Introduction

The Macintosh IIsi has a case fan mouted on inside back of the computer case.

  1. The fan recieves power from two contacts on the logic board and has no connector.
    • The fan recieves power from two contacts on the logic board and has no connector.

  2. In all of the years that I have worked on this machine, I have found no good way to remove the fan.
    • In all of the years that I have worked on this machine, I have found no good way to remove the fan.

    • The best way to start, is to push in here on the side of the fan.

    • Being careful not to exert too much force, try to push in, and wiggle the fan outward as such. (2nd Photo)

    • You can now lift the fan all the way out, and remove it.

    • The Fan Power Contacts on the Logic Board:

Conclusion

To reassemble your device, follow these instructions in reverse order.

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Chris Green

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