Graphics card dying?

I have been having problems with my display for the last 6 months or more. Distortions on the screen and sometimes squares of colors overlaid and now I've found that when I'm viewing pictures in iPhoto in full screen when I get to one picture that has been edited (cropped or adjusted) there's a distortion and color mess all over it, see it here:
http://img695.imageshack.us/img695/7220/screenzm.png
This only happens with edited pictures and in full screen in iPhoto.
But the other problems happen with Safari, Photoshop and probably everything else. I had these problems since before Snow Leopard, SL didn't change anything. I have no clue what started them, is my graphics card (ATI Radeon X1600) dying? can I do anything about this?
A hardware test doesn't report any problems.

Run the Apple Hardware Test and see what it tells you.

Similar Messages

Qosmio X870-112 3D - Nvidia Graphics card DIED

I bought the Toshiba Qosmio 2 years ago and after using it only for work
I decided to take advantage of its potential for the game. I installed an old game of 2006, and after 10 days the video card is dead. I have my own electronic laboratory, I opened the computer, cleaned, replaced the heat conducting paste and monitored the temperature with thermocouples professional electronic.
There are no overheating problems but the video card is dead, it must be replaced. "A very common problem, unfortunately all the Nvida video cards, which require a reballing GPU or complete replacement.
Where can I find the video card replacement? does anyone know who to contact?
Toshiba has disappointed me, I paid 2,500 euro for this computer with its hard drive and ram upgrade and after 2 years is not worth anything anymore.

Such issue is very pity and I can understand you very well.
I think it was simply bad luck that this issue happened after the warranty has expired.
But in my opinion a hardware malfunction can happen always and it doesnt depend on notebook model or notebook manufacturer.
In case of hardware malfunctions, the Toshiba authorized service provider is the first contact point if it comes to fix the notebook or to order new parts.
But new GPU or the motherboard might be very expensive affair and I would recommend you to ask for the cost estimate.

Reinstall a MacBook Pro with a dead graphics card?

I have a 2007 MacBook Pro 17 Inch. Its graphics card died. I want to do a clean install of OS X Mavericks. However, if I do this, screen sharing will go off, and I will be blind during the installation. How can I do a clean install?
If I connnect the hard drive externally, then it will get the wrong drivers during the installation, if I do it via Target Disk Mode, same thing.
I have a 2007 MacBook Pro 15 Inch. I know the drivers will be closer on this, but will they be the exact same?
Is voiceover during the installation good enough to navigate blindly? If it is, I could just go blind, and once its set up use voiceover to turn screen sharing on. I know voiceover will suffice once it is up and running to get screen sharing on. (I did it that way when the graphics card went out initially)
Is voiceover during the installation good enough to navigate blindly?
I am going to use this as a server, and I want to make absolutely sure that everything that I didn't put on is off.
It is already backed up.

I purchased my MacBook Pro that way last year (180 days same as cash). They were pretty slow approving the card even though I have good credit. I payed very close attention to the dates and made sure all was paid off before the end of the 180 days and had no issues. I was also careful about not charging anything else to the card until I paid off the MBP, gets a lot harder to understand and control what they consider the promotional amount paid when you start mixing in other purchases and payments for those.
For me it worked out great, Almost 6 months to pay is better than 1 big hit.

Photoshop CS6 running extremely slow after graphics card switch

My old graphics card died (a evga 8800 Ultra Superclocked 756MB 384 bit), so I replaced it with a (XFX HD-455X-ZAFR Radeon HD 4550 1GB 64-bit DDR2 PCI Express 2.0 x16 ). I knew this was a less capable card but from reading other forums it seemed that GPU performance was not as big of an issue in Photoshop and the 4550 was a supported card by Photoshop. However, I was previously able to batch open about 15 (ish) photos at a time to work on in Photoshop. Now if I open more than 1 everything is VERY slow and even that 1 doesn't open as fast. Bigger photos appear blurry (but when I zoom in they are not) many filters are slower. Very annoying. Nothing else has changed on my computer, just the graphics card. Here are my specs (I know I need more RAM and have been considering an upgrade there but am not sure if I need to ditch my current video card as well)
Asustek p5e3 motherboard
Core 2 extreme qx9650 (quad core at 3.0 ghz)
4 GB of DDR3 1333mhz ram
(3) 500 GB 7200RPM hard drives
Radeon HD 4550 1GB 64-bit DDR2
500 Watt Power Supply

I don't mean to be critical, but why would you upgrade to an outdated card like the 4550? The 4000-series isn't even listed under the cards Photoshop is tested with any more.
Tested video cards for Photoshop CC and CC 2014
That said, a problem that can happen with a video card switch is that drivers get left in the system from the old one.
Maybe it would be a good start in diagnosing this for you go to into the Help - System Info menu, copy the data in the whole first section, and post it here.
-Noel

1st Gen Mac Pro Graphics Card replacement??

