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Mac Pro 3.1 graphics card not found

SOS !!!

Last night I shuted down my Mac Pro ok.

This morning I power it on, it passes power on test (it makes the beep) , but the graphics card fun remains at full speed making noise and I have no signal on my display screen!

I connected to my Mac via teamviewer and opened system information where I see at graphics panel that there is no information for my card.

Does this means that I have to replace my graphics card, or it may be something else that causes problem to my graphics card?

The AASP store is far enough and transfer cost is expensive. I saved a copy of my S.I. named Mac Pro.spx. I also saved a copy of my console system log file named system.log and I uploaded them to a dropbox folder for anyone that interests to help me.

Link is https://www.dropbox.com/sh/ai3nqvk1mhjp9va/AADZpC2y_msah8ei2QrMlnYKa?dl=0

Mac Pro 3.1 ML 10.8.5

Mac Pro, OS X Mountain Lion (10.8.5), iphone 3GS, ipad mini

Posted on Dec 20, 2014 12:14 AM

19 replies

Dec 24, 2014 8:27 AM in response to civil engineering

I don't believe it. IT WORKS !!!

I 'll come back later after I test it, but it just worked. I' m writing this on my mac pro!!!!

MERRY CHRISTMAS TO ALL OF YOU !!!🙂

Apr 13, 2015 4:35 AM in response to civil engineering

Here I am again guys

and after about 3,5 months from 8800GT failure and rebaking it succesfully, the card is dead again, so I will rebake it once more.

I am on OSX Yosemite 10.10.2 now. I don't use photoshop or any 3d game.Beyond safari, firefox, mail, youtube, itunes and some other common apps, I use Wmware for win7 and xp compatibility and there I have installed Autocad 12 but I don't use it for 3d design. I do some movie format conversions with Hanbreak (6-10mins job) every now and then. Recently, last 15days, I started to use Garageband and a little imovie 2-3 hours a day both of them. I understand that, this is not heavy duty jobs for the graphic card!!! However the card is dead again... and unplugged.

What's surprising me is that MacPro works without the card installed!!! via Teamviewer.

I have made a few secs mov conversion to mp4 format with Handbreak and also played a few secs movie with quicktime, I am afraid to use the mac for a long while because I don't know it's capabilities in this situation and I don't want to have a severe damage.

I've always noticed that Handbreak was taking all the cpu juice when doing convertions although I thought that the GPU does the major job for that. But then, when the GPU gets working? Only when sending picture to displays? I don't think so...

So question 1 is: when the graphics card get's into play....and get stressed by my Mac?

and question 2: I am planning to buy a low budget nvidia card for pc -non EFI so no Boot screen- and install it as a main card. Then install again the rebaked 8800GT and leave it unconnected to screen. I will connect it to a screen only when I 'll need the boot screen, or update OS. Will this combination make the 8800GT to stress and overheat as before? If so, I won't connect the 6-pin power connector so it's only plugged in but not working, so no heat at all, right?

question 3: I use the term overheat just because the card fails, I don't know a way to measure the card's temperature and I pretty much like to just to see what's happenning to card under any jobs...

Apr 17, 2015 10:09 AM in response to civil engineering

any answers on these?

Apr 17, 2015 10:15 AM in response to The hatter

I baked it once more and it works again. But I believe I have to buy a new one. Can you see my recents post please?

Mac Pro 3.1 graphics card not found