CPU & GPU temps hitting 80+ degrees C.

Mar 2, 2018
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My GPU and CPU temps are usually hitting 80+ degrees when playing games like The Witcher 3 or Warframe, the idle temp for my GPU is usually around 55-60, while CPU is around 48-51 degrees. I always read on the threads that people are getting around 60 degrees under load and about 27 degrees idle, how can I achieve that?

My setup is a pre-built Acer Aspire Gx-785, I have not done any modifications to the desktop at all.
Also, not sure whether my country's weather has to do with this but I'm living in Singapore.
 
Does that PC have any kind of airflow?
Weather does affect the temperatures, but those idle temperatures are too high.

My GPU is around 55-60 C and CPU is around 50-55C when playing games. You have those temperatures in idle.
 


Ambient temps do pay a big role, what is the average temperature in the room the computer is in?

One thing to try would be to replace the thermal paste on the CPU and GPU, and possibly getting a better cooler for the CPU, but this might void your warranty, if it's still active.
 


No it doesn't have any airflow, the only thing that is close is a CoolerMaster MF120L White fan that I installed at the side of the pc, blowing outwards.
 


I might do that if my warranty is over, but I still have about 2 1/2 years remaining before the warranty is over. At the same time, I have never applied thermal paste before and since this is my only pc I can't afford to let it break until I save up enough for a new one. I do hope that I will get to build my own pc one day though, it seems like a fun experience.
 
80c for gpu is normal. Cpu is a little hot.

As suggested, reapplying cpu thermal compound can help if current paste is getting on a bit.

Your side fan is a good attempt but air flow doesn't easily turn corners and more time for hot air build-up. Front intake and rear exhausts is most reliable with less air interference in single direction so heat is transferred easier.

Leaving the side case open and have a mini fan pointed imo be more effective than an solo side exhaust fan. Those who have lower temps do have cases with fronts/rears and top fans all going so Acer's case design has let you down a bit.
 


Yeah I'm planning on getting a new case, is there any ATX or mid ATX case that supports micro ATX mobos? Btw, won't leaving the side case open allow dust to gather in the pc more easily?
 
Most cases if not all can accommodate all form factors. Toms and Anandtech often do great case reviews, I'm sure you'll find a case to fit your size and if not simply searching google for best matx case should give you more options.

Dust takes a while to build so unless you're not too far away from compressed air atleast once a month or two i wouldn't worry about it too much, least it'll be cooler. Upto you, CPU at 80c isnt toooo bad.
 


Alright thanks for your reply
 
If you're gonna get a new case, get some case fans too.
Some cases have fans included.
Ideally you should have all fan slots occupied. Most cases have 2 or 3 in the front, 1 in the back and 2 on top. So that's 5 to 6 case fans.

Those do make a huge difference to temperatures as demonstrated by the following video
https://youtu.be/8OmkmluAYAQ

Also make sure you have enough fan headers on the motherboard.
 


Fan headers?
Edit: Oh I don't think my motherboard has enough fan headers, I only see one and that's the one that I have my side fan attached to.

 
Well, that's a problem then. You could use a splitter cable to connect 2 fans to the same header (I wouldn't recommend more than 2 on the same header).
You can also connect fans to the PSU if the fan has a molex connector, or using some molex to 3 pin adapter. The issue with this is that you won't be able to control the fan speed and, depending on the fan, it might make a lot of noise.
Some fans are relatively silent even at max speed, others aren't.