I have a 1st generation mac pro and the nvidia geforce 7300 GT graphics card died.
what can I replace this with that is relatively inexpensive? Does it need to be 256 or 512 MB?

Thank You. That isn't quite my situation. There is a back on April 11th. 2010 and still unsolved. That is very disappointing considering there are a lot of people who are genius with technical issues on this forum.
It booted up OK from a long power down time but if I have to restart for any reason or power down and start up within a few minutes, I will have nothing on the display (black). The little light is on and if you touch the button the light will goes to sleep but nothing on the display. I checked everything and tried every combinations. What I ended up with is; 1. to leave the computer on forever until the end of time but I can't because sometimes the fan would come on high and stay on., 2. if I have to restart, I have to unplug both power chords and wait at least half an hour to forty five minutes then plug everything back in and start. Most of the time it will work. This puzzled me.
Everywhere I posted this problem, I've had zero answer. There must be some one who knows this issue and solved it before. Hello! Are you out there? Help me please!

Problem regarding Z87-G45 and graphics card

Hey guys, I upgraded my PC yesterday and only kept the graphics card from my old one because it was pretty decent. PC now looks like this:
MB: MSI Z87-G45 Gaming
CPU: i7 - 4770K
RAM: Corsair Vengeance 1600 Mhz (2x8GB)
PSU: bequiet! Straight Power E9 600W
and my trusty ASUS Geforce GTX 660 Ti
So basically I installed a copy of Windows 7 on my new SSD, installed the Drivers that came with the MB, and proceeded to download the new nvidia drivers because my graphics card was only being recognized as "standard vga video card". When I rebooted the system my PC froze at the Windows Logo and then rebooted itself over and over, getting stuck at the windows logo. Some times I got onto the desktop, could even open my browser etc. but that only lasted for a couple of seconds. Safe Mode was working fine though and it recognized the card and drivers. So I googled a bit, tried the card in my old PC and it was working fine.I tried my old GTX 260 but that gave my screen a very red-ish tone. Then I set up Windows again and installed every single chipset driver and MB driver, using mainly the MSI Live Update without my card in the system. It's running on the CPU's GPU atm. Then I plugged in my 660 Ti and didn't even get sth on screen this time. Now I've unplugged it again and am using the CPU graphic engine.
I'm kinda lost by now, I really don't know what else to try and I haven't found a solution I haven't tried on google.
So I wanted to try my luck with you guys: Am I doing something wrong? Am I missing some distinct BIOS features? Or is my MB/graphics card dying on me? And out of those options, which is the most likely?
Anyways, any help is much appreciated.

Quote
Well, I tried my luck once again - didn't work out too well. At least I know it can't be the graphics card 'cause that one is working fine here on my old PC.
But thenagain "compatibility" is a thing.
Any Samsung SSD's dont have SandForce, that i know of
Dosent your BIOS have update software in it? .. that what i used on main (MSI Z87-GD65 Gaming) and will use in dase on foward when i have it as i dont trust OS's.
What happend ? ...well youl luck run out but how?
Did you try different GPU drivers and they did disable your screen?
You see BIOS but not OS or what? ...
Edit: if that so then try other storage then your SSD for the os. just to get it out of picture...
You dont need to "validate" it for test so dont!!!! just set it to get validation later via manual or what ever els it says.
Edit 2: What if you brack the BD cake and insert that VGA to secend PCI-e x16 slot?
Edit 3: Samsung 840 have new FW too. So see if yours have one.
... i need to update one of my "non Pro Samsung 840" to be present in system, that had other drives in RAID...

Dead Graphics Card?

