07-05-2007, 11:29 AM

My 6 month old Mac Pro has died. Does anyone know what it means when the power light cycles on and off at at steady rate? There is no short / long interval, this is a steady cadence. I can't boot, only the cooling fan comes on at high speed and remains at at this speed. Nothing else happens. I will be taking it to the Mac store next week. BTW this is a Quad Core machine @ 3gh / 4gig ram.

07-05-2007, 02:36 PM

Originally Posted by ditto

My 6 month old Mac Pro has died. Does anyone know what it means when the power light cycles on and off at at steady rate? There is no short / long interval, this is a steady cadence. I can't boot, only the cooling fan comes on at high speed and remains at at this speed. Nothing else happens. I will be taking it to the Mac store next week. BTW this is a Quad Core machine @ 3gh / 4gig ram.

Sounds like a hardware failure of some sort. Have you installed any new memory or change the hardware recently? If so, check your memory, reseat it and check all connectors.

07-05-2007, 02:59 PM

Originally Posted by cwa107

Sounds like a hardware failure of some sort. Have you installed any new memory or change the hardware recently? If so, check your memory, reseat it and check all connectors.

I agree. I have already done all that you and the Mac manual suggest with no joy. I was hoping someone else has had the same problem and could shed some light on the issue.

07-20-2007, 06:47 PM

Originally Posted by ditto

I agree. I have already done all that you and the Mac manual suggest with no joy. I was hoping someone else has had the same problem and could shed some light on the issue.

The problem was a bad video card. Apple store near me took 1 week to replace it.