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My PSU blew last week - did it kill my graphics cards

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  • Computers
  • Graphics Cards
  • Components
Last response: in Components
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September 3, 2014 5:17:04 PM

I used to run dual 560 Ti graphics cards. Last week, my PSU stopped working. I bought a new one and, after lots of trial and error, I can get my computer to start perfectly when no video cards are attached. I have tried plugging in each video card into the computer individually, in either slots on the motherboard, but nothing seems to work. Any advice?

More about : psu blew week kill graphics cards

a c 923 U Graphics card
September 3, 2014 5:49:33 PM

Try clearing the CMOS.
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September 3, 2014 7:54:08 PM

SR-71 Blackbird said:
Try clearing the CMOS.


Tried it, but it still doesn't work.
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a c 923 U Graphics card
September 3, 2014 7:56:40 PM

Did the PSU blow up or just die on you?
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September 3, 2014 8:03:30 PM

SR-71 Blackbird said:
Did the PSU blow up or just die on you?


Stopped working, but it made all the lights in the apartment dim when it did.
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a c 923 U Graphics card
September 3, 2014 8:05:53 PM

The surge may have damaged the board , my ASUS Hero , was toasted by a power surge in my computer room.The lights dimmed for a second then my computer just shut down.Took it apart , everything was fine but board was dead. :( 
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a c 209 U Graphics card
September 3, 2014 8:07:14 PM

Try the cards in another rig, friend's, co-worker, etc (individually)
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a c 923 U Graphics card
September 3, 2014 8:07:48 PM

+1 ^
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September 3, 2014 8:08:22 PM

SR-71 Blackbird said:
The surge may have damaged the board , my ASUS Hero , was toasted by a power surge in my computer room.The lights dimmed for a second then my computer just shut down.Took it apart , everything was fine but board was dead. :( 


The board works fine, as long as I don't have a graphics card plugged in. Would this be consistent with damage from a power surge?
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a c 923 U Graphics card
September 3, 2014 8:09:45 PM

Might or might not be , try Tradesman's suggestion.

He really knows his boards. :D 
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a c 209 U Graphics card
September 3, 2014 8:18:39 PM

It could yes, you had power going to the cards, both with the power cable and the power that runs through the PCI-E slot itself, hoping not but the PSU possibly sent a surge through the cable and fried the card(s) but mobo itself could be fine (any melting look to the PCI-E power sockets on the cards?)
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September 3, 2014 8:42:07 PM

Tradesman1 said:
It could yes, you had power going to the cards, both with the power cable and the power that runs through the PCI-E slot itself, hoping not but the PSU possibly sent a surge through the cable and fried the card(s) but mobo itself could be fine (any melting look to the PCI-E power sockets on the cards?)


No sign of burns on either of the cards or either of the PCI-E sockets. I will try to find a computer to plug in the video cards to test them, but since I have moved to another city it may be hard to find someone. I may end up just sending the computer to a repair store.
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a c 209 U Graphics card
September 3, 2014 8:44:28 PM

What mobo/CPU?
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September 3, 2014 8:57:30 PM

Tradesman1 said:
What mobo/CPU?


MOBO is Z87-GD65 Gaming
CPU is i5-4670k CPU @ 3.40GHz
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a c 209 U Graphics card
September 3, 2014 9:01:04 PM

Might pull the GPUs, reset the CMOS, plug into the mobo graphics ports and see if you can get into BIOS, if so check for primary graphics input and ensure it's set to PCI-E, save, exit, shutdown and try one card, make sure the power is attached snugly and try
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September 4, 2014 1:47:45 PM

Tradesman1 said:
Might pull the GPUs, reset the CMOS, plug into the mobo graphics ports and see if you can get into BIOS, if so check for primary graphics input and ensure it's set to PCI-E, save, exit, shutdown and try one card, make sure the power is attached snugly and try


I got to the BIOS and it was already set to PCI-E. What I did was switch it to integrated video, and was then able to boot with the video card attached. The video card was recognized by the system and I was also able to attempt to download the most up to date driver. I had to leave the computer to come to work, but I will try to work with it again tonight. I appreciate the help.
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September 4, 2014 5:22:10 PM

Now computer is crashing when I try to load a game. It says the video card stops responding but has recovered. Guess I will buy a video card. Any recommendations?
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a c 209 U Graphics card
September 4, 2014 5:52:49 PM

Somethings sounds at least semi fried, if you can find someone with a rig to try them in would help or maybe try a shop just to test the GPU, if they are OKy will prob narrow it down to the mobo itself, or see that for sure it's GPU
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September 4, 2014 6:07:06 PM

Tradesman1 said:
Somethings sounds at least semi fried, if you can find someone with a rig to try them in would help or maybe try a shop just to test the GPU, if they are OKy will prob narrow it down to the mobo itself, or see that for sure it's GPU


Ok thanks, I will go to a stre. I had 2 GPU's in SLI. both have the same problem. Maybe that is an indicator the the problem is the mobo. It is a shame, because I bought this mobo about 5 months ago.
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a c 209 U Graphics card
September 4, 2014 6:44:55 PM

Keep us updated (and check the warranty on your PSU, it may cover damages, (don't hold your breath)
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September 5, 2014 11:21:48 AM

Tradesman1 said:
Somethings sounds at least semi fried, if you can find someone with a rig to try them in would help or maybe try a shop just to test the GPU, if they are OKy will prob narrow it down to the mobo itself, or see that for sure it's GPU


I had an older motherboard and processor lying arround and I set up the computer using them. I was able to install Windows 8.1 perfectly and then when I went to install the video card, the computer stopped restarting. I guess the video cards are the problem. I just find it odd that both video cards got equally fried by any surge.

Any suggestions for a replacement video card in the range of the 560 Ti that I was using? I am not partial to either Radeon or Nvidia and am willing to upgrade a little.

At the moment, I only play EVE Online, which I do not think requires a strong video card.
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a c 209 U Graphics card
September 5, 2014 1:44:32 PM

Budget? Try to equate the 2 TIs vs new, maybe a 760, the Asus CU is about $260 and they had a rebate on that the other day
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September 5, 2014 2:56:40 PM

I am becoming deeply discouraged.

I bought a R8 280x and an SSD drive. I install everything without the video card installed and it works fine. I plug in the new video card and the peripherals won't work (keyboard, mouse of screen).

I have changed almost everything. Tried two different motherboards and CPUs; bought a new PSU; new operating system; new hard drive...
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a c 923 U Graphics card
September 5, 2014 3:00:13 PM

Must be the board slot was damaged by a surge.
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September 5, 2014 3:03:38 PM

SR-71 Blackbird said:
Must be the board slot was damaged by a surge.


But I tried a different board too.
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a c 923 U Graphics card
September 5, 2014 3:05:38 PM

Oh sorry I missed that.

Can't believe it won't run for you.
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September 5, 2014 3:16:23 PM

Back on the other board again and nothing. Could it be the RAM? It is really the only thing I didn't change. Only problem with that proposition is that the computer works fine with the ram installed, as long as the graphics card is not plugged.
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a c 923 U Graphics card
September 5, 2014 3:17:33 PM

I agree that is very strange.
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September 7, 2014 1:23:44 PM

So I changed the motherboard and everything works fine now. The surge killed the PSU, both video cards and the motherboard. Thanks for your patience and help guys.
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a c 209 U Graphics card
September 7, 2014 1:28:17 PM

No worries on our end, best to try all you can....bummer on the fried parts :( 
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!