Newbie overclocking GTX 750, need help! :)

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lbPC

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Aug 9, 2015
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Hi guys, I'm quite new to building and rebuilding PCs and whatnot, but I recently bought and installed the Gigabyte GTX 750 2gb OC edition, and was looking for help on how to go about overclocking it.

I know that theres a handy little Asus overlocking program (which I have installed), however I'm not sure how to check to make sure my PSU can handle it, or whether the PSU is even an important factor...basically I'm lost!

Any help would be greatly appreciated :)
 
Solution
madchemist83
It's because your system is unstable. Start with stock speeds, unigine heaven and monitoring software. Use MSI afterburner to turn up core clock 50 mhz at a time. After each time run heaven and record ur score, keep going until it hits the wall, either bsod or freezes. Go back 25 mhz. Alternatively u can raise ur voltage if that's an option. At some point raising voltage will just produce more heat and no performance increase so monitor ur temps, I suggest build a custom fan curve in afterburner. After u done with core go to memory clock and do the same. Find that sweet spot and u should be solid, loop heaven and look for artifacts.
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Lucajones1

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I personally use msi afterburner as it is a great software for overclocking gpu's.

First off you will need the driver installed for your gpu which you can find on the company's website which the gpu is made by.

Install afterburner and move the clock up about 100-150mhz at a time and test to see if there are any instability issues. With overclocking though you produce more heat which means you will need to increase fan speeds to cool the card which I would do every 200MHz or so by 5% fan speed.

Also can you reply with the wattage of the power supply. Overclocking doesn't always require more watts if you don't increase the voltage to the card.

Hope this helps. Feel free to reply anytime if you have any issues
 
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lbPC

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Thank you for your response!

That makes a lot of sense and actually mentions fans unlike a lot of the guides online.
I seem to be able to OC it to the max, however it's giving me fewer FPS? Any idea why that would happen?
 
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lbPC

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but I was getting less FPS?
 
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madchemist83

madchemist83

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It's because your system is unstable. Start with stock speeds, unigine heaven and monitoring software. Use MSI afterburner to turn up core clock 50 mhz at a time. After each time run heaven and record ur score, keep going until it hits the wall, either bsod or freezes. Go back 25 mhz. Alternatively u can raise ur voltage if that's an option. At some point raising voltage will just produce more heat and no performance increase so monitor ur temps, I suggest build a custom fan curve in afterburner. After u done with core go to memory clock and do the same. Find that sweet spot and u should be solid, loop heaven and look for artifacts.
 
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Solution
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lbPC

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Aug 9, 2015
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Thank you very much!
 
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