20
CPU Installation
Installing the Retention Mechanism
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NOTE
To install the retention mechanism, you need a Phillips (#2 bit) manual torque
screwdriver capable of a 6.0 in.-lb. ± 1.0 in.-lb. (0.678 N-m ± 0.113 N-m) setting. The
screwdriver also must have a shaft longer than 2 inches.
To install the retention mechanism, follow these steps:
1. Locate SIot 1 (A) and the four attachment studs (B) on the motherboard.
2. To position the mechanism (C), orient it as shown above. The tab (D) on the
connector fits into a notch in the base of the mechanism. When properly seated, the
base of the mechanism is flush with the motherboard.
CAUTION
Over tightening the captive nuts on the retention mechanism can damage the
motherboard. Tighten the captive nuts (E) to no more than 6.0 in.-Lb. ± 1.0 in.-lb.
(0.678 N-m ± 0.113 N-m).
3. Finger tighten all four captive nuts to make sure they start correctly on the threads of
the attachment studs.
4. To secure the mechanism, tighten the captive nuts with the torque screwdriver to no
more than 6.0 in.-Lb. ± 1.0 in.-lb. (0.678 N-m ± 0.113 N-m).
