CPU Cooling solution for 7950x

Kavalier

Kavalier

Kavalier

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Joined
3 Mar 2012
Posts
252
Location
Malta
Hi everyone good morning.

I am looking for some suggestions on how to better optimize my current cooling setup.
The following are the specs of my current rig.

  1. Case: View 71 Tempered Glass RGB Edition
  2. Motherboard: MSI MEG X670E ACE Motherboard ATX
  3. CPU: 7950X
  4. Graphics Card: Sapphire RX 7900 XTX Nitro+ Vapor-X 24GB GDDR6 113
  5. AIO: Antec Vortex 360
  6. Fans: Front: 3*Lian Li PC Fan 120 mm UNI FAN SL120 V2, Top(Used for AIO Radiator) Lian Li PC Fan 120 mm UNI FAN SL120 V2 and 1* Lian Li PC Fan 140 mm UNI FAN SL120 V2
With undervolting -30. my temps CPU Temps are still peeking at 90 degrees.
Could it be that the Antec Vortex is not able to dispose of the heat fast enough? Also would adding another 3 Lian Li to the Right Side help with the cooling?

Thanks for your input as always.
 
Pretty much what @mickyflinn is saying; When I was looking at ways to cool the CPU down further, I found there was nothing I could do to keep the 7950X from hitting 90C/95C once an all core load began.

The only option to really do anything about it, was to turn on Eco Mode for the CPU (105W option) otherwise, there was little to be done that could help the CPU temp. I basically had 6 Noctua A12x25's at 100%, the CPU (U12A) at 100% and Exhaust fans (also A12x25's) at 100%, and the moment an all core load came on, it was max (safe) temps automatically. With Eco 105W mode, I can run the system at near minimal fan speeds (20-40%) and the CPU (due to the limitation of 105W Eco Mode) hits 70-80C (you do lose some performance, but if you're after less noise and temps, this is the best way to go about this for this CPU).

System is:
CPU: 7950X
Motherboard: Asus Proart X670E
RAM: 128GB
GPU: Sapphire Nitro 7900 XTX
CPU Cooler: Noctua U12A
Case: Lancool III
Intake Fans: 6 x Noctua A12x25 (3 x Front, 3 x Bottom)
Exhaust Fans: 2 x Noctua A12x25 (1 x Rear, 1 x Top Rear)

:: edit ::
Of note, that the CPU (7950X) is rated to run at 90C/95C safely long term. So if the temp is not a major for you (heating up the room), you could just leave it be as well.
 
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Hmm, not used yet to have the CPU running at these temps :)
Do you recall if I get the MSI Meg, considering it has a better pump, I would see maybe lower 80s 70s?
 
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Yeah those temps are normal.. I am pretty sure that Linus/Jays2cents did a video where they tried silly watercooling (Think it was the mad industrial water chiller) and could only get the temps down a small amount even when direct to die cooling.
 
So, I did an experiment today, with both side panels removed, and dust filter top and front removed, my CPU temp are max 54 degrees!! while playing Diablo 4.
Does that mean that with the side panels close, the air is not getting out fast?
Having said that I am puzzled cause I have 3 120m as intake and 4 exhausted, 3 top(rad) and 1 140m at the back.
 
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Kavalier said:
CPU temp are max 54 degrees!! while playing Diablo 4
Click to expand...
normal for gaming load
it is not due to side panels

My personal preference is to put AIO in front to intake coolest air possible. However good the airflow is, adding not insignificant amount of watts from GPU will not improve things.
But note that even if it will cool slightly more effectively, it won't stop CPU hitting 90 deg in some situations.
 
alec said:
normal for gaming load
it is not due to side panels

My personal preference is to put AIO in front to intake coolest air possible. However good the airflow is, adding not insignificant amount of watts from GPU will not improve things.
But note that even if it will cool slightly more effectively, it won't stop CPU hitting 90 deg in some situations.
Click to expand...
I disagree, that is not normal for a 7950x. Before I was getting 85-90 degrees while gaming. So this helped a lot.
 
well then mounting AIO as intake should make comparable difference

although I still think that if you fired up cinebench during gameplay, it would still peak over 90
 
have you tried undervolting it- I manually dropped mine to 4.8 all cores with .98v and in cinebench multi core max temp is still under 55C on air
 
Mcthommo said:
have you tried undervolting it- I manually dropped mine to 4.8 all cores with .98v and in cinebench multi core max temp is still under 55C on air
Click to expand...
Yes, I did a -20 per core undervolt. With panels open temps are the following:
Normal gaming(no intense stuff) 50-55 degrees
Intense: Raid/Many activities: 60-75 degrees

This is with Panel opens. Panels closed it goes to 80-90.

