Suddenly, No GPU HDMI Output

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xkbx24

Honorable
Jan 21, 2014
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10,510
Hello everyone. Bit of a freakout moment here.

I was playing Metro: Last light for about an hour when all of a sudden, my PC shut down without warning. I had to flip the little breaker on the back of my PSU for the PC to start again, but when it fired back up, it has no video output.

My mobo doesnt have a video out for me to test so I'm kind of stuck. Also when I turn on the PC, if I try to turn it off with the power button it has no effect.

My machinee:

MOBO: Gigabyte GA-970A-UD3

CPU: AMD FX-6300

GPU: XFX HD7850 core

Mem: Kingston Hyper X 1066

PSU: Antech 450w supply.

I should mention that the GPU has been overclocked at 1050/5200 stock voltage for a little over a month with no crash or heating issues. Runs at around 67C during gaming
 
Solution
terry4536


First off, work backwards from your monitor. Verify that your monitor is working by turning the monitor power off and then back on. Your monitor default screen should come up independent of the PC.

Make sure all of your cables are connected.

Next, try reseating the RAM. Power down and then unplug the PC. Remove the RAM (be sure to ground yourself to the PC case). Clean the RAM contacts, and then reinstall the RAM. Test the PC by restoring the power and turning it on.

Next, try reseating each PCI card in turn beginning with the GPU. Test the system after each card.

Next, try reseating the...
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xkbx24

Honorable
Jan 21, 2014
10
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10,510
I'm also noticing that the heatsinks on the motherboard are ice cold and the little blue flashing led on the top of my case isn't flashing at all. Could my motherboard be fried?
 
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xkbx24

Honorable
Jan 21, 2014
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10,510
Does anyone have any opinions? I'm pretty new to PC gaming and figuring out what components may be malfunctioning. At this point I'm guessing its the mother board but I don't want to purchase one and find out its not the issue in the first place. Any advice would be greatly appreciated!
 
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terry4536

terry4536

Glorious
Mar 28, 2010
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46,265


It appears that your power supply has detected an electrical fault. Is there any sign of "life" after you reset the power supply? Are all of your fans spinning? Are the LED's lit up?

Does your monitor power up?
 
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terry4536

terry4536

Glorious
Mar 28, 2010
9,743
6
46,265


First off, work backwards from your monitor. Verify that your monitor is working by turning the monitor power off and then back on. Your monitor default screen should come up independent of the PC.

Make sure all of your cables are connected.

Next, try reseating the RAM. Power down and then unplug the PC. Remove the RAM (be sure to ground yourself to the PC case). Clean the RAM contacts, and then reinstall the RAM. Test the PC by restoring the power and turning it on.

Next, try reseating each PCI card in turn beginning with the GPU. Test the system after each card.

Next, try reseating the battery. And finally, you can try reinstalling the CPU. If all of these steps do not solve the problem, then you are down to replacing parts. It sounds like a bad GPU or motherboard. If you have another working GPU, you can eliminate the GPU by swapping it out. That also applies to RAM and the CPU. And that leaves you with a bad motherboard.

If you aren't comfortable performing these steps, take it to a PC repair shop. You can throw parts at the problem or you can take it to someone who can test each part and supply you with an estimate.
 
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