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Basics Logic Board Connectors - 6
Important:
The WS 9150/120 logic board has a
thermoelectric cooling device that attaches directly to the
microprocessor's heatsink. You can identify this cooling
device by the black and red wires that run to the right of the
heatsink and plug into the logic board via a keyed connector.
This device is not a serviceable item. Do not unplug this
device or you may damage the logic board. Also note that the
order of the cache and ROM SIMMs may vary. Be sure to
correctly identify the cache SIMM and remove it before
returning the logic board to Apple for repair. Do NOT
remove the ROM SIMM before returning the logic board.