Mac Pro keeps rebooting

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Level 1

9 points

Mac Pro keeps rebooting

Hello,

I'm hopping someone has seen this issue before and give suggestions in how to resolve it. I have the following Mac Pro and it keeps rebooting.

I was able to take a pic of the error on the screen. I'm guessing my CPU has gone bad?

I was able to reinstall the OS and it seem to be stable for about 15 min before it reboots. The screenshot above was when I powered the Mac on from overnight.

Thanks for the feedback.

Mac Pro, Mac OS X (10.7), 8-core,16GB,6TB,ATi 5870,Quadro FX

Posted on Nov 12, 2015 5:27 PM

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Answer 1

BDAqua

Level 10

239,393 points

Nov 12, 2015 6:16 PM in response to calipvp

Possibly heat related, have you blown the dust out lately?

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Answer 2

calipvp Author

Level 1

9 points

Nov 23, 2015 9:55 PM in response to BDAqua

Hello BDAqua,

Thanks for the reply... I have blown out the dust and it still reboots. I've changed out the memory and booted up without the video card installed and it still does the samething.

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Answer 3

calipvp Author

Level 1

9 points

Nov 23, 2015 10:40 PM in response to BDAqua

I can leave it powered off overnight a still get the error on the first boot. Could it be dust? Could it be dust by the cpu?

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Answer 4

lllaass

Level 10

210,417 points

Nov 24, 2015 12:59 AM in response to calipvp

I would say more likely the graphics card. What yo see on the screen during bootup is due to the EFI on the graphics card. It could be because of the kernel extension being loaded when it panics is graphics related that is a possibility.

What graphics card is installed?

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Answer 5

calipvp Author

Level 1

9 points

Nov 24, 2015 7:57 AM in response to lllaass

I have an ATi 5870 installed. In my testing I enabled remote desktop, connected to my Mac via VNC after powering down and removing the video card and it still rebooted on me. I replaced all the ram in it and it still rebooted. I've replace all of the hard drives and it still rebooted on me. The only thing I have not replace are the logic boards and the cpus and the power supply.

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