Looking for 3090 undervolters!

[BetteBalterZen]

30 minutes ago, tinsukE said:

Believe it or not, today I got my hands on a 3090 FTW3 Ultra and I gotta say I'm disappointed.

 

I expected the card to be power hungry at stock, and it was, by sucking up to 400W to achieve 1900MHz on Heaven.

 

I rolled up the sleeves and got down to tweaking, it seems pretty stable at 1800MHz with 800mV. But the temperature is just comparable with my TUF OC (up to 75C), consuming around the same amount of power as the TUF (up to 320W), but much noisier at stock fan speeds. Tweaking the curve a bit brings it to 82-83C at a slower fan curve that I find comparable noise wise to the TUF's stock one.

 

It seems that the power hungry design does make it run hotter. Some also say that the cooler also keeps the VRAM cooler (which causes the GPU to run a tad hotter), but I see the same overall 94C for the VRAM too.

 

I shouldn't have opened its box. I was happy with the TUF and didn't know it. I guess I'll re-sell it with a smaller profit than it could net me sealed.

Wauw, yeah, that doesn't sound good at all with the FTW3...

My ROG STRIX 3090 peaks 67c at 1815MHz@850mV after many hours of game-time with a watt usage around 330-340 watts, with fans peaking at 2200RPM(stock fan curve). At 2200RPM I can hear my 3090 but it really isn't loud at all. I don't know the exact dB though since I have no way of measuring it.

 

Oh and also; the maximum VRAM temp I've seen from HWiNFO is 96c, so I guess your FTW3 cools the VRAM a tad better? 

I haven't actually played around with my card when it comes to overclocking. I've only really "undervolted" my card. 
Maybe I should try to tomorrow and see how far my card will go on auto, with the powerlimit set to max - kinda curious what the temps will be, and were the clockspeed will settle. 

Yeah I'll try and play around with that tomorrow. I will report back with results.

Oh and btw; can't you just send the FTW3 back and get a refund? 

[kaiwenwu]

I will test it later when I put hdd water block on backplate.

[kaiwenwu]

2 hours ago, BetteBalterZen said:

Aha, so you haven't tested 2000MHz at 0.7mV in games or stress tests? 

Also my 3090 is on water and is around 30c at 0.7v, if you are on air is not going to hit it.

[BetteBalterZen]

42 minutes ago, kaiwenwu said:

Also my 3090 is on water and is around 30c at 0.7v, if you are on air is not going to hit it.

Well, my card is around 35c at idle too, so it's kinda close. But at idle, the volt is as low as 0.7mV, like your undervolt.  
You may be able to hit 2000MHz using only 0.7mV while mining. I have no clue how mining affects graphics cards. 
But 99.9% sure you won't be gaming or doing stresstest @2000MHz with only 0.7mV on the core. That just seems unrealistic but I'd love to be wrong haha. 

[kaiwenwu]

51 minutes ago, BetteBalterZen said:

Well, my card is around 35c at idle too, so it's kinda close. But at idle, the volt is as low as 0.7mV, like your undervolt.  
You may be able to hit 2000MHz using only 0.7mV while mining. I have no clue how mining affects graphics cards. 
But 99.9% sure you won't be gaming or doing stresstest @2000MHz with only 0.7mV on the core. That just seems unrealistic but I'd love to be wrong haha. 

 

[kaiwenwu]

52 minutes ago, BetteBalterZen said:

Well, my card is around 35c at idle too, so it's kinda close. But at idle, the volt is as low as 0.7mV, like your undervolt.  
You may be able to hit 2000MHz using only 0.7mV while mining. I have no clue how mining affects graphics cards. 
But 99.9% sure you won't be gaming or doing stresstest @2000MHz with only 0.7mV on the core. That just seems unrealistic but I'd love to be wrong haha. 

It is stable. I use evc2 to lock vcore at 0.7v.

[kaiwenwu]

2 minutes ago, kaiwenwu said:

It is stable. I use evc2 to lock vcore at 0.7v.

My room is 28c right now so the temp is higher.

[BetteBalterZen]

7 hours ago, kaiwenwu said:

 

This seems to good to be true... I really have a hard time believing that. Just what

Am I reading correctly that your card only uses around 50 watts?