My boyfriend has a Powerbook G4 from 2005, which is no longer under AppleCare warrantee. After three years of using it at the peak of its abilities (playing World of Warcraft), the graphics card died today. Yes, we're sure that's what the problem is.
Is there a way to replace it? We were told by the kid at the electronics store that you cannot replace the graphics card in a laptop, period. This kind of sounds like bull, to be honest.
His laptop's not in very good condition to start with, and we'll likely replace it in a few months. I have an old G4 Powerbook (from 2004, I think?) that I no longer use (its power supply is shot, and the screen is cracked. A price quote from Apple for repairs on that one was more than the cost of a new computer, so it was never repaired, but as far as I'm aware the hard drive and graphics card should still be in good working order). Is it possible to replace the card in his computer with the one from my old one, at least temporarily?
If not, is it possible for us to replace it with a new card ourselves? We are not in a financial position to replace the computer in its entirety right now, but we will both be starting newer, better-paying jobs in a few months so we will buying a new computer then. This one only needs to last till then.
PS- Apologies if this isn't in the right place, there didn't seem to be an appropriate subcategory for this question. Moderators/maintainers have my blessing to move this question to a better place if they can find one.

Welcome to the Apple discussions.
The video circuit is embedded in the logic board, so what the kid at the electronics store told you is correct. You can replace the logic board .... the least expensive way is to check with your local Apple store. It's been reported that they can offer a 'fix everything' service for around $350, which is less than specifically replacing the logic board itself.
If that doesn't work, you can buy used logic boards and replace it yourself if you're handy mucking around the insides of a notebook computer. You can view directions on how to do this at http://www.ifixit.com/Guide/Mac/PowerBook-G4-Al-12-Inch-1-1-5-GHz/63 . http://pbparts.com and http://www.ifixit.com are two parts houses that should carry the logic boards.

Graphic card recommendation - S20 is dying

Hello All,
I have S20 which I recently-3-4 months ago- bought it. It's SATA type with the following specs:
Intel Xeon W3520 Processor (2.66GHz 1066MHz 8MB L2) - 130W
4GB ECC DDR3 PC3-10600 SDRAM (2GBx2 uDIMMS)
NVIDIA Quadro FX 580 32-core (512MB,DVI + DP)
SATA 250GB HDD
When I run sketch-up application with 20MB and put one model on top of another model
or
When I open-up a CAD file with a size of 40-50MB
The machine is dying. Sometimes It's giving response after 1 minute, 2 mins when I am using sketch-up
Today, I upgraded winXP from 32bit to 64 bit, but the result is still same.
I would like to know your opinoins how can I increase the performance of this workstation?
The max graphic card I can install is limited to 1.5GB which is available on lenovo.com or there are some graphic cards available on the market at 2x1024 MB.
Will it help me if I upgrade to 1GB or Can I upgrade to 2GB? Motherboard will support?
Upgrading to SATA SSD would be another solution?
Please provide some feedback if you have any experience about increasing the performance of this workstation may be you have done it before?
Thanks,
Hasan

I think the problem is not because of the computer memory. When I run Autocad, the memory goes up to 1.3 from 0.3GB. And then continue to open a sketchup then It goes up to 1.7GB although the computer has room for 4GB.
Additionally, when I watch the CPU usage, one of 8 core goes up to 100% for some time and then goes down when the program continues to respond.
I think still the problem might be because of low graphic card memory. Because of that, It's using the main processor longer time and I am waiting to see responses from the program
It seems, there are better/higher memory graphic cards than FX3800/4800 on the market. Would it be better if I go one of them? 2x1024=2GB Memory cards?
This resource has also quite good data on various graphic cards: http://www.tomshardware.co.uk/charts/gaming-graphics-cards-charts-2009-high-quality-update-3/3DMark0...
Would you go with Nvidia or ATI?
Thanks

My 2006 Mac Pro (2.66 Dual-Core) graphics card has died on me...

After the loading screen, I usually get some form of this (Screen flickering and repeating itself) so I assume this is due to my graphics card not working properly?
I have a GeForce 7300 GT in my Mac Pro now and I'm wondering what to do now? Since I need a new GC, I might as well upgrade so what is the best card my computer can handle right now?
Also what are my other options if I wanted to upgrade my processors?
Any help is appreciated.

Every Mac Pro model running 10.6.4 or later can accept the Apple/ATI 5770, which uses one aux power cord. In the Mac Pro 1,1 (2006) or Mac Pro 2,1 (2007) they run slightly slower than their full rated speed due to PCIe 1 slots.
Be sure you get the version with Apple firmware, or it will not work under Mac OS X. Flashed PC cards will not light up until Mac OS X is fully loaded and running, making them useless when debugging.

How to backup files onto external hard drive if my MacBook's graphics card is broken?

