After overclocking gpu screen goes black and FPS drops dramatically

Leedood

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Apr 25, 2016
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So i overclocked my Geforce GTX 750 Ti (+180).For 2 days it was perefectly fine,but today i just got black screen while gaming and my FPS dropped so much from 200 to 40-50.
 
Solution
Every component usually have 2 years warranty especially if you live in EU. Therefore you can RMA it if it didn't expire! :) Just find the bill and send the card to the store you bought it from.

The only thing you must NOT say is that you tried to overclock it. You have to change GPU speed to it's stock one and re-install it's driver. Use DDU to remove the driver first and then install it again

http://www.guru3d.com/files-details/display-driver-uninstaller-download.html

Otherwise you'll need a new GPU

Leedood

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I was using MSI Afterburner and went step by step +20, and each time i ran a program called FurMark to see if there will be any pixels or missing texture and it was all looking good.Btw I watched this video:https://www.youtube.com/watch?v=ctqhdBwxeps
 

Proofy

Admirable
Were you checking your GPU temperature as well with HWinfo/Speccy or some other software? I suggest you download it, go in game for a bit, ALT+TAB and check the temperature... If they are really high then you oc'ed it too much. Also when was the last time you changed your thermal paste
 
You should back any overclocking off you did to the card.
Overclocking does not necessarily break a graphics card straight away.

But any weakness in the card or a component of it may show it`s self after a few hours or days use when overclocked.
And start to produce problems like you are seeing now Leedood.

Either back the the Gpu core speed off by 50Mhz or 100Mhz and the memory speed if also overclocked.
Then test the system again. And of course the temps of the Gpu.

If the Vrm modules get too hot, not that on most cards it gives a report on the temperatures of the Voltage regulator modules.

It will cause the card to crash, they will also heat up more drastically with any voltage changes made to the card for gpu core voltage and memory voltage as they will have to work harder.
They can be a weak point of a graphics card as much as the Gpu or the memory when overclocking a card.

And as I said don`t show there true colors until a few hours or days of use when a card is overclocked Leedood.
 

Leedood

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Okay so I set everything back to normal as it was before overclocking, the FPS is still bad and the Gpus temp. is 35-36 while im in the game.When im not in the game temp is around 30-32 so it doesnt change that much as it used to before.One more thing does the Gpu need some break to be full working again? :)
 

Proofy

Admirable


No, it's not like GPU will heal itself after you did something wrong with it. :D

Now do just a slight overclock, keep track of the temperature and fps performance. Keep doing that while you're having normal temperatures till you get desirable fps
 

Leedood

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It doesn't make a difference if i overclock it. The FPS is still bad and the temperature slightly changes. Am i screwed?
 

Leedood

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My fps didn't improve. I bought my computer in may 2014 and i dont know if my GPU is still under warranty. :/

 

Proofy

Admirable
Every component usually have 2 years warranty especially if you live in EU. Therefore you can RMA it if it didn't expire! :) Just find the bill and send the card to the store you bought it from.

The only thing you must NOT say is that you tried to overclock it. You have to change GPU speed to it's stock one and re-install it's driver. Use DDU to remove the driver first and then install it again

http://www.guru3d.com/files-details/display-driver-uninstaller-download.html

Otherwise you'll need a new GPU
 
Solution

Leedood

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Okay thanks for helping me,I appreciate it a lot.One more thing how much will i have to pay ?

 

Proofy

Admirable
Pay for what ? If it's under warranty you won't have to pay for anything beside shipping the bad GPU to them. RMA is free, you will get brand new GTX 750ti or even better card if they are out of stock.

If your warranty isn't valid anymore then you'll have to buy a new card. I'd suggest GTX 960 this time
 

Leedood

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Oh yeah i forgot, sorry.To be honest I don't know what should I say to them, why its not working properly becouse you said that I shouldnt becouse i overclocked, whats the best thing to say?
 

Proofy

Admirable


Just say that your GPU started acting funny while gaming, screen freezes, fps drops etc. They will ask you did you overclock it at any point and cleaning from dust, just say that you never overclocked it and was regurarly cleaning your pc from dust :)

First they will try to fix it, if they can't you will get a new one.
 

Leedood

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Okay thanks again for everything!

 

smackage_package

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Jul 20, 2016
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i know im a little late but i had the same exact problem. for me all i have to do is reinstall the driver and it fixed itself. idk why this worked but it did. i have the same exact card as you.