Lowering vram temps on RTX 3090

[jallenlabs]

Ive had my 3090 for a while and am not ready to block it, so I thought I would see if I could get the vram temps down a bit. During sustained gameplay the vram runs at or near 100C and has hit 102C. I know this stuff runs hot, but with sufficient case airflow already, I bought some heatsinks. 4x 1.25 inch and 6x 1 inch aluminum variety from Amazon. Already had thermal pad on them. With the heatsinks in place temps went down to 98C, but quickly become heatsoaked, so I added a 80mm fan. That brought temps down to 90C during gameplay which is a good difference since the heatsinks were cheap and I already had the fan. I tried a 60mm (not enough cfm) and a 92mm thin fan, but so far the standard 80mm wins.

 

[leezhiran]

Have you tried replace thermal pads on vrams?

According to my attempt to cool down a 7900xtx,replacing stock thermal pad with a phase changing one will help a lot cooling vrams(i used honeywell 7950,you'll have to cut it into just size).

 

[jallenlabs]

I bought the 3090 used and supposedly the thermal pads and paste were changed. I guess well see when I order up a block for it at some point.

 

[mobiuus]

vram on my asus strix 3090 during heavy gaming goes to cca 75-80c power limit 100 (390w), only if i use full 123% power limit (480w)
it goes to cca 90c and from what i have read that is pretty much it, i mean good considering default air cooling
only watercooling helps and i have my eyes some time on aplhacool eisbear2 aio but damn they never have it on sale and 269eur for a 3 years old gpu seems to much for me.

If u consider changing thermal pads it will help but pay attention to thickness size coz if u mess that up, card could burn up

 

[Shrek]

VRMs tend to use much bigger transistors that a CPU or GPU and so are not so vulnerable to diffusion; so higher running temperatures are less of an issue.

 

[Vya Domus]

I don't think watercooling is going to fix this unless the backplate is actively cooled as well.

 

[freeagent]

More caseflow will help a ton. Not sure if that can be achieved with the case that is in use.

 

[Shrek]

I don't think watercooling is going to fix this unless the backplate is actively cooled as well.

Yes, water cooling can make things worse if the cooler only contacts the GPU and obstructs air flow.

 

[SCP-001]

I don't think watercooling is going to fix this unless the backplate is actively cooled as well.

Actually I believe a waterblock would help (as long as the radiator is big enough) as the backside VRAM chips are heat-soaked from the core and surrounding chips. Moving the heat away from the core faster helped to bring down the temperatures of the rear VRAM chips.

Here's a video from LTT demonstrating this.

Now I'm not saying the active backplate isn't a good idea, I'm just pointing out that a normal waterblock won't make things worse.

 

[jallenlabs]

Plenty of case airflow as I have a Phanteks Evolv X with 10 Noctua Redux fans at full speed. I can oveclock it as is with no real issue at this point, it just gets hot. Anybody have suggestions on waterblocks for this gpu?

 

[SCP-001]

Plenty of case airflow as I have a Phanteks Evolv X with 10 Noctua Redux fans at full speed. I can oveclock it as is with no real issue at this point, it just gets hot. Anybody have suggestions on waterblocks for this gpu?

EK has gone down the gutter for me cause of constant QC issues I've had with them. I'd recommend either Corsair's block if you have any other iCue components (It's not the best block but still looks good imo and gets the job done) or Alphacool. They have impressed me lately with their quality and customer service, and their blocks look great too.

 

[freeagent]

It looks like a pretty quiet setup.. generally high performance and silence do not go hand in hand.

 

[oxrufiioxo]

I have a Phanteks Evolv X as a secondary PC case fully populated with Silent wing 3 high speed and even at max speed cooling is pretty dismal compared to my 011 XL. On my 3080ti the temps are 5-8c worse comparatively. Likely ditching the case prior to having to stick my 4090 in it when that get's replaced in my primary pc.

 

[jallenlabs]

I have a Phanteks Evolv X as a secondary PC case fully populated with Silent wing 3 high speed and even at max speed cooling is pretty dismal compared to my 011 XL. On my 3080ti the temps are 5-8c worse comparatively. Likely ditching the case prior to having to stick my 4090 in it when that get's replaced in my primary pc.

I took the front off and modified the top. It has pretty good airflow then.