Hello,
I have a 15" 2012 Macbook pro with 2gb of ram, i7 processor, and a 250 gb Hard drive. In the middle of using my computer, the screen went black. Upon rebooting the computer, I noticed gray and white horizontal lines running across the screen, but I was still able to see the apple logo and loading indicator in the background. As soon as the login screen appeared, the screen went black again.
Genius Bar Diagnosis:
A few days later I took my computer to the apple store to have them diagnose the computer to determine if the hard drive was corrupt or if it was just a display issue. They found that the hard drive was still functioning properly, so no information was lost. The problem was that the graphics card needed to be replaced. So they offered to ship my laptop to an Apple repair facility in Houston, Texas (nearest one to me) and replace the graphics card, as well as any other parts that seemed to be damaged, for a flat rate of about $315. They recommended that I back up my hard drive just in case they found an issue with it (despite nothing showing up in the diagnosis at the genius bar) because the technicians at the repair facility will just swap it out for a new one.
My dilemma:
The employee at the genius bar gave me a list of Apple Authorized Service Providers that could help transfer the data from my macbook's hard drive to an external hard drive. I got a quote from them for $150, plus I would have to pay for a new external hard drive because my other one is full. In an effort to save money, I want to see if there is a cheaper way for me to backup the hard drive by myself. I have a pc laptop that still works fine, so I have been using that since my MacBook Pro died on me. Is there any way I could use that other computer to somehow backup my macbook's hard drive? Or would I need another mac to do the transfer? I have looked into buying a hard drive sled, but I don't know how those work, and I may not have all of the right equipment for it. If that is something I have the right tools for, and it's cheaper after buying all the accessories, then I would much rather go that route than taking it in to get serviced at an AASP store. Please help!
I'll give good ratings to those who give me useful advice.
Thanks,
Matt

Hello mafrerichs and welcome to Apple Support Communities,
Simplest way is to use Target Disk mode:
How to use and troubleshoot FireWire target disk mode - Apple Support
and hook to another Mac and use CCC or SuperDuper and clone your HD to another drive.
You could also pull the drive out of your MBP and use an external USB case or SATA - USB dongle to hook it to another Mac.
"MacBook Pro (15-inch Late 2011),... have a 15" 2012 Macbook pro with 2gb of ram, i7 processor"
That's a little confusing?

GT 70 missing graphic card and constant fan noise Issues

Not even sure if this is the correct place to post this thread if not could someone move it to a different section.
So today for some odd reason my laptop decided to freak out on me. I get a bluescreen saying VIDEO_TDR_FAILURE, I have GT70 NVIDIA GTX 675m I was doing a scan on my computer and the lower right hand corner it said Application has been blocked from accessing Graphics hardware. So before it kept saying that over and over again. The computer basically just lagged out and I did a hard shut down to turn it off. I turned it back on and it started up to the BIOS for some unknown reason I didn't press any button so then I go over to Save & Exit and it said do you want to save the changes, I said no and it started up again to the desktop but very slowly.
Then my desktop finally shows up but now I hear what appears to be my video card fan or the fan that turns on when you are overclocking or just when you hit the fan button on the keyboard constantly running. I am freaking again myself because I don't want this laptop to die on me. My NIVIDIA card is no longer even showing up on the taskbar, even when I go to control panel I click on the NIVIDIA control panel and it doesn't even come up. So I try doing a system restore, after it restarts the video card is showing up I do a couple of restarts to get things back in order again. Even the fan is no longer blasting like before which puts me at ease.
I go to watch a YouTube video and then the video freezes then in the lower right hand corner I couldn't see what it was because it faded away something about the video card crashing so then after it crashes my fan starts to go off again and I am freaking out again. I tried to do another system restore but it seems that it's not working any more. Is my video card dying or do I need to install new drivers for it.
How come it's no longer showing up on my device manager? Did it die or something?

It has been acting very strange today. I turned it off last night and went to sleep, woke up a couple of hours later to turn it back on and it went to the desktop very slowly but my GTX 675m card showed up in the display under device manager also the fan was working normally like it usually does and not constantly going. I was sort of shaking my head not understanding how it showed up again.
So I took it into a computer repair place to see what they might make of it. Won't get any word until tomorrow or Monday to see what it might be, strange enough when they booted up the system at the computer place it booted up quickly and he told me that the GeForce Experience thing opened up and all that. But I don't really trust the laptop, I told them I would still like for them to check it to see if my GPU is really dying. They said they will run some tests to see if it's a hardware problem or software problem.
As for buying a new GPU I am not sure i want to pay that much, is there something more cheaper that might be better than 675m? I keep hearing people saying how bad the 675m is and how NVIDIA does not care much for that particular card. Also my 2 year warranty for the laptop just expired in January and I have no idea why this always happens to me once the warranty expires something wrong happens, not sure if it's a coincidence or just bad luck.
Guess I will see what happens when I get the computer back from the repair place, paid $89 dollars just for them to check it which they say is a lot better price than Geek Squad cause they would have me paying $200. Ugh! This crap makes my anxiety go sky high. Hate to lose my laptop, I mean it seems to boot up to the desktop but that stupid cooler fan going full blast is what concerns me.

