Upgrade iMac 27" late 2009 video card?

I am currious as it states on applecomponents.com that there is a 30 Day Guarantee. Is this the case now and not when you bought it, or is it that they just do not honor it? I am looking where to purchase the 6790M 2G card and I cannot find another place. Does anyone have any other places to go?

Thanks.

I am not sure if my update was taken, but I did find that Macparts still has this at $598. If anyone has a better place to get it from or has any info as to why I should not purchase from these folks, please post. Thanks.

Hello all, puddytat, i'm very confused to you for your problem with Applecomponents.com, I bought the card originally sold the site for the new part , don't remember how warranty days it was.

As a can see today, the card how sold today is an used ... and more expansive !It is strange.

So i hope you will find arrangement with this website to resolve your conflict.

Ohh Ohh Ohhhhh

Guys in March 2012 , I wrote that you installed instead of ATI Radeon HD 4850 512 MB ​​Radeon HD 6970 card . The other day I began to strip and the computer hangs again today stripes on the screen again and it crashed. After reboot appears apple and load indicator , then goes to a gray screen and restart, it seemed to me that even in the area of ​​processor temperature high touch. Tried to restore the system by holding ALT, but after a time a blue screen . Took out the old card put everything works fine. What could have happened ? Is it possible to recover the map and how to test it live or not.

If the card can not revive, may make sense to buy a new Nvidia.

Is it possible to put the card Nvidia, SSD in my iMac 2009.

How much memory can be added at me now 16 GB

Wants to give more life to this beautiful car.

I plan this year to take a new Imac or MAC PRO

So my story so far. 4850 card died, bought 6770m, it runs cooler,its cheap, and performance almost the same as 4850. If you want gaming machine get ps4 or xbox one, it will be cheaper than to get new imac 🙂

I use my machine for many uses, from 3D drawing to flying flight sims like X-Plane. The drivers for NVidia when it comes to Max just plain suck. You computer will most likely require an AMD card. If you want a computer for gaming, I would sort of agree with ge2kaslt, but I would not buy one of those game boxes for it. I would go the PC route as I have done for this. Fully upgradable for future expansion and it handles anything I throw at it. Graphics and FPS also seem to be better than what the boxes can give. Don't get me wrong, I love Mac, but the machine I built will run circles around the new Mac Pro and is somewhat cheaper.

As for my iMac that needs a replacement gpu, I will get a new one and just give it to my daughter for her school work.

Would something like this work on a late 2009 macbook pro if done properly? I know the internal setup of the imacs of this time are basically laptop setups. So just wondering if a similar process would be possible in a macbook pro with some careful decconstruction.

Hey guys!!

My 4850 512mb card just broke down😟 Does anyone still have a card lying around? contact me at oh@nor-reg.com ,it doesn't have to be a 4850. Maybe a 5670, 6770 or something else... or maybe you guys know a good place to buy a new one?

I was actually thinking of buying one at applecomponents.com, welovemacs.com or macpalace.com, but they have a lot of bad reviews.... What to do???

Sorry Oladunk, I don't have a working card for you. I did successfully replace my bad 4850 about six months ago with a replacement 4850 from welovemacs.com. So far, so good. I started to order from macpalace.com, as they had the best price, but got a funny feeling when they wanted me to order over the phone and not use Paypal. Good luck with your repair!

Although it is more expensive, if you have a local Mac repair place order the card (and install the card), then you have a more secure guarentee than if you just purchase direct from the online vendors. This way, you also have a local shop who will be accountable should the card stop working after the 30 days window that the online dealers provide. It is worth getting a quote from your local shop to do the install.

so has there been any developments with the replacement options? Increasing number of these GPUs seem to be dying...like mine yesterday. The problem seems to be that there are no exact apple versions available and finding a working replacement model from the new line up of GPUs is difficult since the laptop GPUs are not commonly sold at retail.

I have considered following:

ATI mobility radeon

HD 4850 (difficult to find and prices compared to new ones excessive)

HD 5870 (maybe some available, but not specifically sold as apple compatible)

HD 6970 (nowhere to be found, at least not with a reasonable price)

Nvidia

Quadro K4000M (some can be found, but the apple support for the M version remains an issue)

Geforce GTX 675 and 680, 770 (did not find any, but I assume that these would work since they are in more recent iMacs)

Geforce GTX 780M (some could be found but still expensive and the power consumption about twice as much as in the original 4850, and does not come with a heat sink, so probably would cause heating problems)

So if there are any better suggestions on what to try I would be glad. My budget limit is 200€.

so has there been any developments with the replacement options? Increasing number of these GPUs seem to be dying...like mine yesterday. The problem seems to be that there are no exact apple versions available and finding a working replacement model from the new line up of GPUs is difficult since the laptop GPUs are not commonly sold at retail.

I have considered following:

ATI mobility radeon

HD 4850 (difficult to find and prices compared to new ones excessive)

HD 5870 (maybe some available, but not specifically sold as apple compatible)

HD 6970 (nowhere to be found, at least not with reasonable price)

Nvidia

Quadro K4000M (some can be found, but the apple support for the M version remains an issue)

Geforce GTX 675 and 680, 770 (did not find any, but I assume that these would work since they are in more recent iMacs)

Geforce GTX 780M (some could be found but still expensive and the power consumption about twice as much as in the original 4850, and does not come with a heat sink, so probably would cause heating problems)

So if there are any better suggestions on what to try I would be glad. My budget limit is 200€.

So i found 6870m from an alienware laptop. The hardware switch was fine, but I am stuck with a black screen despite zapping the pram, starting in safe mode or forcing osx boot. Any clues on how to proceed with the problem solving. I was not expecting any driver problems under mavericks and now little concerned if there is a software issue or hardware issue.

Most, if not all, GPUs from Windows PCs are, usually, NOT compatible with Macs.

The GPU chip itself needs Mac code/instructions burned or programmed into the chip for it to be recognized on Mac systems and for the OS X video drivers to work.