Go Back   OC3D Forums > [OC3D] Cooling Forum > Liquid Cooling
Reply
 
Thread Tools Display Modes
 
  #1  
Old 13-01-19, 10:48 AM
trawetSluaP's Avatar
trawetSluaP trawetSluaP is offline
OC3D Crew
 
Join Date: Apr 2014
Posts: 521
GPU Temps high in custom loop?

Hi all.

Am posting regarding the build in my signature.

Currently I have three radiators - one on top exhausting, one of bottom exhausting and one on front as an intake.

CPU is overclocked to 4.6GHz at 1.18v and temps reach around 70C when gaming and GPU reaches around 50C.

Some people have commented saying my GPU is getting a bit too hot for the cooling I have in place. Would you agree?

If so the only thing I can think that would improve temps is to remove the front radiator as it is currently exhausting the hot air into the case. Maybe the temps will be better if I take it out and allow the case fans to blow cool air into the case.

What would be your opinions?

Thanks,
Paul

__________________
Enthoo Elite | i9-7900X | Rampage VI Extreme | Dominator Platinum 32GB | RTX 2080 FE | 960 Pro 512GB, 840 Evo 250GB x 2 | EVGA SuperNOVA 1200 P2 | PG279Q, MX27AQ | Custom Watercooling Loop + Aquaero 6 XT

Reply With Quote
  #2  
Old 13-01-19, 10:58 AM
tolagarf's Avatar
tolagarf tolagarf is offline
OC3D Crew
 
Join Date: Jun 2013
Location: Denmark
Posts: 848
Quote:
Originally Posted by trawetSluaP View Post
Hi all.

Am posting regarding the build in my signature.

Currently I have three radiators - one on top exhausting, one of bottom exhausting and one on front as an intake.

CPU is overclocked to 4.6GHz at 1.18v and temps reach around 70C when gaming and GPU reaches around 50C.

Some people have commented saying my GPU is getting a bit too hot for the cooling I have in place. Would you agree?

If so the only thing I can think that would improve temps is to remove the front radiator as it is currently exhausting the hot air into the case. Maybe the temps will be better if I take it out and allow the case fans to blow cool air into the case.

What would be your opinions?

Thanks,
Paul
Your front radiator is probably the one getting the best cooling since you're blowing cool air directly onto it.

Your GPU temperatures seem pretty decent though, and sure you might be able to get them even lower, but I would say it depends a lot on your water block, pump speed, and head pressure, and what kind of fans you're using. As a general rule adding more radiator surface area than needed won't really lower the temperatures of your components, but give you the ability to run your fans at a lower speed.
Reply With Quote
  #3  
Old 13-01-19, 11:02 AM
trawetSluaP's Avatar
trawetSluaP trawetSluaP is offline
OC3D Crew
 
Join Date: Apr 2014
Posts: 521
Quote:
Originally Posted by tolagarf View Post
Your front radiator is probably the one getting the best cooling since you're blowing cool air directly onto it.

Your GPU temperatures seem pretty decent though, and sure you might be able to get them even lower, but I would say it depends a lot on your water block, pump speed, and head pressure, and what kind of fans you're using. As a general rule adding more radiator surface area than needed won't really lower the temperatures of your components, but give you the ability to run your fans at a lower speed.
Good point, I had concentrated on the fact the other radiators where taking in heat from the front one.

Pump is running at full speed (EK D5), the fans are bequiet! Silent Wings 3 and blocks are EK Supremacy/Vector.

When at full load the fans are running in the 1200rpm region.

I suppose the fact my house can be quite stuff and there's not a flow of cool air reaching the case also has an impact.
__________________
Enthoo Elite | i9-7900X | Rampage VI Extreme | Dominator Platinum 32GB | RTX 2080 FE | 960 Pro 512GB, 840 Evo 250GB x 2 | EVGA SuperNOVA 1200 P2 | PG279Q, MX27AQ | Custom Watercooling Loop + Aquaero 6 XT

Reply With Quote
  #4  
Old 13-01-19, 11:02 AM
tgrech tgrech is online now
OC3D Elite
 
Join Date: Jun 2013
Location: UK
Posts: 1,405
We'd need to know the loop set up really, but 50C isn't anything to be getting worried about, it's not going to have any impact on performance or product longevity, probably not noise either really. But if it's not just that the GPU block comes after the CPU block in your loop(Assuming one loop), it could also be the thermal compound or something when so close to ambient, too much, too little, not the best stuff or just not really "set" yet.

Edit: Laser thermometers are like £5 on eBay and would probably help you work out the heat flow abit better.
Reply With Quote
  #5  
Old 14-01-19, 09:01 AM
Warchild Warchild is offline
OC3D Elite
 
Join Date: Feb 2013
Location: Norway, Oslo
Posts: 5,388
50C is fine. I wouldn't even consider changing anything.

Problem is, since its a custom loop, you have left out an immense amount of info.
Radiator size 120/240/360, fan speeds, flow speed in GPM if you know it.

Personally I would prefer the front rad and lower rads as intake, and the top as an exhaust. And a chasis fan at the upper back of case as exhaust also. Since warm air rises you will have a uniform flow throughout the case. However it wouldn't affect your temperature that much.

