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robby818

macrumors 6502a
Original poster
May 2, 2007
587
6
My 2006 Mac Pro has a dying power supply. Seems like a pretty common problem. $300 seems to be the price for the PSU. Has anyone taken their older Mac Pro to Apple and had it done? I'll stop by the Pasadena store tomorrow during lunch but considering taking my Mac Pro to work if it isn't too much more than $300.
 
That seems to be the going price online. You may find one online for a little less or a little more. I would imagine Apple charging close to $500. It shouldn't be too difficult to replace on your own on that model. What happened that the PSU died?
 
Update: Apple doesn't sell parts to consumers and would not provide a quote unless I brought the machine in for an evaluation. I don't want to drag my Mac Pro in just to get a price on the power supply so I bought one off ebay and will take a risk that my diagnosis is correct. Symptoms are that the machine will at time not power on (usually right after shutting it down), sleeping results in shut downs. I considered just getting a new Mac Pro as this is five years old, but I think $250 is worth it to keep it going especially if I get around to doing a processor upgrade.

FYI, the power issues happened coincidentally around the time I replaced the x1900 video card with the nvidia 8800gt card under the replacement program. Maybe the extra draw tipped it over the edge?
 
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your symptoms could be a bad gpu not a bad power supply. If that is the case apple would owe you another gpu. bad gpu's can make psu and/or logic board look bad. before you do anything unplug and replug the gpu.
 
Update: Apple doesn't sell parts to consumers and would not provide a quote unless I brought the machine in for an evaluation.

Nope, Apple will only sell parts to registered Apple repair technicians.

The issue is that you can't install the part yourself without voiding the warranty, or, if not that, possibly causing damage to the machine. Apple only trusts registered technicians, which means they will only replace the part themselves.
 
Try to do the following. When your GPU is installed, try and set your Power Saving settings so that the power button can sleep your computer and so the computer will not go to sleep after a certain amount of time. Next, troubleshoot the computer by removing the GPU, booting, and allowing it to stay on and running for an extended period of time. After a few hours or whenever you think is good, see if it will remain in sleep mode without completely shutting down. Since we have no video, thats where pressing the power button to sleep the computer comes in handy. If it works fine without the GPU, I'd say its time to put an HD 5770/HD 5870 in there, I think they're compatible with the 2006 model Mac Pro. If not a new PSU is super easy to install.

Let us know the results!
 
Nope, Apple will only sell parts to registered Apple repair technicians.

The issue is that you can't install the part yourself without voiding the warranty, or, if not that, possibly causing damage to the machine. Apple only trusts registered technicians, which means they will only replace the part themselves.

That is unfortunate because paying a tech to do this repair on a five year old machine would be too expensive. The repair makes sense if I can do it myself but not if I have to pay someone to do it.
 
Try to do the following. When your GPU is installed, try and set your Power Saving settings so that the power button can sleep your computer and so the computer will not go to sleep after a certain amount of time. Next, troubleshoot the computer by removing the GPU, booting, and allowing it to stay on and running for an extended period of time. After a few hours or whenever you think is good, see if it will remain in sleep mode without completely shutting down. Since we have no video, thats where pressing the power button to sleep the computer comes in handy. If it works fine without the GPU, I'd say its time to put an HD 5770/HD 5870 in there, I think they're compatible with the 2006 model Mac Pro. If not a new PSU is super easy to install.

Let us know the results!


Yeah, sleep is still a little wonky even without the GPU. It shuts down most of the time instead of sleeping. I can't get it to consistently do the refuse to power on, there are some circumstances when it just refuses to power on but I have not been able to totally identify it. But the sense I got was that the power supply wasn't delivering enough power...i hear a click, the fans for a second and then nothing. The new power supply is in the mail, I'll report back on if it fixes it or if I just wasted $250.

UPDATE: Yep, power supply fixed my sleep issues for sure. Not sure about the start problems yet as I have only had it for a day. Unfortunately the cover on the power supply got bent during shipping. I swapped it with the cover from my old power supply. My 2006 mac pro has been getting a lot of neglected fixes this week- bluetooth antenna swap, sticking superdrive cover, and this bad PS. Feels like a new machine now. :)
 
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Yeah, sleep is still a little wonky even without the GPU. It shuts down most of the time instead of sleeping. I can't get it to consistently do the refuse to power on, there are some circumstances when it just refuses to power on but I have not been able to totally identify it. But the sense I got was that the power supply wasn't delivering enough power...i hear a click, the fans for a second and then nothing. The new power supply is in the mail, I'll report back on if it fixes it or if I just wasted $250.

I bet its the power supply. You're not wasting $250. If it does not work, you can sell it for basically what you paid. Thats the nice thing about Mac, even the parts retain their value!
 
That is unfortunate because paying a tech to do this repair on a five year old machine would be too expensive. The repair makes sense if I can do it myself but not if I have to pay someone to do it.

You can buy the power supply online through third parties and install it yourself, just don't plan on having Apple sell it to you. They don't sell individual parts as policy.
 
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