Something is frying my video cards, please help!

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Jaybk26

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Jan 28, 2014
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So here's my situation. I built a gaming rig back in October it has a 600 watt PSU, an i-5 3570k, and an EVGA GTX 660 graphics card. A few days ago my computer started blacking out in the middle of games and there was nothing I could do but reset until it happened again. After a day of this, the computer just would not boot with the graphics card installed. I talked with EVGA and they sent me a replacement one, I installed it, and it worked...for one day. The next day it wouldn't boot up with the graphics card in. I tested the (second, one-day old) card in a friend's PC and then his suffered the same symptoms. It seems to me like something is killing my graphics cards. What's the most likely culprit?

Thanks in advance.
 
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bgunner

bgunner

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Feb 13, 2009
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Besides the PSU, like mentioned before, If you are OCing the card this can happen. If you have a riva tuner based program like MSI Afterburner, EVGA Precision, iTurbo ect. installed make sure you are not adding voltage to the card. This can and will fry a card if to much voltage is applied. This would be my first guess before a bad PSU just frying the GPU and nothing else. Usually when they die they either just die and don't work, Take mutliple parts with them or wont let the system run for long.
 
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J

Jaybk26

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Jan 28, 2014
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The PSU is a Corsair CX600M.
 
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J

Jaybk26

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Jan 28, 2014
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I don't have any software like that and I'm not OCing anything. Should I replace the PSU and maybe get a UPS? I just want this problem to go away. :D
 
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Jaybk26

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Jan 28, 2014
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I'd rather be safe than sorry. :D I know it's a possibility that the PSU is giving out and I know that I'd rather not fry another video card. Is there an intelligent way to test the PSU?
 
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Andrew Buck

Andrew Buck

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Jan 28, 2014
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Test voltages with a voltage meter and amperage as well.
 
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bgunner

bgunner

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Did the second fail in the same exact way? or did it just stop working all together the very first time? I agree with andrew that there is a chance you had some bad luck and got two bad cards but it is rare for it to happen. You may be in the rare category. since both are under warranty I suggest RMA them both to be sure.

Just a word of caution on the CX series PSU's from Corsair. They are built with low quality Caps and boards. Because of this the cost is cheap but the life span suffers greatly. I never recommend them because I have had to replace a few for customers that got them and they failed. Other Corsair PSU's are built with high quality parts and are great durable units but Corsair really pinched the penny's with the CX series to keep the price down and sell them because of their name.
 
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bgunner

bgunner

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the only way to test the amperage is with an amp meter that loads the PSU. This little piece of equipment is very expensive and most people do not have one laying around. Sme multi meters can measure small amounts of amperage but not enough to test a PSU like this. You can test the PSU's voltage by shorting out the green wire and black wire with a paper clip as long as the PSU is not in connected to anything.
 
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J

Jaybk26

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Jan 28, 2014
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Not quite the same way. It worked the first day, but the next day the computer wouldn't turn on. I'll contact EVGA then, and consider a different PSU.
 
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