If it is airflow issue, cannot understand how it is possible. The view71 is not a small case, and in my opinion got a good fans setup.
 
Hmmm, the only reason I can think of that could be causing bad airflow, is if you have banks of fans facing the wrong way, or using an all positive, or all negative pressure setup. Have you checked all fans have a flow direction? Like cool intake from front to rear or top of case? And not something like all exhausting outwards?
 
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Meddling-Monk said:
Hmmm, the only reason I can think of that could be causing bad airflow, is if you have banks of fans facing the wrong way, or using an all positive, or all negative pressure setup. Have you checked all fans have a flow direction? Like cool intake from front to rear or top of case? And not something like all exhausting outwards?
Click to expand...
Yes, fans are facing the correct way. Confirmed that multiple times.
 
Kavalier said:
Yes, fans are facing the correct way. Confirmed that multiple times.
Click to expand...
Hmmm, then the only question I have left here is, "Is this your case?"

uk.thermaltake.com

View 71 Tempered Glass RGB Edition

View 71 TG RGB is a stunning full tower case which comes with three preinstalled 140mm Riing RGB fans and can support motherboards up to E-ATX.
uk.thermaltake.com uk.thermaltake.com

Because I'm looking at that, and think you may be right earlier on; either the built up heat is not escaping fast enough, or, you're starving the insides of the case of any cooler air; you do after all have a 7900XTX there as well which will dump the heat out into the internals as well.

This might sound counter intuitive, but can you either swap your Rear Exhaust fan to become an Intake? (Easiest test to do)
Or
Swap your Exhaust fans on the top AIO to become Intake instead? (This is to test if more positive air pressure will help, or if it's an exhaust issue, but given that you already have 4 fans exhausting, it actually sounds like it's lack of cooler air available that's the issue and to move the built up heat out, and the leaky sides of this case may actually be compounding the issue somewhat if pressure is rather neutral - which it could be given 3/4 setup)

Have a go at one of those and see if it helps (my preference would be the top AIO going from Exhaust to Intake though, just to eliminate without a doubt that it's not an issue with bad airflow due to a rather neutral setup, since it's a 6/1 setup then and heat will be pushed away out the leaky gaps on the sides rather than linger inside the case waiting on the the AIO Exhaust to remove alone the CPU adn GPU temps).
 
Meddling-Monk said:
Hmmm, then the only question I have left here is, "Is this your case?"

uk.thermaltake.com

View 71 Tempered Glass RGB Edition

View 71 TG RGB is a stunning full tower case which comes with three preinstalled 140mm Riing RGB fans and can support motherboards up to E-ATX.
uk.thermaltake.com uk.thermaltake.com

Because I'm looking at that, and think you may be right earlier on; either the built up heat is not escaping fast enough, or, you're starving the insides of the case of any cooler air; you do after all have a 7900XTX there as well which will dump the heat out into the internals as well.

This might sound counter intuitive, but can you either swap your Rear Exhaust fan to become an Intake? (Easiest test to do)
Or
Swap your Exhaust fans on the top AIO to become Intake instead? (This is to test if more positive air pressure will help, or if it's an exhaust issue, but given that you already have 4 fans exhausting, it actually sounds like it's lack of cooler air available that's the issue and to move the built up heat out, and the leaky sides of this case may actually be compounding the issue somewhat if pressure is rather neutral - which it could be given 3/4 setup)

Have a go at one of those and see if it helps (my preference would be the top AIO going from Exhaust to Intake though, just to eliminate without a doubt that it's not an issue with bad airflow due to a rather neutral setup, since it's a 6/1 setup then and heat will be pushed away out the leaky gaps on the sides rather than linger inside the case waiting on the the AIO Exhaust to remove alone the CPU adn GPU temps).
Click to expand...
Hello, sorry for my late reply. Was a bit busy.

Correct that is the case that I currently have.
Will try this fan setup change this weekend and get back to you.
 
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