Now if you said fan speeds were 80% PWM or higher, and GPU is still 50C, then I would think something is wrong. But if its 60% PWM or lower, I see no problem at all, and would even OC your GPU a little if you could. Again depends on fan speeds, and quantities etc.
Reply With Quote
  #6  
Old 14-01-19, 09:30 AM
tinytomlogan's Avatar
tinytomlogan tinytomlogan is online now
The Guvnor
 
Join Date: Dec 2007
Location: TTL Towers
Posts: 20,929
Just a note on forum etiquette

Sig specs change - so always post your specs in the post body - even if it does just mean copy and pasting
__________________
If you recommend a product LINK THE REVIEW


Get along or run along. Your choice
Reply With Quote
  #7  
Old 14-01-19, 11:30 AM
Kei's Avatar
Kei Kei is offline
Advanced Member
 
Join Date: Apr 2013
Location: South Wales
Posts: 491
The ambient temperature of the room and also the ambient temperature inside the case will have a profound effect. Measure a delta versus the internal case temp and the component temp and then a delta between internal case temp and room ambient.

I know in my case, I had to move it out from under my desk as the delta on ambient to in case was around 8-12 degrees so even with a 15 degree delta on the gpu and a 30 degree delta on the cpu, temps were very high as internal case temps were getting to around 38 degrees. The air coming out the exhaust vent above the radiator was just over 40 degrees. I moved my case to a more open location and removed a lot of the excessively restrictive dust filters and dropped over 15 degrees off the cpu and gpu temps.

With good airflow, the internal case temp should be no more than 4-5 degrees warmer than the room, obviously the lower the difference the better.If your case temperatures are good, and your component delta is high, it's possible you have either poor flow or poor heat transfer from a bad mount. (TIM not doing it's job) With all that said, 50 on the gpu is not excessive nor is 70 on the cpu.
__________________
Gigabyte Aorus X399 Gaming 7 ⁞⁞ Ryzen TR 1920x ⁞⁞ EK Blocks + αcool XT45 rads ⁞⁞ AMD Radeon Vega 56 ⁞⁞ 32GB 8 Pack 3200C14 ⁞⁞ Enthoo Primo
Seasonic Prime 750W ⁞⁞ Polaris 961 256GB ⁞⁞ 850 Pro 512GB ⁞⁞ M500 240GB ⁞⁞ WD Se 4TB & 1TB x2 ⁞⁞ Samsung C27HG70 + Dell 2408WFP
Ducky Shine 5 ⁞⁞ AJA Kona LSe ⁞⁞ RME HDSPe AIO ⁞⁞ Marantz AV7701 ⁞⁞ Tannoy SRM 10B ⁞⁞ AKG K601 ⁞⁞ Beyer DT770

Reply With Quote
  #8  
Old 14-01-19, 12:30 PM
AlienALX's Avatar
AlienALX AlienALX is online now
OC3D Elite
 
Join Date: Mar 2015
Location: West Sussex
Posts: 12,809
Given you have so many rads have you made absolutely sure they are all burped and you are using all of them?

You also need to bear in mind that when running RT the 2080 will get hot like you wouldn't believe. Think Fermi...

My Titan XP usually hovers in the 40s under a 240 rad (it was alone in its own loop then) but I have seen it venture into the 50s with something really heavy. That doesn't concern me. I've not (yet) had a card expire when under water, meaning I must be doing something right. IMO it's driving the card into the 80s, then letting it cool down repeatedly that kills them.
__________________
"Those really high 20 series prices are just place holders"



Reply With Quote
  #9  
Old 14-01-19, 02:28 PM
trawetSluaP's Avatar
trawetSluaP trawetSluaP is offline
OC3D Crew
 
Join Date: Apr 2014
Posts: 521
OK, so more info.

1 x 360 Rad at top of case.

2 x 420 on front and bottom.

EK Supremacy and Vector blocks with a D5 Pump/Res combo.

Silent Wings 3 fans in push pull on all rads.

Speed is between 60-70% depending on water temps.

I have no way of measuring ambient or case temps.

The card is OC'd on both core and memory.

Gonna change the bottom rad to intake as others have suggested and see if it helps a bit.

Tom, will keep that in mind for future posts, thanks.
__________________
Enthoo Elite | i9-7900X | Rampage VI Extreme | Dominator Platinum 32GB | RTX 2080 FE | 960 Pro 512GB, 840 Evo 250GB x 2 | EVGA SuperNOVA 1200 P2 | PG279Q, MX27AQ | Custom Watercooling Loop + Aquaero 6 XT

Reply With Quote
  #10  
Old 14-01-19, 02:37 PM
Kaapstad's Avatar
Kaapstad Kaapstad is offline
OC3D Elite
 
Join Date: Jul 2013
Location: Skaro visiting family
Posts: 1,985
All rads set to exhaust hot air out of the case.

For a 7900X and 2080 you don't need all 3 rads.
__________________
OC3D Overclockers Club Member
#041

GTX 960 owner and proud of it.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump










All times are GMT. The time now is 02:06 PM.
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.