GTX 750Ti 4GB problem

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oto.ulrich

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Jan 6, 2018
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Hey guys, so I've recently got a not too much used GTX 750 Ti 4GB OC from a friend, it runs just fine but whenever I use a GPU detection software it shows me only 2GB of VRAM instead of 4GB. Also GTA5 showed me only 2GB when I looked in the settings. I'm not really good at these things, can someone help me? Is it a software or a hardware problem?
Thanks
Oto
 
Solution
Your GPUz screenshot shows you are running a 2GB ROM, regardless of all the rest. Effectively it's telling the drivers and GPUz you are running a 2GB card. I have seen this before as a work around on faulty cards when the last 1/2 of the VRAM is showing errors you get lucky by basically shutting it off and making the card still work.

The actual ROM for you card should be 82.07.55.00.B5 as far as I know.

Edit; this is the unverified BIOS, I'd be wary of this but it might be worth a shot if you have another card for backup so you don't have to flash blind if you brick it.
https://www.techpowerup.com/vgabios/181728/181728

You have a 4GB card that's been flashed to a 2GB card...
1p2VSKt.png
 
OK while it's not the best cooler it's not the worst - I'd say your temps are still too high. If it's making good contact with the CPU and a small amount of thermal paste was used, you are getting way too high of a temperature reading.

so, make sure the cooler is mounted correctly, make sure it has good airflow through the case (if it runs WAY cooler with the side panel off the case, you aren't getting enough fresh air in there).

Typically I'd expect to see that CPU at 3.2 ish with little to no voltage bump. Every chip is different of course.
 
So I was inside the case, got to know that 1 of the 4 fan pins wasn't in place correctly and I replaced the thermal paste. Now I'm getting 35°C idle temperatures