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checkstop

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    PowerMac G5 Quad can't boot, overtemp and checkstop led light up

    I have a PowerMac G5 Quad I install a pair of 2GB DDR2-800 Corsair XMS2 Ram in the right slot (mirrored centermost) At first, I got 3 beep and the fan start to spin fast After some re-seat and change ram module, I got the boot chime But a few second after the chime, overtemp led bright up...
    • giathyex
    • Thread
    • checkstop overtemp powermac powermac g5 powermac g5 cooling quad
    • Replies: 12
    • Forum: PowerPC Macs
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