[SOLVED] Ryzen 5 3600 High idle temperature

[xerocry]

Hi,
I have Ryzen 5 3600 with cooler Scythe Mugen 5 Rev.B . I have high idle temps 50-60c with just Chrome with 10 tabs and when i start running some software or games it goes to 75c. Why?
I installed 2 intake coolers(2x Arctic P12 PWM PST ) and 1 exhaust Noctua NF-A12x25 PWM displayed on pic 1. Case in Fractal Define C. I think I applied thermal compound correctly(?). Windows 10 is on balanced plan.
Maybe fan config is wrong? Or such temps are normal for that CPU at those fans speeds?


My PC spec:
CPU & cooler: AMD Ryzen™ 5 3600 @ Scythe Mugen 5 Rev.B
Motherboard: MSI B450 TOMAHAWK MAX
RAM: 32GB (16GBx2) Crucial Ballistix 3200 MHz DDR4 DRAM Desktop Gaming Memory Kit CL16 BL2K16G32C16U4B
M.2 SSD: Crucial P5 1000 ГБ
GPU: Nvidia MSI GeForce RTX 2070 Super

Case with fans: https://imgur.com/a/932Q972
CPU stats: https://imgur.com/a/HeSmYL0
Fan Control: https://imgur.com/a/wlDRJtW

 

[Phaaze88]

That top fan doesn't really need to be there if there's all this concern over cpu temperatures.
With how you had it before, it was stealing air away from the cpu cooler.
If you've flipped it, it's now pushing air down and below the cpu cooler.

Remove it entirely, or move it further back, but facing the direction it was originally.

 

[DimkaTsv]

77-80c with CB23.

From your own words you had 83 degrees in CB... That's like 3-6 degree difference

 

[RAIDGoblin]

Thanks for the help a lot!

PC: Front look and Side look. I assume yes, I only have place for 1 fan in front because of long video card. 2 Arctics are working as intake, Noctua as exhaust.
Also, could it be that fan settings are bad and like my case needs more RPM for them constantly?

NP, it seems that lots of others have posted good advice too, while I've been asleep LOL

the only thing I will add is this: it might improve things a bit if you move the front fan downwards? (that is if your huge GPU doesn't get in the way 🤔 ) because it looks from the picture like the case has slots for fan screws lower down, on a tower case it's usually best to have all your incoming fans as low down as possible, otherwise fresh air doesn't circulate the bottom of the case

if you can move the incoming fan downwards it might be worth getting two incoming fans and putting both in the front of the case

--------
[EDIT] I think I might see your problem, on your photo of the front of the case

https://imgur.com/a/PKXGEfy

View: https://imgur.com/a/PKXGEfy

I can see the position of your outgoing fan on the top (if it is outgoing*), that is so close to your incoming fan on the front that all it will be doing is pulling the fresh air straight back out of the case before it gets to the CPU cooler

*if it's incoming it might disrupt the air flow from the fan in the front and cause the hot CPU air to circulate downwards instead of out the back

I think the ideal fan positioning for this case might be as follows:

• two incoming on the inside of the front if possible, if not only one incoming
• one outgoing on the top at the back
• one outgoing on the back (purely to extract hot CPU air)
• CPU cooler air flow front to back
• don't forget your PSU fan is removing a lot of hot air from your GPU

 

[xerocry]

NP, it seems that lots of others have posted good advice too, while I've been asleep LOL

the only thing I will add is this: it might improve things a bit if you move the front fan downwards? (that is if your huge GPU doesn't get in the way 🤔 ) because it looks from the picture like the case has slots for fan screws lower down, on a tower case it's usually best to have all your incoming fans as low down as possible, otherwise fresh air doesn't circulate the bottom of the case

if you can move the incoming fan downwards it might be worth getting two incoming fans and putting both in the front of the case

--------
[EDIT] I think I might see your problem, on your photo of the front of the case

https://imgur.com/a/PKXGEfy

View: https://imgur.com/a/PKXGEfy

I can see the position of your outgoing fan on the top (if it is outgoing*), that is so close to your incoming fan on the front that all it will be doing is pulling the fresh air straight back out of the case before it gets to the CPU cooler

*if it's incoming it might disrupt the air flow from the fan in the front and cause the hot CPU air to circulate downwards instead of out the back

I think the ideal fan positioning for this case might be as follows:

• two incoming on the inside of the front if possible, if not only one incoming
• one outgoing on the top at the back
• one outgoing on the back (purely to extract hot CPU air)
• CPU cooler air flow front to back
• don't forget your PSU fan is removing a lot of hot air from your GPU

Thanks, moved top one to back and lower temp by 5c!
Now idle is 43-50, which is fine by me, under cinebench max 75c.

Thanks all who helped in this thread! Seems like a little bit less compound, moved fans and aligning CPU fan with other fans worked nice!

 

[rolli59]

Why do you have the CPU cooler fan sucking air through the cooler? With a single fan it is always better to have the fan blowing into the cooler it is way more efficient! I belief that is your main problem!

 

[RAIDGoblin]

@rolli59 that is a good point also