Palit 3090 gaming pro 73c under water block 33c idle

[Jaqen]

Hey I’ve been water cooling with custom loops for 6 years so am used to seeing temps around 50c but I just finished building my new rig and have my 3090 and 3700x under water with 

 

1x 280mm EK se rad

1x 420mm EK se rad

d5 pump red combo 

no overclocking

 

my gpu temps are seriously high at 73c after just 20mins benchmark in tomb raider.

 

gpu is at full load

 

cpu is sitting at 50c

 

idle temps are fine... do I need to drain the loop and check thermal compound application? I’ve done this many times never got it wrong. 
 

the back of the gpu is roasting hot to the touch like so hot you couldn’t keep your hand on it for long which I have heard is normal due to the vram on the back but I have back plate installed. 
 

mare these temps in normal range for this power hungry card? Can’t imagine so. Any help or suggestions would be appreciated

[Jurrunio]

What did you use in the past? This is a 350w part which is the highest out of all single GPU gaming card from Nvidia, combined with higher heat density (due to process node shrinking over time) making it the most difficult single GPU to cool from Nvidia as well. No wonder it ran hotter than anything else from Nvidia.

 

21 minutes ago, Jaqen said:

but I have back plate installed. 

how flat is that backplate? I assume it's air cooled, flat stuff is bad for heat dissipation. You ideally want more bumps to increase its surface area.

[Jaqen]

2 minutes ago, Jurrunio said:

What did you use in the past? This is a 350w part which is the highest out of all single GPU gaming card from Nvidia, combined with higher heat density (due to process node shrinking over time) making it the most difficult single GPU to cool from Nvidia as well. No wonder it ran hotter than anything else from Nvidia.

 

how flat is that backplate? I assume it's air cooled, flat stuff is bad for heat dissipation. You ideally want more bumps to increase its surface area.

Fair enough, was expecting it to run hotter than I am used to but 73c is the same temps reported for the card under air...

[Jurrunio]

3 hours ago, Jaqen said:

Fair enough, was expecting it to run hotter than I am used to but 73c is the same temps reported for the card under air...

Same for air? High heat densities can reduce difference between air and liquid cooling (since it turns from heatsink/radiator surface area competition into heatpipe/liquid loop heat transfer rate, i.e. how much heat you can pull out of the die rather than deliver to the radiator), though I still expect a loop this big to pull ahead. Maybe the flow rate isnt high enough?

[Jaqen]

7 hours ago, Jurrunio said:

Same for air? High heat densities can reduce difference between air and liquid cooling (since it turns from heatsink/radiator surface area competition into heatpipe/liquid loop heat transfer rate, i.e. how much heat you can pull out of the die rather than deliver to the radiator), though I still expect a loop this big to pull ahead. Maybe the flow rate isnt high enough?

Yes at first I thought I just needed to speed up so set fans and pump to full speed but temps are still in the 70’s anywhere from 40% to 100% fan and pump speed. 
 

I ran fire strike extreme several times including a stress test. The card boosts up to 1800mhz but settles around 1770 after 30 mins. Temps level out at 72c. 
 

performance is better than average for my set up according to 3dmark so I don’t believe the card is under performing. 
 

I had to use EK’s slim rads in the build to fit everything but still it’s 5x 140mm so should be plenty and then some. 

 

if my idle temp is 27-33c then doesn’t that rule out thermal paste application as a contributor or should I drain the loop and double check?

[Jurrunio]

6 hours ago, Jaqen said:

temps are still in the 70’s anywhere from 40% to 100% fan and pump speed. 

So more speed but no extra cooling, sounds like the waterblock not getting as much heat as possible. Could be a mounting pressure issue if idle temps are fine, try tighten the screws. Otherwise the thermal paste application could be the root of the problem.

[Jaqen]

You know that makes a lot of sense I will do that, I have rung screws in the past with EK stuff so was being extra gentle this time around. Maybe a bit too gentle.. 

 

will report back in case you’re interested thanks for helping me out friend. 

[LogicalDrm]

-> Moved to Custom Loop and Exotic Cooling

[Jaqen]

19 hours ago, Jurrunio said:

So more speed but no extra cooling, sounds like the waterblock not getting as much heat as possible. Could be a mounting pressure issue if idle temps are fine, try tighten the screws. Otherwise the thermal paste application could be the root of the problem.

Just to let you know you were right on the money, one of the 4 screws behind the backplate was slightly loose. 
 

temps are now steady @52c under full load and boost behaviour is now much more consistent at 200mhz over factory max without any manual over clocking 

 

thank you very much!

[KrazeyKami]

Asus ROG Strix 3090 (non-oc variant) + AlphaCool Eiswolf 2 (modified backplate with my own active cooling, see https://forum.alphacool.com/threads/alphacool-eiswolf-2-for-3090-strix-wrong-size-of-padding.2809/ for details on my mod) / https://hardforum.com/threads/asus-rog-strix-3090-non-oc-version-aio-watercooled-temperatures-3dmark-scores.2017452/ for my rig.

GPU is overclocked: +175 Mhz GPU / +250 Mhz Memory / 137% TDP
 

Idle temperatures:
CPU Tdie: 44.5c
CPU Die avg: 35.7c
Asus Chipset: 58.5c
GPU: 25c
Hot Spot: 32c
Memory Junction (VRAM): 32c
VRM: 29c
 

Stresstest: 30 minutes Unigine SuperPosition @ High Textures / 3840x1600
 

Stress / Load (Non-OC) Peak Temperatures:
CPU Tdie: <not measured>
CPU Die avg: <not measured>
Asus Chipset: <not measured>
GPU: 56.1c
Hot Spot: 66.2c
Memory Junction (VRAM): 66c
VRM: 48c
 

Stress / Load (OC) Peak Temperatures:
CPU Tdie: 70.8c
CPU Die avg: 66.6c
Asus Chipset: 64.8c
GPU: 65.6c
Hot Spot: 76.3c
Memory Junction (VRAM): 72c
VRM: 53c
 

3DMark scores (OC):

TimeSpy: Overall: 19538 GFX: 21431 CPU: 13023 - https://www.3dmark.com/spy/26080542

TimeSpy Extreme: Overall: 10647 GFX: 11060 CPU: 8789 - https://www.3dmark.com/spy/26078840

Port Royal: GFX: 14949 - https://www.3dmark.com/pr/1430299

 

[DissapointedMan123]

Help!!!

Had the same initial problem with high vram temps, have changed to 1.5 and they're fine but now hotspot temp is mad (reached 104 when gpu temp was only 68 and vram was 90). I'm running a palit gaming pro 3090 with the eiswolf aio. Any help would be really appreciated

[fonzz1e]

 

Spoiler

 

coolant temp?

if coolant temp is passing 40c, maybe add more rads or use better static pressure fans