Question GTX 750, change vram amount from 2GB to 1GB?

Apr 20, 2021
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I recently come into possession of a GTX 750 1GB card. It work fine on dekstop but everytime I run a games or program that use more than 1GB vram it crash.
I noticed that it say N750-1GD5/OC on the sticker but in Windows cpuz, gpuz report it has 2GB GDDR5 memory.
My theory is that it actually a GTX 750 1GB but someone flash the bios or edit the vram amount to 2GB. That is why when I run games use more than 1GB vram it instantly crash. I try to use NVFlash to flash the bios to another GTX 750 1G card from the bios list here. The flash is successful but the Vram amount is still 2GB and it still crash.
https://www.techpowerup.com/vgabios/?model=GTX+750
Is there anything else I can do? Can I limit the vram amount to 1GB somehow?:(





I think this is the card model
https://msi.com/Graphics-Card/N750-1GD5OCV1
 

Eximo

Titan
Ambassador
You want to use GPU-Z to match these numbers to the BIOS you download, should also confirm if it is 1 or 2 GB for you.

If you truly have that 1GB card, the only 1GB MSI BIOS there is overclocking it slightly. From 1059Mhz up to 1085Mhz (Not accounting for boost)

Device Id:10DE 1381
Subsystem Id:1462 3107
 
Apr 20, 2021
4
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10
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You want to use GPU-Z to match these numbers to the BIOS you download, should also confirm if it is 1 or 2 GB for you.

If you truly have that 1GB card, the only 1GB MSI BIOS there is overclocking it slightly. From 1059Mhz up to 1085Mhz (Not accounting for boost)

Device Id:10DE 1381
Subsystem Id:1462 3107
Yeah. I already using that 1GB bios but it still show 2GB vram in GPUZ. I even try other 750 1GB bios from other vendor like Asus and Gigabyte, Palit but the vram is still 2GB

https://www.techpowerup.com/vgabios/153749/msi-gtx750-1024-140115
 

Jacob 51

Proper
Dec 31, 2020
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I recently come into possession of a GTX 750 1GB card. It work fine on dekstop but everytime I run a games or program that use more than 1GB vram it crash.
I noticed that it say N750-1GD5/OC on the sticker but in Windows cpuz, gpuz report it has 2GB GDDR5 memory.
My theory is that it actually a GTX 750 1GB but someone flash the bios or edit the vram amount to 2GB. That is why when I run games use more than 1GB vram it instantly crash. I try to use NVFlash to flash the bios to another GTX 750 1G card from the bios list here. The flash is successful but the Vram amount is still 2GB and it still crash.
https://www.techpowerup.com/vgabios/?model=GTX+750
Is there anything else I can do? Can I limit the vram amount to 1GB somehow?:(





I think this is the card model
https://msi.com/Graphics-Card/N750-1GD5OCV1
Try updating NVIDIA drivers... Try removing the integrated graphics driver from device manager
 

Joseph_138

Reputable
Nov 22, 2016
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You can't just use the BIOS from any card. You have to use the BIOS specific to that card if you think a bad BIOS flash is the cause of the problem. Returning the card to stock should be the first step to diagnosing any problem where you think the wrong BIOS may have been flashed in the past.
 
Apr 20, 2021
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Try updating NVIDIA drivers... Try removing the integrated graphics driver from device manager
I already tried several different Nvidia driver, nothing. How would remove the integrated graphics driver will help? I think the problem here is the uncorrect Vram amount on the card. It should be 1GB instead of 2GB.
 

Jacob 51

Proper
Dec 31, 2020
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I already tried several different Nvidia driver, nothing. How would remove the integrated graphics driver will help? I think the problem here is the uncorrect Vram amount on the card. It should be 1GB instead of 2GB.
Which processor do you have? I think your PC is combining the VRAM of both integrated graphics and the card. To remove the driver, press Windows Key + X on desktop and select device manager. Click on display adapter and it will show the drivers for both your IGD and NVIDIA. Right click on integrated one and click uninstall
 

hang-the-9

Titan
Moderator
I already tried several different Nvidia driver, nothing. How would remove the integrated graphics driver will help? I think the problem here is the uncorrect Vram amount on the card. It should be 1GB instead of 2GB.
You can actually look at the RAM chips and do some math to find out what the card has physically. If you bough the card from someone I would try to get the money back from it, especially if purchased from a place that has some built in protection from fake products like eBay.
 

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