PSU too hot
Hello people, its been a while already that i notice my PSU quite hot, the air it spits out is way too warm for my liking and its worrying me, plus the noise it makes indicates the fan is working really hard to release the heat.

PSU: thermaltake 600w

GTX 970

Those are my old components, the rest is all new, less than half a year.

I5 12400
MSI PRO H610M-G
16kg ram ddr4 2666

With low requirement games its fine, im currently playing dishonored and runs perfectly fine and i dont notice much heat, just the normal stuff, but as soon as i load something heavier it goes nuts, the games run just fine, and according to my temp monitors both the gpu and the cpu are withing normal temps and usage, its just the heat coming off the power supply that worries me.

What could this be ?
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Beiträge 115 von 16
_I_ 25. Nov. 2022 um 13:07 
is the psu mounted on the top or bottom of the case?
top mount psu will always be hot since its also the exhaust of all other components
bottom should be cool, unless the psu is overworked

thermaltake has some really poor psus, if its not 80+ gold, replace it
Imyo 25. Nov. 2022 um 13:49 
Ursprünglich geschrieben von _I_:
is the psu mounted on the top or bottom of the case?
top mount psu will always be hot since its also the exhaust of all other components
bottom should be cool, unless the psu is overworked

thermaltake has some really poor psus, if its not 80+ gold, replace it
On top, sad face... its a tr2 600w
All TR2 should go in the trash. Outdated fire hazzard they are. Those models are from approx 2009-2012. Should definitely not be used with modern PC hardware.
_I_ 25. Nov. 2022 um 15:26 
get a new case with bottom mount psu and psu
You should avoid cheap Thermaltakes like a plague. Chuck it into garbage before it explodes and get something decent like Seasonic, EVGA or Corsair (not Corsair VS).
What about case airflow? If the psu is being fed warm air from case components its going to run hotter than it should, you may need to address the way the air flows and the amount of airflow. (more fans)
Zuletzt bearbeitet von Carlsberg; 25. Nov. 2022 um 16:49
Ursprünglich geschrieben von Carlsberg:
What about case airflow? If the psu is being fed warm air from case components its going to run hotter than it should, you may need to address the way the air flows and the amount of airflow. (more fans)

Yeah new case won`t hurt either. Problem with top mounts is that all the hot air from CPU gets sucked into PSU as well instead of drawing cold air from outside the case like bottom mounts do.
It`s even worse when CPU has poor cooler.
Top PSU Mount Case is one reason why the PSU probably seems hotter then normal; as its literally acting as a hot-air-exhaust for hot air rising up from hot components. Your CPU might be saying 60-70*C which is not hot compared to what it can handle, but that air temp being blown out a rear exhaust fan or out the PSU would feel rather hot to your skin; as that is 140+ *F

Not to mention it's making the PSU run hotter then normal because of it acting as a hot-air-exhaust fan.

With the PSU at the bottom, it only draws cool air from the outside of the Case, not drawing hot air from inside the Case like the top-mount would be doing.

Look at a more modern Bottom Mount PSU based ATX Case, along with a better PSU, such as BeQuiet 600W Gold Certified; or perhaps something equivalent from EVGA or CORSAIR.

Fractal Design brand makes some decent budget-friendly well-rounded ATX Cases.
Zuletzt bearbeitet von Bad 💀 Motha; 25. Nov. 2022 um 18:39
Imyo 25. Nov. 2022 um 20:15 
Thank you all for the information, i had no idea bottom psu was better, i might try that first, and if it doesnt change then go for a expensive PSU alltogether. (componets are absurdly expensive in Argentina sadly)....


Just a probably absurd question but... bear with me... can i just flip the case ?
Some cases where PSU is at top , allow one or more fans on the back of the case . Also some front fans .
Zuletzt bearbeitet von smallcat; 25. Nov. 2022 um 20:36
CZI 26. Nov. 2022 um 1:24 
Ursprünglich geschrieben von _I_:
thermaltake has some really poor psus, if its not 80+ gold, replace it

Ah, my main machines PSU is from Thermaltake and caused high heat.
It's 1200w and stupidly shutdown power when UPS changed to battery mode.
Their support replied that exchange to other model, but I had no extra PSU.
Issue was still there.

I had some case fans set intake and some fans for exhaust.
But I realized the high tempratue on PSU, I changed all case fans to be intake.
Then all air goes out from PSU fan. It seems helped templature control.
i ve got a case with PSU mountable at top . It was cheap . But my PC draws little power - max 150W . We put another fan on the back of the case . No temp issues .

My CPU temp hits 59C max , the GPU - 60C max . The PSU blows cold air . One has just to choose case according to the needs .
Zuletzt bearbeitet von smallcat; 26. Nov. 2022 um 1:35
Imyo 29. Nov. 2022 um 12:01 
Ursprünglich geschrieben von smallcat:
i ve got a case with PSU mountable at top . It was cheap . But my PC draws little power - max 150W . We put another fan on the back of the case . No temp issues .

My CPU temp hits 59C max , the GPU - 60C max . The PSU blows cold air . One has just to choose case according to the needs .

I know little to nothing about cooling, but maybe you can help:

My case is a really cheap one, with 2 fans, one on the bottom/front, and one in the bottom(a bit higher)/back, both the same size, the front one draws air and the back one takes it out, wich is very close to the psu wich is on the top (back of course). The side is made of acrilic with no fans and no holes or anything, no fans on top or bottom and no holes there either.

The only place i can add a fan is on the acrilic side (i have a laser machine at my workplace so i can make a new one with anything i want. Could that help ? As i said in the original post, both gpu and cpu are really stable and very cool, but the air coming out of the psu is absurdly hot for the work i make it do wich is basic gaming, nothing fancy, at least not right now. Yesterday it started to blow hot air while watching a movie via hdmi, not too hot, but noticeable hotter than idle. Note that i live in argentina and its 35c right now, and we dont have air conditioning at home.
If the two extra fans (front and back) are not helping enough , better get a new case . Yep, it s up to you .
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