Well, 50 watts does kinda makes sense with only 0.7mV...
Do you get the same readings from fx HWiNFO? 

If you really are able to run 2000MHz at only 0.7mV in heavy 3D workloads, while also using only 50 watts,

then you have the most insane god-tier golden sample silicon chip I have ever seen. 

I'm kinda blown away...

Edit:
I've just seen in your screenshot, in the top left corner, it says total board power on 243 watts but also with a voltage of 1.081? 
Are you sure it is locked at only 0.7mV? Also, it says "mem: 1218 MHz" - is the memory downclocked a lot?

Sorry that it seems like I want to try and find the "Why it isn't true". Again. I seriously hope it's true. Because then your card is freaking amazing man. 

[BetteBalterZen]

10 hours ago, tinsukE said:

I expected the card to be power hungry at stock, and it was, by sucking up to 400W to achieve 1900MHz on Heaven.

Hello again.

 

So I just tried running Heaven with everything on Auto with the power limit cranked to the max. 
It seems your FTW3 holds a higher clockspeed out of the box and with less power usage than my ROG STRIX

As you can see in my screenshot, my card settled at 1875MHz @1.069V, with 460 Watt peaks:

 

[kaiwenwu]

52 minutes ago, BetteBalterZen said:

Hello again.

 

So I just tried running Heaven with everything on Auto with the power limit cranked to the max. 
It seems your FTW3 holds a higher clockspeed out of the box and with less power usage than my ROG STRIX

As you can see in my screenshot, my card settled at 1875MHz @1.069V, with 460 Watt peaks:

 

My card is draw 290w as you can see because I using kp 1000w bios. The 243w is only pcie and two 8pin, gpuz and furmark can't read the third 8pin. Kingpin bios force the card to run regardless the voltage. The cuve is different in kp bios.

[kaiwenwu]

The elmor evc2 is what I use to control the onboard voltage controller directly. I set to 0.7v then card will run at 0.7v regardless any software. 

[BetteBalterZen]

31 minutes ago, kaiwenwu said:

My card is draw 290w as you can see because I using kp 1000w bios. The 243w is only pcie and two 8pin, gpuz and furmark can't read the third 8pin. Kingpin bios force the card to run regardless the voltage. The cuve is different in kp bios.

Oh shit alright. But wauw. Still though. You're damn lucky IMO. 2000MHz on 0.7mV is insane man. Your chip is crazy stable. Happy for you!!

[tinsukE]

1 hour ago, BetteBalterZen said:

Hello again.

 

So I just tried running Heaven with everything on Auto with the power limit cranked to the max. 
It seems your FTW3 holds a higher clockspeed out of the box and with less power usage than my ROG STRIX

As you can see in my screenshot, my card settled at 1875MHz @1.069V, with 460 Watt peaks:

 

Okay, it seems you have a higher tolerance for fan noise than me (yeah, I know, that is very subjective, depends on personal preferences, case, case location, etc).

 

But I went ahead and tested my undervolt, 1800MHz with 800MV, on Heaven (I'll probably have to move the voltage up a notch or two still for full stability) with different fan speeds:

 

Fan speed at 80% (~2150 RPM):

- 68C GPU

- 86C VRAM Junction

- Way too loud for me (on a Meshify C just besides my monitor)

 

Fan speed at 70% (~1700 RPM):

- 74C GPU

- 90C VRAM Junction

- Acceptable loud, but I'd rather have it quieter

 

Fan Speed at 65% (1500 RPM):

- 78C GPU

- 92-94C VRAM Junction

- Just loud enough to be barely perceptible over my case fans

 

So at a higher RPM, the GPU is a bit hotter than your Strix, but the RAM is considerably cooler (real gaming could push things higher, specially if I need to bump the voltage for stability).

 

After the initial disappointment, it seems that the FTW3, at this lower noise levels, is just as fine as the TUF, but it has better RAM cooling and more room to stretch its legs if I would care less about fan noise or ever put it under a water block.

 

I guess I'll stick with a fan curve that goes up to 1700 RPM for 80C.

