Monitor gets no signal from GPU, is my card broken?

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snipars

snipars

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May 16, 2014
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I've been reading threads on this issue for the last half hour, yet none of them can fix my problem.
Recently I've been having my screen go black for maybe 10 seconds at atime, usually while gaming. Waiting a bit or moving the hdmi turned it back to its normal state. Specs here:
Radeon 7870 GHZ edition by XFX
Amd 6350 black edition (3.9ghz)
Seasonic 620W power supply.
GA-990FXA-UD5 mobo.

When I turned on my pc today, the on light came on, you could hear the fans turn on, but my monitor wouldn't detect any signal. When I switched to dvi, still nothing. When I connected my laptop via hdmi, it worked fine, so I knew my monitor wasn't the problem, but with no IGP I couldn't check the mobo, and it seems like my GPU is broken, even though its fan spins. Any suggestions?
 
Solution
Tom Tancredi
1) I would swap with the other rig the PSU as suggest just to MAKE SURE (we can't be absolute because we 'know' we need to test to prove things) it isn't the PSU
2) Your not getting BIOS correct? Your not indicating if your 'pass/fail' point is just not getting Windows or you can't even get BIOS. When testing hardware we don't care about software, we focus on hardware, and BIOS is the test point for anything.
3) If you tested the PSU and you can not get to BIOS then you need to 'BREADBOARD' everything. That means totally dismantaling everything out of the case and starting from scratch.
A) Place the mobo on a piece of wood or cardboard box
B) plug in CPU
C) plug in one RAM
D) seat GPU and if you can go as low as VGA...
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anoori9000

anoori9000

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Sep 28, 2013
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Is the card overclocked? When the card is under to much stress, it will crash. Usually going black means its crashing. It could be too hot as well.

As for not even starting up, you could have fried it when you overclocked it, if you did.

If you didn't OC, then send it back and get a new one.
 
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snipars

snipars

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May 16, 2014
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4,510
Ok, Update. I used another rig and swapped cards. I put a 280X in mine and no dice. When I put my card in the other PC, it worked fine, I saw everything, and it was low res b/c it had no drivers.
Now what? Does this mean it's a motherboard issue? Why does it only affect my gpu, and why do the GPU fans spin if it doesnt even give a dvi or hdmi signal off?
 
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snipars

snipars

Reputable
May 16, 2014
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4,510

Power supply worked fine before, I had to RMA a previous one, so this one's even newer, so I doubt it is the PSU. Also, I tried it with every slot in the board, none of them turned the screen on.

 
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Tom Tancredi

Tom Tancredi

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May 9, 2013
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1) I would swap with the other rig the PSU as suggest just to MAKE SURE (we can't be absolute because we 'know' we need to test to prove things) it isn't the PSU
2) Your not getting BIOS correct? Your not indicating if your 'pass/fail' point is just not getting Windows or you can't even get BIOS. When testing hardware we don't care about software, we focus on hardware, and BIOS is the test point for anything.
3) If you tested the PSU and you can not get to BIOS then you need to 'BREADBOARD' everything. That means totally dismantaling everything out of the case and starting from scratch.
A) Place the mobo on a piece of wood or cardboard box
B) plug in CPU
C) plug in one RAM
D) seat GPU and if you can go as low as VGA to a VGA output that would be helpful, but I think HDMI would be choice #2 as the video connection here.
E) Plug in power switch from case to Mobo, then plug in PSU to Mobo ONLY
Can you get BIOS when powering on? If not then one part here is broken. As you tested the GPU we know it isn't that, and IF you tested PSU before then it isn't that, if you haven't then you would NEED TO NOW!
F) If still no joy with different GPU and Different PSU, then move the 1 RAM stick between different slots, any luck? If no try other RAM stick, again same process. Still no luck? Then remove the one RAM stick and power on, does system beep Error Code for problem with RAM, if NOT then the Mobo is probably DEAD.
G) stick RAM back in, remove CPU, power on, do you get Beep Error Code for CPU problem? If NO then Mobo confirmed dead, if YES then CPU is dead.

Either case if your getting down to F and G I would say dont' bother you need a new PC at this point. Seen i5 on slickdeals.net for only $349, swap the PSU and GPu and your good, for very little cost.
 
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