VRAM doesn't downclock with 2 high refresh rate monitors

[Knight47]

Same issue on 551.86, ram was downclocking on 2x 1080p 60HZ + 1080p 75Hz. I upgraded to 3x 1440p 180Hz and vram clock is stuck at max clock. Gpu ran at 34°C with 30% fan speed and now it's 42°C.

Changed refesh rate to 120Hz on all 3 monitors, but it's still stuck at 1750MHz(2070 Super)

 

[mahanddeem]

Same issue on 551.86, ram was downclocking on 2x 1080p 60HZ + 1080p 75Hz. I upgraded to 3x 1440p 180Hz and vram clock is stuck at max clock. Gpu ran at 34°C with 30% fan speed and now it's 42°C.

Changed refesh rate to 120Hz on all 3 monitors, but it's still stuck at 1750MHz(2070 Super)

Something definitely bugged about the vram clocks on idle. Especially with multi monitor setups.
And yes, max vram clocks = higher power consumption and higher core and vram idle temps.

 

[Knight47]

Something definitely bugged about the vram clocks on idle. Especially with multi monitor setups.
And yes, max vram clocks = higher power consumption and higher core and vram idle temps.

Zero rpm mode is pretty useless if vram is at max clock, since fans will constantly spin up a down, that's how much it heats up the whole gpu.

 

[xtreemchaos]

i had this problem too, i solved it sort of by running my 1440 UW at 60hz "i know its low from 120hz but i said sorta" and then my second monitor at 144hz and my gpu "2080" started down clocking as it should, i think it due to my 2nd monitor being gsyinc and my main being not.

 

[Knight47]

i had this problem too, i solved it sort of by running my 1440 UW at 60hz "i know its low from 120hz but i said sorta" and then my second monitor at 144hz and my gpu "2080" started down clocking as it should, i think it due to my 2nd monitor being gsyinc and my main being not.

All 3 monitors for me are G-sync compatible(since they are the same model), so that can't be the reason. If you play a youtube video or visit a website with gifs on the 60Hz monitor while playing on the 144Hz, game will feel like playing in 20fps.

 

[Wumyg]

Thanks man!
You have a command to adjust fan speed by command (no tool or applications)?

Not aware of a way to do that sorry.

how can i undo this command? i think it's causing issues in games for me.

i know i shouldn't have tried this command because i have a single 60hz monitor, but there you have it
i did that just as an experiment because my gpu shows 35w idle power consumption whereas the guy i bought from shows proper idle temps, there is possibility of display issue with this one from what i could gather.

I believe it resets on reboot but if not change the numbers in the command which is watts. Gaming at approx 41watts is not exactly ideal.

 

[xtreemchaos]

will feel like playing in 20fps.

my g-sync is turned off bud but what worked for me isn't universal its just a bit of info what may help with a idea of how to fix.

 

[Chrispy_]

The simple answer is total bandwidth.

• Your monitors each use bandwidth based on their resolution, total bit-depth per pixel, and refresh rate.
• Your GPU has various levels of bandwidth depending on your GPU's VRAM bus width and GDDR chip configuration, current VRAM clocks, vBIOS, and driver.
• The VRAM clocks in various states are clearly tweaked/broken by Nvidia occasionally. If Nvidia never fettled with this stuff, people wouldn't say it changes from driver version to driver version, but they do - ergo Nvidia fettles with this stuff (or just breaks it occasionally by accident).

So, we can probably just /end thread if y'all do the following.

1. Reduce refresh rates until you hit idle clocks.
2. Reduce number of active monitors if you've dropped to unacceptable refresh rates for your taste.
3. If you've dropped down to one monitor at 60Hz and your VRAM still isn't at idle, you've got some kind of OS/driver issue. Repair windows with DISM and/or repair drivers by reinstalling after a full DDU scour.

Whatever the result is, it's unchangeable. It is what it is and it's expected, well-documented behaviour. If you want peak refresh rate and it's too much for idle clocks you either need to pay for it with power consumption, or reduce refresh rates (with a script, with a utility, or manually) to save power. You cannot have both, these are two different sides of the same coin!

