CPU retention module, which is first secured onto the motherboard.

To attach the retention module, place the motherboard on a flat surface. Locate the key pin on one end of the Pentium II slot on the board. Then carefully line up the key notch on the

retention module with the key pin on the Pentium II slot (the key pin on the Pentium II slot indicates the correct orientation of the CPU).

Drop the retention module (Figure 14 on the following page) down over the Pentium

IIslot so that the retention module sits flat against the motherboard. Tighten the screws in a clockwise manner

to secure the module to the board. Warning: Do not overtighten the screws as you

may damage the module and/or the motherboard.

Installing the Active Processor

When the retention module is securely installed, you are ready to plug in the CPU. Press down firmly on the CPU until you hear a “click” (see Figure 15 ). This

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Tyan Computer InterServe 90 manual Installing CPU Retention Modules, Installing the Active Processor, Active Passive