Solved GPU stops working, monitor goes black.

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sasig

PCHF Member
Sep 28, 2024
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Hello!

Yesterday i cleaned my radiator with a compressor since it was all clogged . When i reconnected my PC back after a while or when starting any game ( GPU load ) both my monitors connected to my GPU went black. The PC was still running and i could still hear the sounds, to fix this i had to restart my PC. Sometimes the issue appears even in boot screen or when i try to enter bios. My system is not OC. I tried reinstalling nvidia drivers which didn't help.

When i connect the monitors to integrated graphics all works well ( i didn't try gaming but IDLE and browsing seems to work, LOL crashed when i tried it. ).
What i have to try is connect my GPU to any friend that has a compatible gpu ( most of them have only 6pin while gpu takes 12 pin, i assume ).
What i also noticed is when IDLE my GPU temp is 82C on Kraken X liquid ( which shows 50-60C ), does the GPU turn itself off to protect from high temp?
What would be the best way to troubleshoot this?
Thank you for all the help!

Below are the specs :

CPU
AMD Ryzen 7 7800X3D

GPU
AMD Radeon(TM) Graphics
NVIDIA GeForce RTX 2080 Ti 12GB

Motherboard
Gigabyte B650 AORUS ELITE AX

RAM
Corsair CMK64GX5M2B5600Z40 DDR5
Corsair CMK64GX5M2B5600Z40 DDR5

PSU
Dark Power Pro 1200W
 
sasig said:
CPU
AMD Ryzen 7 7800X3D

RAM
Corsair CMK64GX5M2B5600Z40 DDR5
Corsair CMK64GX5M2B5600Z40 DDR5
Click to expand...

Possibly a coincidence but it needs checking.

The RAM is not appropriate for your CPU, AMD state here up to 5200MHz/MT/s and if you have EXPO/XMP enabled the RAM will get auto OCd past what the CPU can handle and if not immediately at some point the PC will become unstable.

As a starting point.

Reseat the GPU.

Reseat the both sticks of RAM.

Check that all internal connections are secure.

Check that there is no kink in the liquid cooling hose.

Restore the MBs default factory settings in the BIOS, they are sometimes listed as one of the following " factory defaults" "most stable" or on newer boards "optimized" please note that if you have both the "most stable" and the "optimized" options in the BIOS you should choose the most stable" option as in this instance the "optimized" settings are a form of overclocking that can cause instability.

Save the new settings, exit the BIOS, restart the computer, test by using the computer as you normally would.

sasig said:
What i also noticed is when IDLE my GPU temp is 82C on Kraken X liquid ( which shows 50-60C ), does the GPU turn itself off to protect from high temp?
Click to expand...

You will have to excuse me because liquid cooling is normally associated with overclocking which happens to be a pet hate of mine meaning that I know very little about it, are you saying above that you have a liquid cooler on your GPU, let us know when you post back with an update once you have done all of the above.
 
phillpower2 said:
Possibly a coincidence but it needs checking.

The RAM is not appropriate for your CPU, AMD state here up to 5200MHz/MT/s and if you have EXPO/XMP enabled the RAM will get auto OCd past what the CPU can handle and if not immediately at some point the PC will become unstable.

As a starting point.

Reseat the GPU.

Reseat the both sticks of RAM.

Check that all internal connections are secure.

Check that there is no kink in the liquid cooling hose.

Restore the MBs default factory settings in the BIOS, they are sometimes listed as one of the following " factory defaults" "most stable" or on newer boards "optimized" please note that if you have both the "most stable" and the "optimized" options in the BIOS you should choose the most stable" option as in this instance the "optimized" settings are a form of overclocking that can cause instability.

Save the new settings, exit the BIOS, restart the computer, test by using the computer as you normally would.



You will have to excuse me because liquid cooling is normally associated with overclocking which happens to be a pet hate of mine meaning that I know very little about it, are you saying above that you have a liquid cooler on your GP, let us know when you post back with an update once you have done all of the above.
Click to expand...
Will reset CMOS and setup BIOS, I've rebuilt and cleaned the whole PC including the PSU. Internals should be okay. About the RAM the PC was working fine without any issues until now, i am on expo 5600 and it's working amazing. As said, when i am on integrated GPU all seems normal. I am on liquid cooler just because it's quieter, the stock double fans the GPU came with were very loud even on IDLE, the system is not overclocked at all except the EXPO but was working fine until recently so i am afraid of a possible (short?). I have also inspected the GPU and PSU and nothing seems to be burnt. Will update you when im done with BIOS.
 
sasig said:
I've rebuilt and cleaned the whole PC including the PSU. Internals should be okay.
Click to expand...

Unless you are a fully qualified electrician or tech you should never ever open up a PSU, even after being disconnected from the wall socket the inner circuits of a PSU can still be holding enough charge to kill a person.

sasig said:
About the RAM the PC was working fine without any issues until now, i am on expo 5600 and it's working amazing. As said, when i am on integrated GPU all seems normal
Click to expand...

Sorry but I have lost count the amount of computers that I have either built or repaired and when it comes to troubleshooting the first thing that you do is knock off any overclocking, just like using a weak PSU that may initially work with an add on GPU the GPU will eventually die and likewise using too fast a speed of RAM may work for so long and then out of nowhere it will start causing you grief.

