Underclock GTX 750 TI with MSI afterburner

Nailroth

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Feb 17, 2013
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I bought a GTX 750 ti a few weeks ago but it kept crashing so i just put in my old card and sent the new one back, i got a call a few days ago telling me the card is working just fine not a single problem, and it was sent back to me, i have now spent a few hours trying to fix it, but now im down to the last solution i have found online underclock it back to normal stock, is a factory OC card, But i don't want to fiddle around with underclocking when i don't know what im doing.

Can anyone help me on how to underclock so i can atleast give it a try, if that dosn't work i just have to accept i wasted money on buying a nvidia card insted of a ati card and just save up for a new ati card.

When i crash my GPU usage jumps up to 100% normaly it sits at around 40% temp reached maxed 42c
 
Solution
The GTX 750 Ti is a quality GPU and MSI is a quality brand. It is most likely your problem comes from using it in a very old machine.
If you have updated to the latest BIOS version, that is about all you can do for compatibility.

The GTX 750 Ti is an incredibly efficient graphics card. It requires only 60W.
With a typical CPU up to 95W you need a power supply rated at 21A or 250W for the combined +12V rails.
With high power CPUs up to 140W you need a power supply rated at 25A or 300W for the combined +12V rails.
If a power supply has more than one +12V rail, you can't just add the values together.
They should specify a limit for the combined rails.
If they don't, it is probably not a good quality supply.
If you suspect your current...
If it is an MSI card it should have come with software to adjust clock speeds. This would be aimed at overclocking but you can underclock if you like.
Have you updated to the latest drivers from the Nvidia website?
Do you have latest bios update for your motherboard?
Do you see the issue in multiple games?
 

freakout918

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Jan 20, 2013
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+1 Suztera

The Crash could be a drives issue(most probably). Before doing all that just try to uninstall any previous graphics drivers istalled(AMD or Nvidia). Then do a fresh install of the latest drivers for the GPU.
This should most probably fix the issue.

If it doesn't fix the issue there could be a problem with the PSU. Make sure you have a decent certified PSU.
 

Nailroth

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Feb 17, 2013
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Yeah i might have figured out my problem, my bios. asus has released a new update for it and i havn't noticed it but im having problems dowloading it, tells me i have the wrong version of windows, neither 64 bit or 32 bit work on my 64 bit system
 


What is your motherboard model, including revision?
 

Nailroth

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Feb 17, 2013
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yeah i figured out i needed the updater program in utility so it's installed and fixed but i still crash it's no use this card is just a piece of shit card that shouldn't exist
 

Nailroth

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When you buy a psu does it matter what you buy to get enough connections for harddrives and cd roms drives? when i look at psu they don't say that neither what amp on 12v rails
 

Nailroth

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I have been looking on another site and i found the same i found on the site with no information about amp and it says its 35 amp on 12v but i also found a cheaper psu with 24amp and 21 amp on the 12v rails but the 32 amp is a psu with +80 bronze so it should be more efficent and give a lower bill each month.

The psu's i have looked at.
Coolermaster b-series 500w 24a 12V 21a 12V2
Corsair cw 430w 32a 12v
also found this one as cheap as the coolermaster
EVGA 500W site says 80 plus 40a 12v
 

Nailroth

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Yeah probably going to be that one then if it's still for sale next month, when i can afford a new psu. first i just have to check if my psu is a atx so i get teh same size psu as i have :D But thanks for the help. i guess it was time to upgrade my psu bought it 10 years ago
 


PSU measurements are standard. They should measure the same or at least similar. It should fit in any cases unless it stated it is for another form factor. There are some that are longer but they are the 1000W+ psu.
10 years is a long life for a psu. It probably time to retire that and get a new one. If possible i would suggest get the EVGA 500W 80 Bronze.
 
The GTX 750 Ti is a quality GPU and MSI is a quality brand. It is most likely your problem comes from using it in a very old machine.
If you have updated to the latest BIOS version, that is about all you can do for compatibility.

The GTX 750 Ti is an incredibly efficient graphics card. It requires only 60W.
With a typical CPU up to 95W you need a power supply rated at 21A or 250W for the combined +12V rails.
With high power CPUs up to 140W you need a power supply rated at 25A or 300W for the combined +12V rails.
If a power supply has more than one +12V rail, you can't just add the values together.
They should specify a limit for the combined rails.
If they don't, it is probably not a good quality supply.
If you suspect your current power supply cannot meet these requirements, this could be the issue.

I can't find any reference to a Corsair CW 430 in google.
The Corsair CX 430 is rated at 32A on the +12V rails. This is a tier 3 supply which is OK for what you want.
Coolermaster B500 is rated at 408W on the +12V rails. Not on the tiered list and I can't find any detailed reviews. I would avoid it.
EVGA 500B is rated at 40A on the +12V rails. Another tier 3 supply. Probably the best of the three.

Tiered list:
http://www.tomshardware.com/answers/id-1804779/power-supply-unit-tier-list.html

These are all ATX power supplies. This specifies the size where the supply mounts to your case. The length can vary, but these are all short power supplies. As long as you don't have a small form factor case, these supplies should be suitable.

It has been mentioned before I think, but it is important to remove any old drivers from AMD or Nvidia and then reinstall the latest drivers. Anything left behind by old drivers can cause problems.
 
Solution

robtynan

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May 19, 2013
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Hi,

Got one of these cards second hand and had the same problem, it kept crashing with every game. Its also the msi gtx 750 ti oc.

Having used the software 'msi afterburner' to underclock the memory clock by 200mhz its working fine with no problems.

msi afterburner is free and easy to use. we set the Memory Clock to -200MHz. SOLVED!

All the best