Switching from ATI to NVIDIA graphic card caused initscript to break

First off, I want to apologize for having to use a random BugMeNot account but the "What is the output of "date -u +%W$(uname)|sha256sum|sed 's/\W//g'"?" question is literally impossible for me to answer as my Arch Linux system will not boot up.
Well, that aside, I've run into a relatively serious problem. I used to have an ATI card in my system, using the catalyst driver and catalyst-hook to make sure it would keep working after kernel updates but then disaster stroke. My power supply died and dragged my graphic card down with it. After bringing it to a PC store for repair, I now have the NVIDIA GeForce GTX550 Ti card in it. All fine and well, until I wanted to start Arch Linux to remove my catalyst driver and install the NVIDIA one. I started the system, the initscript started to run, did a small part of it's tasks and while processing UDev events it started to spit errors regarding noveau and refused to boot up. (It only showed those errors for a very short time, so it's hard to get the exact error message. I've typed it over from an image I took with my mobile phone and the blurry image may make it possible for this to contain typos)
Error message:
[ 4.916398] [drm] nouveau 0000:01:00.0: unknown i2c port 51
[ 4.916467] [drm] nouveau 0000:01:00.0: 0x0447: Failed parsing init table opc
ode: INIT_I2C_LONG_IF -19
[ 4.936630] [drm] nouveau 0000:01:00.0: unknown i2c port 51
[ 4.947042] [drm] nouveau 0000:01:00.0: EvoCh 0 Mthd 0x0000 Data 0x00000000 (
0x0001 0x01)
Things I have tried:
- Starting Arch Linux fallback
- Starting Arch Linux on runlevel 1
- Shouting at Arch Linux in frustration
However, all three things resulted in the exact same issue.
If anyone knows what to do or has even the slightest hint, I'd love to know.
Thanks in advance and have a nice day,
- TheLastProject

Hm, I'd try to put the nvidia card out and to plug the gfx cable into the socket of your onboard graphics chip, if any.
Then boot into runlevel 3 (text mode) and uninstall the ati drivers. Poweroff, put your nv-card in, boot and install Xorg and the appropriate nvidia driver (just follow the wikis).
If you can't boot into rl3 at all however, edit the grub's command line (or "kernel line") and add single at the and. After booting into runlevel 1 as a single user this way, enter init 3 for rl3. Finally edit /etc/inittab accordingly. -- Alternatively you can edit /etc/inittab with booting your Arch cd, and being chroot'ed.
Last edited by nexus7 (2012-01-26 20:57:14)

Graphics going bad -- Monitor or graphics card failure?

My graphics are starting to go haywire. It came on sort of gradually. The screen is all pixelated, and it's dominated by red pixels.
My sense is that it's a hardware failure, not a software problem. But how can I determine if it's the monitor, or the graphics card?
The monitor is not an Apple -- it's a Dell. And I don't have a spare, or I would just plug in another monitor.
The computer is a 2-year old Mac Pro, with an Nvidia graphics card.
Any help?
thanks,
Mike

99% sure it's probably the card. At least that's the way for me anyway.
As @X423424 said, at least try to reseat the card and don't forget to unplug and replugin the video cable also.
Take the cover off the side and look to see if the video card fan is spinning or if it's completely packed with dust. If it's clogged with dust or the fan died then you have a 40/60 chance it will be fine once the fan works again.
If you know anyone with a computer, Mac/Windows, ask if you can check out the monitor before spending any hard earned cash on a new card, eh?

My graphic card failed but passes the recall test - surely Apple would replace it? How wrong can you be!

