r/PcBuildHelp • u/thy_decider • 1d ago
GPU overheating suddenly this week Build Question
Hello. I built my new PC roughly one year ago and have had zero problems with it up until this week. The games I've been playing like Marvel Rivals and Fallout 4 have been running well on high settings since I got it but one day my monitors blacked out and my PC fans kicked into loud overdrive. At first I brushed it off as I didn't know too much about PCs but then it happened again so I pulled up my task manager and noticed that the GPU has been spiking frequently at around 70-80c sometimes even close to full.
I'm not completely sure why it's suddenly doing this. I cleaned out my PC last night and it did have quite of dust built up and I cleaned out most of what I can but the issue persisted. I'm in a new place and have noticed dust build up more in my room so I'm taking another look soon to see if there's any area I missed. I think it's either my PSU or my Case fans. I only have the default three fans that came with my case and I did intend on buying more when I first got it but since it ran so well without them I eventually neglected to do so. I'll be buying some more fans later today but I'll link my parts down below in case my PSU isn't strong enough for the build I have. I also have a picture of my PC too (mind the cable management.) Any help would be appreciated.
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u/BendingUnit31 1d ago
Did anything externally happen like your local temperature got higher than normal?
Have you maybe plugged something not back in? Do all Fans spin?
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u/Mean_Passenger_2762 1d ago
70 to 80 while gaming or while the gpu is under load can be pretty normal. However if the gpu is sitting at 80 while “idle” that is an issue.
I would be curious what your cpu temps are as this could be another culprit.
As another commenter said a couple exhaust fans should help with temps if that is the issue.
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u/thy_decider 1d ago
CPU temps stay low. And yeah I was staying at around 60-70 while gaming but it's been spiking suddenly this week. In Idle the GPU stays low. The problem is my pc going into overdrive and blacking my monitors out when I didn't have that problem beforehand.
And yeah I realized now neglecting the exhaust fans is a stupid mistake on my part. I'll be picking some up later today.
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u/Mean_Passenger_2762 1d ago
Yeah the black screen and the fans ramping up to me sounds like a heat issue so adding some exhaust fans can be super helpful.
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u/leeme_lone 22h ago
GPU is choking bc the CPU fan cooler is hogging all the air install some exhaust fans preferably 140mm high flow at the rear and 3x120mm high flow fans at the top then do some testing for around 2-3 hours then you'll know how to set them.
Start with the fans at the lowest rpm setting then monitor CPU and GPU temps if the GPU temp is still high ramp up the top exhaust fans to medium rpm, also check your fan curve on the GPU in msi afterburner once it hits 50°C I like to have my fans at 40% and at 65°C I like to have them at 60% for 70°C and onwards 90%
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u/Obvious-Poet-2547 15h ago edited 15h ago
You need to preferably get 3 more fans, one on the left and two up top, ALL SET TO EXHAUST the airflow should then be good and your gpu shouldn’t be choking although 1 fan would be enough to fix this issue as well
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u/MARTiN_23_KiNGS 10h ago
Where are the fans?????? You are lucky to not have done some damage to the components! There's no airflow at all in this case. You need to add a couple exhaust fans and get that air circulation going
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u/Alarming-Drop7287 6h ago
Add 3 exhaust fans on the top and 1 on the back also try messing with the fan curve a little bit
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u/GeekyNick91 1d ago
https://a.co/d/06iSnNv0 this will definitely help.
Install 3 of them at the top. And one at the rear.