It looks like a pretty quiet setup.. generally high performance and silence do not go hand in hand.

Its super noisey. 1700rpm up against the rad is up there for noise. The pump on my SubZero kit is super loud too. Nothing compares to the coil whine coming from my power supply!

 

[freeagent]

I took the front off and modified the top. It has pretty good airflow then.

Its super noisey. 1700rpm up against the rad is up there for noise. The pump on my SubZero kit is super loud too. Nothing compares to the coil whine coming from my power supply!

I just meant airflow wise

Dam man.. that sucks

You should grab a Torrent and move to air

 

[mobiuus]

Asus ROG Strix 3090 (non-oc) AIO watercooled temperatures & 3DMark scores

This is a reference thread for those who need it with regards to temperatures / 3DMark scores: Specs / setup: Case: Cooler Master C700P Mobo: Asus Crosshair VIII Formula Mem: 128 GB Kingston KHX3200C16D4/32GX [/HR] CPU: AMD x5950 Cooling: Kraken NTZ Z73 AIO top-mounted: 3x120 mm fan...

rog-forum.asus.com

some dude posted his results using alphacool eisbear aio watercooling on asus rtx 3090

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:
CPU Die avg:
Asus Chipset:
GPU: 56.1c
Hot Spot: 66.2c
Memory Junction (VRAM): 66c
VRM: 48c

Stress / Load (OC) Peak Temperatures:
CPU Tdie: 74.5c
CPU Die avg: 75c
Asus Chipset: 66.3c
GPU: 66.2c
Hot Spot: 76.3c
Memory Junction (VRAM): 72c
VRM: 57c


i think these results are quite fine

 

[jallenlabs]

Asus ROG Strix 3090 (non-oc) AIO watercooled temperatures & 3DMark scores

This is a reference thread for those who need it with regards to temperatures / 3DMark scores: Specs / setup: Case: Cooler Master C700P Mobo: Asus Crosshair VIII Formula Mem: 128 GB Kingston KHX3200C16D4/32GX [/HR] CPU: AMD x5950 Cooling: Kraken NTZ Z73 AIO top-mounted: 3x120 mm fan...

rog-forum.asus.com

some dude posted his results using alphacool eisbear aio watercooling on asus rtx 3090

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:
CPU Die avg:
Asus Chipset:
GPU: 56.1c
Hot Spot: 66.2c
Memory Junction (VRAM): 66c
VRM: 48c

Stress / Load (OC) Peak Temperatures:
CPU Tdie: 74.5c
CPU Die avg: 75c
Asus Chipset: 66.3c
GPU: 66.2c
Hot Spot: 76.3c
Memory Junction (VRAM): 72c
VRM: 57c


i think these results are quite fine

I was looking at that model, Alphacool has a gpu kit for $267US.

Anybody out there remove the stock FE backplate and add heatsink directly to the chips? I assume the plastic isnt the greatest transfer to the heatsinks I have on it now...

 

[ARF]

Ive had my 3090 for a while and am not ready to block it, so I thought I would see if I could get the vram temps down a bit. During sustained gameplay the vram runs at or near 100C and has hit 102C. I know this stuff runs hot, but with sufficient case airflow already, I bought some heatsinks. 4x 1.25 inch and 6x 1 inch aluminum variety from Amazon. Already had thermal pad on them. With the heatsinks in place temps went down to 98C, but quickly become heatsoaked, so I added a 80mm fan. That brought temps down to 90C during gameplay which is a good difference since the heatsinks were cheap and I already had the fan. I tried a 60mm (not enough cfm) and a 92mm thin fan, but so far the standard 80mm wins.

Undervolt. Heavily this card.

 

[jallenlabs]

How much we talking for an undervolt? My focus in fps in CODMW2 atm. MOAR FRAMES!

 

[ARF]

How much we talking for an undervolt? My focus in fps in CODMW2 atm. MOAR FRAMES!

Yes, undervolting serves for getting more frames, as well.
The default settings are messed as usual, you need to find the proper ones yourself.

 

[jallenlabs]

https://forums.evga.com/3090-FTW3-Back-VRAM-quotBarebackquot-Mod-m3221639.aspx

Just found this.

Yes, undervolting serves for getting more frames, as well.
The default settings are messed as usual, you need to find the proper ones yourself.

Checking out undervolting vids now. Thanks for your suggestion.