 

[Knight47]

The simple answer is total bandwidth.

So, we can probably just /end thread if y'all do the following.

1. Reduce refresh rates until you hit idle clocks.
2. Reduce number of active monitors if you've dropped to unacceptable refresh rates for your taste.
3. If you've dropped down to one monitor at 60Hz and your VRAM still isn't at idle, you've got some kind of OS/driver issue. Repair windows with DISM and/or repair drivers by reinstalling after a full DDU scour.

2070S has 448.0 GB/s bandwidth, 4070TiS 672.3 GB/s, 50% more and still not enough for 120Hz.

1. I didn't upgrade from 60Hz to downgrade to 60Hz.

2. I didn't buy 3 monitors to just use 2. I could have saved a ton of money by just getting 2 instead.

3. Happens in another machine, both with 2070S and 4070TiS. Didn't test anything below 120Hz, cuz that's unacceptable, since 100Hz monitors cost a lot less than 180/200Hz.

 

[avidgamer121]

I believe it resets on reboot but if not change the numbers in the command which is watts. Gaming at approx 41watts is not exactly ideal.

i ended up ddu'ing the drivers but it was actually an issue with the game itself which fixed after reinstall
i think it was also causing stuttering in games due to low wattage

 

[Calenhad]

2070S has 448.0 GB/s bandwidth, 4070TiS 672.3 GB/s, 50% more and still not enough for 120Hz.

1. I didn't upgrade from 60Hz to downgrade to 60Hz.

2. I didn't buy 3 monitors to just use 2. I could have saved a ton of money by just getting 2 instead.

3. Happens in another machine, both with 2070S and 4070TiS. Didn't test anything below 120Hz, cuz that's unacceptable, since 100Hz monitors cost a lot less than 180/200Hz.

No matter what you did or didn't. You can EITHER have multi-monitor with high refresh rate OR idle ram clocks. Pick one! This is not a Winnie the Pooh situation where you can have both.

 

[Todestrieb]

High resolution high refresh means high idle power. More like a limitation than a bug.
Driver can optimize to some extent, but there's no miracle for now.

You either have to accept low refresh rate or high idle/light usage power.

 

[Chrispy_]

2070S has 448.0 GB/s bandwidth, 4070TiS 672.3 GB/s, 50% more and still not enough for 120Hz.

1. I didn't upgrade from 60Hz to downgrade to 60Hz.

2. I didn't buy 3 monitors to just use 2. I could have saved a ton of money by just getting 2 instead.

3. Happens in another machine, both with 2070S and 4070TiS. Didn't test anything below 120Hz, cuz that's unacceptable, since 100Hz monitors cost a lot less than 180/200Hz.

I feel like this thread is stuck in a repeating loop because you keep ignoring what people are saying.

Here, let me bold it for you for the fourth time.

If you want peak refresh rate and it's too much for idle clocks you either need to pay for it with power consumption, or reduce refresh rates (with a script, with a utility, or manually) to save power.

What you're effectively saying is "I'm driving my sports car at 200mph, but I can't seem to get great fuel economy any more".
No shit, Sherlock!

 

[bug]

What you're effectively saying is "I'm driving my sports car at 200mph, but I can't seem to get great fuel economy any more".
No shit, Sherlock!

Tbh, he's saying "I used to get great mileage, but not anymore". It is what it is, this stuff is flaky. Enjoy it if it happens to work for you, ignore it otherwise.

 

[mahanddeem]

2070S has 448.0 GB/s bandwidth, 4070TiS 672.3 GB/s, 50% more and still not enough for 120Hz.

1. I didn't upgrade from 60Hz to downgrade to 60Hz.

2. I didn't buy 3 monitors to just use 2. I could have saved a ton of money by just getting 2 instead.

3. Happens in another machine, both with 2070S and 4070TiS. Didn't test anything below 120Hz, cuz that's unacceptable, since 100Hz monitors cost a lot less than 180/200Hz.

