Entire PC refuses to turn on when new Graphics card is connected to the power.

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pezzas

Honorable
Dec 7, 2013
4
0
10,510
Hi guys,

So I've run into a bit of a problem with my custom built PC, yesterday I purchased a Nvidia GeForce GTX 760 2gb, I installed it into my system and my PC ran flawlessly for roughly 4 hours. Suddenly the computer turned off in the middle of a game and wouldn't turn back on, even after taking the graphics card out it refused to boot, in the end I had to reset my CMOS to get it to even turn on (without GPU).

I upgraded my bios believing that to be the initial problem, but it didn't make a difference. Currently my computer runs fine without the new GPU, I can even boot with the GPU in the PCI-E slot (closest to the heat sink, although I've tried both slots to no avail), HOWEVER, as soon as the power cord from my PSU is connected to my graphics card, my computer refuses to boot at all, the fans on PSU, CPU and GPU start spinning for about half a second and then nothing, any help would be greatly appreciated!

Specs:

Windows 8 (64-bit)
Asus P8Z77-M Motherboard
GeForceGTX 760 GPU
Cooler Master G-600W PSU
i7-3770 3.4ghz CPU
 
Solution
F
Hello sir

I have done some research and it is clear you have enough wattage to run it in your power supply

so i would think there must be some problem with the connection of power to graphics card be it a short circuit or a loose connection
meaning you should check the connections are secure and maybe try a different power cable to your graphics card

Hope this could possible be helpfull
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pezzas

Honorable
Dec 7, 2013
4
0
10,510


I do have a multimeter (well my dad does), I'm kinda new to all of this, could you explain what I should be looking for with the multimeter, and what the paperclip test is?
 
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FrodoMatrix

Honorable
Dec 7, 2013
5
0
10,520
Hello sir

I have done some research and it is clear you have enough wattage to run it in your power supply

so i would think there must be some problem with the connection of power to graphics card be it a short circuit or a loose connection
meaning you should check the connections are secure and maybe try a different power cable to your graphics card

Hope this could possible be helpfull
 
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Solution
P

pezzas

Honorable
Dec 7, 2013
4
0
10,510


Unfortunately I don't have another computer I can test my GPU in, but wouldn't the fact that it was working initially mean that the card should be ok? also when I plug it into my motherboard and boot my PC the fans still work, but yeah as soon as I try boot with the power cable connected, I get nothing.

I think you may be onto something with the power cable, this is just really annoying considering I've only had the PSU for about 2 weeks.
 
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P

pezzas

Honorable
Dec 7, 2013
4
0
10,510
Thanks for the feedback everyone, I guess I'll just have to take my PSU and GPU back to the shop I bought them from and try get a refund or something.
 
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