Can I ask that you do not quote every reply as we have to read the full post to make sure nothing gets missed,, thanks.
 
phillpower2 said:
Unless you are a fully qualified electrician or tech you should never ever open up a PSU, even after being disconnected from the wall socket the inner circuits of a PSU can still be holding enough charge to kill a person.



Sorry but I have lost count the amount of computers that I have either built or repaired and when it comes to troubleshooting the first thing that you do is knock off any overclocking, just like using a weak PSU that may initially work with an add on GPU the GPU will eventually die and likewise using too fast a speed of RAM may work for so long and then out of nowhere it will start causing you grief.

Can I ask that you do not quote every reply as we have to read the full post to make sure nothing gets missed,, thanks.
Click to expand...
After BIOS reset the GPU doesn't seem to even get past the splash screen. After the splash screen monitors lose GPU signal. I assume if it would be RAM issues i couldn't run the PC on integrated graphics as well? I'm just puzzled as to what it could be. Im trying to find someone thats on 12pin GPU so i can test it on their PC. Is it possible its a PSU issue when the GPU starts drawing more power?
 
phillpower2 said:
Check that there is no kink in the liquid cooling hose.
Click to expand...

Have you done this.

phillpower2 said:
are you saying above that you have a liquid cooler on your GPU,
Click to expand...

Can you also answer this.

sasig said:
Im trying to find someone thats on 12pin GPU so i can test it on their PC. Is it possible its a PSU issue when the GPU starts drawing more power?
Click to expand...

No way is this a lack of power from the PSU, a faulty cable possible but not a weak PSU.

Two additional things that you should do;

Disconnect one of the monitors from the GPU.

Make sure that the Windows Power Plan is set to Balanced, Ultra and High Performance are a form of overclocking that is known to cause stability and overheating issues, the setting should only be used for gaming type notebooks that have a discrete GPU that needs the extra power.
 
The cooling hose is okay. The system i am using is kraken-x63, its mounted on NZXT Kraken G12 bracket ( the cooler is made for CPU's but with the bracket i can use it on GPU, it gave me very cool temps and was quiet ). I am only using liquid cooling on the GPU yes. I've already tried DC the monitors and the same thing happens no matter if i use HDMI port or DP port. Windows plan was set to max performance ( always used that with no issues ), will set to balanced and reset and report back if there is any change.
 
After restart, i've left it idle for around 5 minutes. Temps were okay. When i launched a game ( insurgency sandstorm ), ingame FPS ( in main menu) instantly started dropping to 10, after 10 seconds or so the monitor turned black and no signal was sent to it. Tomorrow i will get my brothers GPU ( 1060 3GB ) and i will try to run with that.
 
Sounds like the GPU could be bricked, can I ask what fan header on the MB you have the cooler hooked up to, what are the RPMs reported for the pump and is there any odd noises coming from the pump.
 
For the brackets it's using this kind (the picture is not of my GPU just the U shaped brackets, also known as ""A"" brackets as found on the products website ) of brackets, which are directly mounted to the cooler thru the Kraken g12. The pump seems to be working in order, i could try and find the old stock cooler but i don't know if i still have thermal pads that came with it ( if even needed and if it will help ). Will do a restart and report on the RPM's.
 
Hmmm, when it comes to RPM's i have no idea. I have a bit of a "ghheto" setup and my radiator fans are connected to to MOBO pins but the CAM software is not pickup them up. The radiator is cool, the fans are spinning. The GPU is not as hot to the touch, the sofware is reporting 60C. I've tried multiple headers on the mobo and non of them seems to get my software to read the RPM's. However in BIOS it says its running at ~1k RPM.
 
Update on the above :

BIOS reads :
CPU FAN : 900RPM
SYS FAN 1,2 ( radiator fans ) : ~900RPM
PUMP FAN : ~1000RPM

Tried to run a very easy game ( browser game port ) and in a couple of seconds radiator FAN RPM spiked, game started to lag and screen went blank.
 
Do you have an air or a liquid cooler on the CPU.

Edit to add;

If using a computer and not a mobile phone, you have five minutes to edit a post, so please avoid adding multiple posts while waiting for us to reply to your last, edit your last post to include anything that you wish to add, this will ensure nothing gets overlooked which can sometimes happen if a thread has more than one page,.
 
CPU is cooled by air. More specifically nh-d12l, mounted with AM5 brackets. Double fans that are connected to one pin.
 
yes, underneath the 24 pin connector. Now that i take a look at it that's actually the pump fan pin! and the PUMP pin is connected to sys3 pin slot. This changes things. I will correct the pins, will edit this post in a minute.
 
5 minutes were up so i cant edit the post anymore. Safe to say when 15th paycheck hits you guys are getting a small dono from me!
The radiator fans were plugged into the pump port, i have no idea what changed from before but for some reason this wasn't working anymore after the radiator cleanup. I had them setup the same way before so i guess this is why i missed this! I've tried it on games and everything seems to be working!

Thank you for your time and patience!
Consider this resolved!
 
Glad that we were able to help and thank you for letting us know that the issue is now resolved 👍
 
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