Even though I had read about the product recall on some iMacs, mine had never had an issue, but to be safe, the plan was to take it to an Apple store to have them test and replace it.
A week ago, on occasion, the screen suddenly started going completely gray, everything else seemed to be working fine, and any apps running would continue to do so. Without being able to see the screen, the only options was to power it down, run any diagnostic test and start normally. It passed pro tools tests, with no warnings so I thought it could have been a software issue. After many restarts without anything else plugged in, the iMac appeared to function for maybe a day or so, but gray screen whenever it wanted to.
So I called Apple, they told me to get it into a service centre, and they would do further tests. Whilst on the phone to the engineer, my iMac with the gray screen suddenly refused to power back up. The engineers tell me that the graphic card fails any benchmarking tests with corruption and the same gray screen issue, so it looks promising yes? No. The specific tests that the machine must fail for the recall - passed.
Having spent almost an hour on the phone to a Apple senior advisor today, he tells me that it is not covered by the recall !!
The machine is one of the matching serial numbered machines in the recall, it has suddenly developed a graphic card issue that leaves the machine unusable, it suddenly started having this problem within weeks of the recall being announced - It has the faulty card in it, it has the fault - yet it does not qualify?
Can someone please tell me what I could have done to get this card replaced without the estimated £250 charge to get my machine running again.
I am a die hard Apple enthusiast, I have converted everyone I have been in contact with to purchase from them for their legendary customer services and yet feel perplexed as to what I should do next.
My first reaction is to raise a big fuss about the situation at an Apple store, but I can't blame them too much if my machine does not match the recall criteria - but come on, it can't be a coincident that this card has failed now, can it?
What do I do next. I don't want to take my machine over to proper Apple store and raise a fuss, that would be counter productive. But really Apple
Anyone have a suggestion - would you buy another iMac that could have the same problem and get the same response?
To any Apple engineers out there who can look at a case number my ref number is 500592345, apparently there is a lot of info in there, but nothing that will help me!

Apple engineers do not participate here. The only replies you will normally get are from people who are, like me, just fellow users, and there's nothing any of us can do to intervene in this matter.
If Apple says that your system is not covered by the recall, there's not much you can do. You can try taking your system to an Apple Store and politely - do not "make a fuss"; polite but gently insistent is much more likely to get you useful results - ask for assistance. Or you can call Apple tech support, ask to speak with customer relations, and explain the situation to them and request coverage under the recall program.
If all that fails, though, then you're probably at a dead end and will need to pay for the service if you want it done.
Regards.

Graphics Card Failure! can no longer use my Mac

Today while view images in iPhoto (latest version)
My screen suddenly flickered red and the the lower 3 quarters of the screen (apple cinema display 24) went all scrambled.
I shut down.
I checked the display by attaching it to my mac mini and no problems, works perfectly.
I reattached the display to my Mac Pro again.
I booted in safe mode and the screen was barely discernible and totally psychedelic (reds and magenta's) but I could navigate around.
decided to reboot and zap the PRAM (x3).
let the machine continue after 3rd PRAM zap and the screen was totally unreadable.
rebooted in safe mode and screen was worse.
tried to reboot with the snow leopard dvd using "option" this screen came up fine.
chose the 10.6 install disc and the grey apple screen with the little time elapse wheel came up as the disc was being read, about 5 mins into the dvd read the screen froze.
decided to start machine in target disc mode "T key" and attached the Mac Pro to my mini via firewire. all of the mac pro's internal discs mounted, I check all discs with disk utility and they all passed
repaired blessed drive and it passed with no problems.
decided to reinstall snow leopard from mini onto mac pro blessed drive.
tried booting up mini from mac pro blessed dive and no problem starting up mini.
tried rebooting mac pro to see if this new reinstall would work and it locked up during startup.
tried to reboot with my original system install discs that came with my mac pro by using the "option" at start to choose startup disc and system locked up after about 5 mins.
also tried reboot mac pro in safe mode again and the screen is now black after several minutes.
I can't remember the exact model of nVidia car I have, I believe it's the 8800 GT (need to look at my receipt ) I bought in in January when this model came out.
anyone else have a video card die like this?
I plan to drag in my unit to a Genius Bar and see if they can test or swap out the card.
what a hassle.

See my thread here: http://discussions.apple.com/thread.jspa?threadID=2335070&tstart=0
Apparently, the graphics card is dead.
I also booted into Win XP. While the XP interface did not crash (I have the Win 2000 skin active, which obviously doesn't have any 3D stuff), as soon as I launched a game (GTA IV), the system crashed.
I'll get a Radeon HD 4870 now. I just hope, nothing else is broken...
Good luck!

Graphics card dying?

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