Specifications

5–6 Upgrading the AlphaPC 164
Subject to Change – 17 January 1997
Increasing Microprocessor Speed
2. Lift the ZIF socket actuator handle to a full 90° angle.
3. Ensure that all the pins on the microprocessor package are straight.
4. The ZIF socket and microprocessor are keyed to allow for proper installation.
Align the microprocessor, with its missing AD01 pin, with the corresponding
plugged AD01 position on the ZIF socket. Gently lower into position.
5. Close the ZIF socket actuator handle to its locked position.
6. Install the heat sink and heat sink fan as directed in the following steps. A heat
sink/fan kit is available from the vendor listed at the beginning of this procedure.
Refer to Figure 5–1 for heat sink and fan assembly details.
Figure 5–1 Fan/Heat Sink Assembly
Alpha 21164
LJ04412A.AI4
Heat Sink, with Fan
Mounting Holes
Nut, Hex, 1/4-20, 2011-T3
Aluminum, 0.438 in Across
Flats, Qty 2
Torque to 20 +/- 2 in-lbs
Clip, Heat Sink/Chip/Fan
Thermal Pad
Guard, Fan
Screw, 6-32 x 0.875 in
Qty 4
Fan