Digital Equipment AXPpci 33, Design Manual

Page: 73 / 98

Installation and Handling Instructions
D.2.6 Heatsink/Fan Assembly Instructions
Figure D–2 shows the DECchip 21066 integrated fan/heatsink assembly.
Use of the thermal pad with the heatsink is recommended.
Install the heatsink assembly onto the DECchip 21066 processor before
you install the processor into the ZIF socket. This prevents ZIF damage
due to torque forces placed on the ZIF by installation of the nuts. You
must install the heatsink onto the DECchip 21066 before you install the
fan onto the heatsink.
Figure D–2 Fan/Heatsink Assembly
MR-6403-AI
D.2.7 Installation into ZIF Socket
1 Observe antistatic handling precautions.
2 Lift the ZIF socket actuator handle to a full 90° angle.
3 Make sure that all pins on the Alpha processor are straight.
4 The ZIF socket and Alpha processor are keyed to allow for proper
installation.
5
Align the Alpha processor, with its missing A01 pin, with the
corresponding plugged A01 position on the ZIF socket. Gently lower
the processor into position.
6 Close the ZIF socket actuator handle to its locked position.
D–3