3090 GDDR 6 temps

richto · 9 Apr 2021 at 11:15

wunkley said:
What ‘type’ of undervolting were you trying though? There’s a few different ways of doing it but I’ve always used the curve method. This video here is a good quick guide to how I do it....

https://youtu.be/FqpfYTi43TE

Just using the curve editor on MSI afterburner.

richto · 9 Apr 2021 at 11:17

DD_Crash said:
Is the backplate on a 3090 a heatsink?

Yes, as you have RAM on the back on a 3090 (not on 3080)

wunkley · 9 Apr 2021 at 11:24

richto said:
Just using the curve editor on MSI afterburner.

I don’t know what to say then bud sorry. The last few cards I’ve had I’ve undervolted with good results all round.
Enjoy your mod though, as I said that’s some seriously impressive results. I might consider doing the same when the newness novelty of my card wears off and I try to forget how expensive it was! Did you find it easy to do?

richto · 9 Apr 2021 at 11:30

wunkley said:
I don’t know what to say then bud sorry. The last few cards I’ve had I’ve undervolted with good results all round.
Enjoy your mod though, as I said that’s some seriously impressive results. I might consider doing the same when the newness novelty of my card wears off! Did you find it easy to do?

Very easy. Took maybe 20 minutes. I had to use multiple layers of Gelid to make 2mm as I had packets of 0.5mm but it seems to congeal into one lump in this case. Just cut the sheets with scissors. Can recommend it.

(Also replaced GPU paste with Arctic MX-4 while I was at it as it was lower grade white stuff. Left all other pads than memory as OEM)

DD_Crash · 9 Apr 2021 at 12:25

richto said:
Yes, as you have RAM on the back on a 3090 (not on 3080)

Thanks for that. So it might be a good idea to buy a large heatsink and fix that onto the backplate?

richto · 9 Apr 2021 at 12:27

DD_Crash said:
Thanks for that. So it might be a good idea to buy a large heatsink and fix that onto the backplate?

Replace the thermal pads for 12W/mK or better and if not good enough then add airflow before trying bolt-ons imo.

DD_Crash · 9 Apr 2021 at 12:34

I thought that might invalidate the guarantee as I would have to physically remove the plate. I am sure that I wouldnt damage anything but on a £2000 bit of kit if the card broke after a couple of years and they said "swivel" I would not be a happy bunny.

pp111 · 9 Apr 2021 at 12:38

I must confess that being a bit of a cooling nut this has really put me off the idea of getting a 3080 or 3090.

richto · 9 Apr 2021 at 12:38

DD_Crash said:
I thought that might invalidate the guarantee as I would have to physically remove the plate. I am sure that I wouldnt damage anything but on a £2000 bit of kit if the card broke after a couple of years and they said "swivel" I would not be a happy bunny.

Possibly. There are no warranty seals though. See comments above on that.

richto · 9 Apr 2021 at 12:41

pp111 said:
I must confess that being a bit of a cooling nut this has really put me off the idea of getting a 3080 or 3090.

Easily fixed though. And not as large an issue on all cards. E.g. the Asus Rog Strix OC has mid range thermal pads, not cheap crappy marshmallows like the Gigabyte Xtreme has.

Blackjack Davy · 9 Apr 2021 at 13:10

Mine sits around 60c-70c but then I'm not mining which is presumbably what this thread is about.

richto · 9 Apr 2021 at 13:21

Blackjack Davy said:
Mine sits around 60c-70c but then I'm not mining which is presumbably what this thread is about.

Mining is the highest load on memory undoubtedly and if you own a 3080 or a 3090 you are missing out on circa $100 a week by not mining with it when not gaming. However memory throttling also can be a thing for gaming.

If you are at 70 C MEMORY temp under GPU-Z with what you do then you have little to gain.

pp111 · 9 Apr 2021 at 18:31

richto said:
Easily fixed though. And not as large an issue on all cards. E.g. the Asus Rog Strix OC has mid range thermal pads, not cheap crappy marshmallows like the Gigabyte Xtreme has.

