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Possible gpu failure

redkrptonite

redkrptonite

redkrptonite

Associate
Joined
12 Jul 2016
Posts
511
Location
Leicester
Hi guys. I think my 3090 is dead. I was having a gaming session last night when all of a sudden my pc shut down and wouldn’t power on again. The only way I could get my pc to boot was to remove the power cables from the gpu. As soon as I reconnect them it doesn’t power on again. Motherboard standby lights are lit up though. My gpu is on a riser cable but even with that detached it still won’t power hence the reason I think it’s the gpu. What do you guys think? It’s in a water loop so I’m probably not gonna be able to rma.
 
Purgatory said:
Which model and brand is the 3090 ?

Are you sure it's not a PSU issue too ?

What are the full specs of your system ?
Click to expand...

Thanks for your help guys. My specs are 5950x, asus strix oc 3090, 32gb gskill ram, asus hero viii motherboard. My powersupply is a phanteks revolt x 1200w. The gpu is fitted with a ek block and in the same loop as cpu. 2x420mm rads and 1x 280mm rad. I think I’ll just drain down and try to fit the original cooler. See if I can see any damage and try to rma. I was actually playing destiny 2 when it shut down. No wonder :p
 
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Purgatory said:
Are any leds lighting up at the PCIE power connectors on the ASUS STRIX 3090 ? When you start the system up look at the back of the card under each PCIE power connector if an LED is lighting up under any of them.
Like on this video the lights blinking or they maybe just on and solid red. If they are on it could mean a power supply issue, you will need to check the manual if they are on and what they are doing and the order the light up with and if flashing or solid on.

Watch this video from the 3 minute point he talks about the leds and power connectors on them.



Showing where the leds are.


B2ZcRT0.jpg
Click to expand...

Actually I think they were on. I could see a solid red light. I thought it was a reflection from my motherboard. Will check again when I get home. I didn’t realise they had leds there.
 
So I retried my pc when I got home. The leds do not light up when connected to 12v rail on the power supply but do illuminate when disconnected from it. Pc still will only boot when gpu is disconnected from the 12v rails. So the question is gpu or power supply. How can I test without another gpu or power supply?
 
Purgatory said:
If you're getting video when removing the 3x8pin power connectors I would try a different psu first. Not sure where you purchased the psu and gpu from but if from okuk maybe send both back for them to test which is causing the problem if you don't have another psu or gpu to test with or another computer you can test the gpu on.
Click to expand...
No I’m not getting video my cpu hasn’t got intergrated graphics. It just tries to post and keeps looping until it comes up with an error code.
 
Sarge2255 said:
What motherboard do you use?
As you can check the user manual to see what the diagnosis LEDs say i.e. to see if the RAM or CPU are working properly, as if they are shot, then your system would not boot as well.

Some motherboards have diagnosis leds that change colour to point out which component is causing the non boot of your computer.
Click to expand...
It won’t post when the powers connected to the gpu. It’s just dead. It only posts when the power to the gpubis disconnected and then it just comes up with a gpu error code.
 
Purgatory said:
If you don't know how to test with a multimeter then don't because you will cause more damage and the equipment needs to be powered up to test in most cases, if it doesn't show a clear sign of a short.

Also I would send the GPU back to the retailer for testing first and if it needs to be rma-ed then they can do it as it will cost you to send it and insure it. Make sure to put back the original cooler as it was. If you have removed any warranty stickers then you might have cause yourself a very expensive mistake by adding a water cooler.
Click to expand...

ok I will do that. There’s a screwdriver hole through the warranty sticker so I’m probably going to be unlucky.
 
Thanks everyone for your help. I think I will drain down and send it back. I wanted an active backplate anyway. Thanks again everyone. Hopefully I have some luck on returning and if not it’s my fault I guess.
 
Actually I never thought of trying a different pcie express slot. The card is on a riser cable so I will try another slot when I get back. Maybe I should contact Asus technical see what they say. It is there motherboard and gpu so may know what could be causing it.
 
I’ve literally just sold a riser cable as well. I’m using one of those link up 4.0 riser cables now. I can’t get the gpu in a slot with the air cooler on as it hits the reservoir. Maybe I can see if I can borrow a different riser cable from someone.
 
Well it’s all packed up ready to go. No visual damage what so ever to the pcb. I was fearing the worse. Hopefully with a bit of luck it will be fixed.
 
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Just an update. It was a failure on the gpu. A replacement has been sent out and should be with me today. Not bad at all. It only got collected Monday. Thanks everyone for your input. It was really appreciated.
 
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