TYAN THUNDERBOLT Manual page 26

Chapter 2
Board Installation
To attach the retention module, place
the motherboard on a flat surface.
Locate the key pin on one end of the
CPU slot on the board. Then carefully
line up the key notch on the retention
module with the key pin on the CPU slot
(the key pin on the CPU slot indicates
the correct orientation of the CPU) See
Figure 2-8.
Figure 2-9
Installing the CPU with Active Cooling
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 2-10). This clicking sound indicates
that the CPU is fully locked into the retention module. If you
have an active cooler, you will also need to connect the CPU's
cooling fan cable to the cooling fan power connector on the
board.
Locate the cooling fan connector (e.g. FAN1) on the mother-
board. Plug the CPU's cooling fan cable into the cooling fan
connector on the board. There will be a plastic clip assembly
similar to that of the ATX power connector that will force you
to connect the fan cable correctly (see Figure 2-11 on the following page).
Figure 2-8 - Pentium II Slot Connec-
tor and Key Pin
Drop the retention module (Figure 2-9) down over
the CPU slot 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 mother-
board.
26
Figure 2-10
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