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What to Do:

This Fix-It is divided into four main topics (1) Logic board, (2) PCI slots, (3) Processors and processor upgrades, and (4) Memory.

TAKE NOTE — Make Preliminary Checks

If you suspect a hardware problem that requires opening up your Mac, there are a few things you should check before you potentially waste your time:

  1. Make sure all cables are plugged in tightly and in their correct port.

  2. Make sure devices are connected to an outlet and that, if the outlet is connected to a wall switch, the wall switch is on.

  3. If you have a surge suppresser, make sure the fuse is reset.

  4. Make sure a device's on/off switch is on.



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