I have been looking at the Asus, what temps does that run at?

richto · 9 Apr 2021 at 18:41

pp111 said:
I have been looking at the Asus, what temps does that run at?

An unmodified Asus Rog Strix 3080 OC with 100% fans and +1000 memory clock mining Eth gives

GPU Clock [MHz] 1560.0
Memory Clock [MHz] 1281.5
GPU Temperature [°C] 49.6
Hot Spot [°C] 62.2
Memory Temperature [°C] 86.0
GPU Load [%] 100
Memory Controller Load [%] 100
Video Engine Load [%] 0
Bus Interface Load [%] 2
Board Power Draw [W] 235.8
GPU Chip Power Draw [W] 49.9

wookiee87 · 9 Apr 2021 at 19:11

i have my fe 3090 under a custom bitspower waterblock and with a +1000 on my memory it runs upto 74 degrees under gaming load which sounds hot but looking through the tread that is sub zero, 110-120 is insane if you get upto that kind of heat

richto · 9 Apr 2021 at 19:49

wookiee87 said:
i have my fe 3090 under a custom bitspower waterblock and with a +1000 on my memory it runs upto 75.8 degrees under gaming load which sounds hot but looking through the tread that is sub zero, 110-120 is insane if you get upto that kind of heat

That is hot for water. Mine runs at +1000 mining at 70 degrees RAM (3080)

wookiee87 · 9 Apr 2021 at 21:15

richto said:
That is hot for water. Mine runs at +1000 mining at 70 degrees RAM (3080)

my fans barely spin under load hence why my card runs warm, if i alter them to spin above 2000 rpm then my temps drop like a stone but my pc is very loud, dont forget a 3090 has ram on both sides of the pcb vs the 3080 so the latter will run warmer regardless.

plus my core clock hovers around the 2055-2070mhz mark too which adds a tonne of extra heat into the mix

richto · 9 Apr 2021 at 21:19

wookiee87 said:
my fans barely spin under load hence why my card runs warm, if i alter them to spin above 2000 rpm then my temps drop like a stone but my pc is very loud, dont forget a 3090 has ram on both sides of the pcb vs the 3080 so the latter will run warmer regardless

Ah OK, I run my fans at 100% as I wear a headset when gaming and mine Eth when I'm not.

newuser · 9 Apr 2021 at 21:53

wookiee87 said:
my fans barely spin under load hence why my card runs warm, if i alter them to spin above 2000 rpm then my temps drop like a stone but my pc is very loud, dont forget a 3090 has ram on both sides of the pcb vs the 3080 so the latter will run warmer regardless.

plus my core clock hovers around the 2055-2070mhz mark too which adds a tonne of extra heat into the mix

Your temps are pretty impressive. My stock 3090 FE is running at 1950/1965 at 900. Hits mid 60s core and mid 90s ram while gaming with the case fans on a curve that tops out at 1200rpm. I'm fine with the temps and it's inaudible over the speakers even in menus. In light use all the fans are off and the highest temp in the PC is the vram which is in the 50s.

wookiee87 · 9 Apr 2021 at 22:37

newuser said:
Your temps are pretty impressive. My stock 3090 FE is running at 1950/1965 at 900. Hits mid 60s core and mid 90s ram while gaming with the case fans on a curve that tops out at 1200rpm. I'm fine with the temps and it's inaudible over the speakers even in menus. In light use all the fans are off and the highest temp in the PC is the vram which is in the 50s.

i didnt say i have a 5950x in the same loop too which puts even more heat in as i have a manual oc on the cpu of 4.6ghz @1.28v, my fans run at 800-900rpm at idle and when i'm in games they spin upto 1500rpm which can just about be heard but not to the point it becomes annoying, if i run benchmarks i go in to the software and ramp the fans to 3000rpm so i get the very best cooling but i have to leave the room as my pc sounds like a jet engine, it's truly awful, dont do that anymore really.
just enjoy my silent pc in games