EDIT: QUESTION ANSWERED. EVGA GTX 750 ti works just fine in my EVGA nForce 650i Ultra motherboard. Confirmed via actual test on 07/29/2015.
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Hi guys,
 
Yes, I know this is an ancient mobo. I know the advice will be "upgrade your cpu/mobo/etc." Already on top of that. I'm building a completely new system for myself. However, I want to repurpose the existing system as a second box for World of Warcraft (for the wife). My requirements are a GPU as fast as or faster than my vanilla GTX 560, cheap, and displayport (she'll be using an Apple Cinema Display, pre-Thunderbolt). The 750 ti fits the bill very nicely.
 
My concern is the lack of UEFI bios in the 650i Ultra. Can anyone here confirm still using this motherboard with a modern GPU?
 
EDIT: I can't post links, so, absent that: I was considering an EVGA GTC 750 ti, but might lean towards an MSI variant with dual-bios feature.
 
The EVGA has EVGA's legendary support, and a higher base/turbo clock rate. I also like the size (not even close to a requirement, just noting that I like it). However, the MSI has a dual-bios and a legacy switch that allows for compatibility with older motherboards. HP and their poor bios support is often cited as a reason for preferring this card. (Note, not considering it "poor" support for my mobo, as the mobo is from 2007. There was never an expectation of a bios update in 2012+, though a bugfix bios update to P04 would have been nice!)
 
Anyway, any feedback is welcome. And again, this is for repurposing old hardware for a 2nd WoW box. I KNOW I need a new CPU/GPU/mobo, etc. Skylake/Pascal :)

The highest card you'd be able to run on the 650i Nforce board would be a 680. Anything in the 700 series or up will not work.
 
NewEgg has a refurb 650ti if you act fast.

EVGATech_ErinW
The highest card you'd be able to run on the 650i Nforce board would be a 680. Anything in the 700 series or up will not work.
 
NewEgg has a refurb 650ti if you act fast.

I can now affirmatively state that the EVGA GeForce GTX 750 ti SC works FABULOUSLY on my EVGA nForce 650i Ultra, no issues :) Just plug and play (and reinstall drivers, of course).

Erin - I've only had two people before me attempt to slot a GTX 750 ti (EVGA model) into an nForce 6 mobo, and both were successful. I have yet to meet or speak with a person who failed to slot a GTX 750ti into an nForce 6 mobo. Full specs (links provided from my Newegg order history):
 
Core 2 Quad Q 6600 - http://www.newegg.com/Product/Product.aspx?Item=N82E16819115018
EVGA nForce 650i Ultra - http://www.newegg.com/Product/Product.aspx?Item=N82E16813188017
G.SKILL 2x1GB (2 kits, total of 4 sticks) DDR2 800 - http://www.newegg.com/Product/Product.aspx?Item=N82E16820231098
SeaSonic S12 II SS-500 - http://www.newegg.com/Product/Product.aspx?Item=N82E16817151034
WD Black 500GB - http://www.newegg.com/Product/Product.aspx?Item=N82E16822136320
(1st GPU, 2008) EVGA 9600GT 512MB - http://www.newegg.com/Product/Product.aspx?Item=N82E16814130334
(2nd GPU, 2012) EVGA GTX 560 SC - http://www.newegg.com/Product/Product.aspx?Item=N82E16814130661
(current GPU, today) EVGA GTX 750 ti SC - http://www.newegg.com/Product/Product.aspx?Item=N82E16814487024
 
Running Windows 7 x64 Home Premium
 
EDIT: Not sure why 700 series cards would have problems. Only the 750 and 750 ti are Maxwell. Majority of 700 series is Kepler, while at least 1 model is Fermi. These should all work on legacy boards. Maxwell seems to be the only one so far with this issue, well, from what I've seen.

rjohnson11
I wouldn't expect a 960 card to work but it is possible a 750ti might work but of course that is not guaranteed. 

The 750 ti does work. I've edited the original post to be more clear.

EVGATech_ErinW
Maybe it's just the older pre-built Dells, HPs, etc. with the Nforce, and things like the Intel H/B chipsets. They likely have such a dumbed-down BIOS that they can't handle the 700-series and higher cards.

I'm starting to think the same. Everytime I've heard of this issue, it was a pre-built. And honestly, they weren't legacy mobos either. They were mostly 1st gen UEFI boards that didn't have an update that allowed you to select between Legacy and UEFI for the GPU. Everytime I've seen a person take a retail board with a Maxwell GPU, it's worked so far.
 
Go read the negative reviews on Amazon or Newegg for your 750 ti and 960. I swear, every negative review starts with "doesn't work on my HP (insert model number here)."
 
Granted, I'm not confident in this. If someone asks me if a Maxwell card will work with their legacy non-UEFI mobo, I'll tell them 50/50, go ahead and roll the dice. I'm just glad that it worked in my case. Actually, I take that back. I wish that it hadn't worked. I was trying to get my wife to let me buy a G3258 + new mobo + DDR3 8GB for a budget build, but now that this card works, I'm stuck with the mobo even longer!