GTX 680 in 2008 Mac Pro

[attentionengine]

Hey all - trying to get CUDA support in adobe cc 2017. I've had a GTX 285 in my mac pro early 2008 3.1 that worked for years.

I ordered a gtx 680 flashed for mac off ebay, just popped it in and having some problems. The apple logo comes up, but distorted - (see screenshot).

And then the whole system freezes at about 1/3 the loading bar. I've flashed PRAM, and tried safe mode, no go.

http://www.ebay.com/itm/182356744829?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT

Did I buy a lemon? Could it be a power problem? Would love ideas!

I've popped the 285 back in for now and it works a okay.

I'm on OSX 10.10.5

 

[666sheep]

The apple logo comes up, but distorted - (see screenshot).

And then the whole system freezes at about 1/3 the loading bar. I've flashed PRAM, and tried safe mode, no go
Did I buy a lemon?

You don't even need to ask.

 

[owbp]

For the reference, I was having the same issue with my MSI R9 280X whenever I tried to add EFI to some newer MSI BIOS from techpowerup.
It just looks like a badly flashed card.

 

[nigelbb]

Return the card for a refund.

BTW Why did you pay a premium for a flashed GTX680? This is the one Nvidia card that you can easily flash yourself.

 

[pastrychef]

Yeah, looks like a defective card. Return it ASAP.

 

[CapnDavey]

My friend Guy bought a 5,1 with a 7970 he had the same issue he sent the card back the new one didn't come in a anti static bag. some people don't handle the cards right and f** them up!

 

[ActionableMango]

I agree, bad card.