Hi, you joined my club lol
OP here, yes regardless of bandwidth, resolution, refresh, having nothing needing that much of max vram clock should be fixed by Nvidia (through drivers, VBIOS, etc...).
I agree with you, I'd much rather live with this, than drop refresh rate and/or resolution. I am currently just disabling one of the 2 monitors if I do not need it and also have a custom fan curve for the added heat/power from max vram clocks.
Saying bandwidth, data to be processed by GPU, etc. is not convincing, because sitting on desktop with no data shown at 30fps (check present mon statistic) doesn't need vram at full throttle.

 

[AusWolf]

Hi, you joined my club lol
OP here, yes regardless of bandwidth, resolution, refresh, having nothing needing that much of max vram clock should be fixed by Nvidia (through drivers, VBIOS, etc...).
I agree with you, I'd much rather live with this, than drop refresh rate and/or resolution. I am currently just disabling one of the 2 monitors if I do not need it and also have a custom fan curve for the added heat/power from max vram clocks.
Saying bandwidth, data to be processed by GPU, etc. is not convincing, because sitting on desktop with no data shown at 30fps (check present mon statistic) doesn't need vram at full throttle.

Multiple high-refresh monitors need lots of bandwidth for all the frames to be put on screen. The GPU works with frame buffer data out of the VRAM. There is nothing for Nvidia to fix here. You chose an exotic setup, it's not Nvidia's fault.

 

[eidairaman1]

Reach out to card maker and nv

 

[Redwoodz]

Wait, maybe I am forgetting something but since when do you want mem speed to change? Core speed is what idles, mem should stay constant?

 

[AusWolf]

Wait, maybe I am forgetting something but since when do you want mem speed to change? Core speed is what idles, mem should stay constant?

VRAM has been idling for at least the last 10-15 years. Check your card, you'll see around 100 MHz on Nvidia, and a fluctuation between 0 and 100 MHz on AMD, unless you're rocking multiple high refresh screens like OP does.

 

[mahanddeem]

VRAM has been idling for at least the last 10-15 years. Check your card, you'll see around 100 MHz on Nvidia, and a fluctuation between 0 and 100 MHz on AMD, unless you're rocking multiple high refresh screens like OP does.

I don't know why you're so much offended by the thread. From your responses, you try to make it a extremely uncommon (in this supposedly enthusiast PC community) to have high refresh monitors. Or it's a sin to do so.
And it's not multiple, it's 2 monitors.

 

[Caring1]

I don't know why you're so much offended by the thread. From your responses, you try to make it a extremely uncommon (in this supposedly enthusiast PC community) to have high refresh monitors. Or it's a sin to do so.
And it's not multiple, it's 2 monitors.

Two IS multiple, just saying.

 

[mahanddeem]

Two IS multiple, just saying.

 

[AusWolf]

I don't know why you're so much offended by the thread. From your responses, you try to make it a extremely uncommon (in this supposedly enthusiast PC community) to have high refresh monitors. Or it's a sin to do so.
And it's not multiple, it's 2 monitors.

1. I'm not offended (there isn't anything here to offend me).
2. How common or uncommon it is to have multiple high refresh monitors has nothing to do with what's been said.
3. It's not a sin to have a monitor configuration of your preference. You can do whatever floats your boat. However, you need to understand that pushing out so many pixels a second even on a static 2D image requires bandwidth greater than you graphics card can do with idle VRAM clocks. I can spend all my life believing that the sky is yellow and grass is red, but it won't make it any more true.

Exactly. Two involves several parts (two to be exact).

 

[bug]

Wait, maybe I am forgetting something but since when do you want mem speed to change? Core speed is what idles, mem should stay constant?

This used to be really simple: desktop was 2D, running at basically idle, when a 3D app would start, the GPU would start breaking a sweat. Then someone figured you can't draw a desktop without 3D and everything went downhill.

 

[ty_ger]

Two is a multiple of one.