Currently Being ModeratedSep 7, 2013 12:56 PM (in response to Pepslight)
I'm assuming you RAM you installed into you iMac was fully compatible with your machine.
Given that, the graphics chips on an iMac can't be simply dropped in as you would on some windows machines. Windows graphics chips are designed to work with Windows machines; for the same reason, there's a good chance that the GTX680 may not even fit into the Imac chassis.
Currently Being ModeratedSep 7, 2013 2:10 PM (in response to poikkeus1)
Hello poikkeus1 Thank you for your awnser.
wen I mean the GTX 680 I was meaning the GTX 680m That apple provide as an upgrade for the iMac 27" and I would like to send back for apple or a premium reseler wich could change the graphic card for me without loosing my 2 year warranty.
the ram is 16 gb and works perfect and have nothing to do with the graphic card as far as I know ^^
Currently Being ModeratedSep 7, 2013 3:19 PM (in response to Pepslight)
It's my understanding that the answer is "No", Apple will not upgrade the video card and anyone that does so will void the warranty. iMacs are not designed to be upgraded nor does Apple have any avenue that would allow them to be upgraded, at least with regard to the video card. I'll be interested to learn if I'm wrong but that's my current understanding.
Currently Being ModeratedSep 7, 2013 3:24 PM (in response to Pepslight)
iMacs are not designed to be upgraded especially the new ones where the screen is glued to the case; in most cases the graphics card is part of/soldered onto the logic board and, if a repair was necessary, it would be replaced with the same exact part. In any case, even if it could, the replacement would be +/- $800.
As for the RAM, we know it has nothing to do with the graphics card - are you sure you checked the RAM specs for both machines and they are identical? If not, you will have problems as Macs are very finicky about their RAM. Generally, OWC (macsales.com) and Crucial are the most recommended; Value RAM are not. There have been repeated reports on problems with Kingston RAM.
Currently Being ModeratedSep 7, 2013 4:51 PM (in response to babowa)
Ok thank you all guys, I will purchase so a ps4 and hope I can use my iMac late 2012 as a screen and play heavy games, its sad I can't upgrade or change anything inside, for the memory was quite a lucky I had managed to destroy my laptop late 2012 an HP professional line one and it had 8gb I took this memory and put inside, its a low latency ddr3 1333 and works absolutly fine some how ^^
my question came because of this.
so it means I can't add a Fusion drive on my mac *** well ?
Currently Being ModeratedSep 7, 2013 4:54 PM (in response to Pepslight)
and this imac for about 400 dollars or something like this, is absolutly identical to mine right now just the frequence of the processor is a bit different, and I don't think the motherboards are diferent so I was thinking there is propably a empty slot lonely deep on my computer waiting for a MXM Gtx 680m with 2gb instead of 500mb
Currently Being ModeratedSep 7, 2013 5:15 PM (in response to Pepslight)
Unfortunately, the better graphics card is only available while doing a custom order and the same goes for a fusion drive; as I said, iMacs are not upgradeable - the only exception is the RAM (and only if it's a 27" of the new models - RAM cannot be added to the 21").