[BetteBalterZen]

3 minutes ago, tinsukE said:

I guess I'll stick with a fan curve that goes up to 1700 RPM for 80C.

 

 

1800MHz at 800mV is a good undervolt IMO! If my GPU was able to do that, I would use that setting. Unfortunately my GPU just isn't stable at 800mV near the 1800MHz core clocks, especially not when RT cores are used at the same time.

[kaiwenwu]

1 hour ago, BetteBalterZen said:

Oh shit alright. But wauw. Still though. You're damn lucky IMO. 2000MHz on 0.7mV is insane man. Your chip is crazy stable. Happy for you!!

My chip is just normal, I think most 3090 can do it. You just need to flash the bios. I can only hit 2190 at 1.17v in game I see other chip can do 2225 at stock voltage. 

[BetteBalterZen]

1 hour ago, kaiwenwu said:

My chip is just normal, I think most 3090 can do it. You just need to flash the bios. I can only hit 2190 at 1.17v in game I see other chip can do 2225 at stock voltage. 

Oh, wauw, okay

 

I thought I knew what was normal. I guess not. But isnt the Kingpin vBIOS like hidden from the public? And would it even work on a ROG STRIX? Sounds a bit scary loading a BIOS onto my card made for another card entirely

[kaiwenwu]

15 minutes ago, BetteBalterZen said:

Oh, wauw, okay

 

I thought I knew what was normal. I guess not. But isnt the Kingpin vBIOS like hidden from the public? And would it even work on a ROG STRIX? Sounds a bit scary loading a BIOS onto my card made for another card entirely

It is on tpu, and it works fine on strix only problem is that one hdmi port is not working. Bios is setting curve and power limits. 

[kaiwenwu]

1 minute ago, kaiwenwu said:

It is on tpu, and it works fine on strix only problem is that one hdmi port is not working. Bios is setting curve and power limits. 

Nothing is spical, you can use any vbios that you want to use it does not matter. 

[BetteBalterZen]

1 hour ago, kaiwenwu said:

It is on tpu, and it works fine on strix only problem is that one hdmi port is not working. Bios is setting curve and power limits. 

 

Nothing is spical, you can use any vbios that you want to use it does not matter. 

 

Alright so the reason why 1 HDMI port won't work is because the Kingpin card doesn't have this HDMI port? 

And since you say nothing is special, is that because it all comes down to the GPU itself that is used on the card? 
Isn't there a risk with VRM not running correctly because the VRMs may be built differently on each card? 

My ROG STRIX does have two BIOS's, so I can mess one up, without any trouble at all, but it still sounds really scary haha. 

But okay, this is totally new for me. I didn't think this was possible. It's very interesting indeed...

[Asryan]

Hi

I have a Strix 3090 and it  is just running on +100 on core and thus clocking in game aroud 2100Mhz

My temps are usually around 65 to 70 on core, around 82 to 90 on memory  depending on game. 

I was interested in undervolting but if I do so would I lose a lot of FPS?  

Could I keep the same clocks and undervolt? but I don't really know how to do so and i'd love some help.

Thanks !

[dream3]

hey guys, what are good Pure RT and superposition settings to test undervolts? I got a tuf 3090 over here.

[BetteBalterZen]

46 minutes ago, dream3 said:

hey guys, what are good Pure RT and superposition settings to test undervolts? I got a tuf 3090 over here.

The heaviest settings possible

Also, just for info: my 3090 was perfectly stable at 1800MHz@850mV but after started playing games with Ray Tracing like Metro Exodus Enhanced Edition and Control I learned that my 3090 wasn't stable at all. Games crashes after a couple of minutes. But 1800MHz@875mV is stable. 
So yeah, 25mV was needed to be stable in Ray Tracing games compared to games to with no Ray Tracing. 

[mk1980]

On 6/3/2021 at 3:40 PM, BetteBalterZen said:

The heaviest settings possible

Also, just for info: my 3090 was perfectly stable at 1800MHz@850mV but after started playing games with Ray Tracing like Metro Exodus Enhanced Edition and Control I learned that my 3090 wasn't stable at all. Games crashes after a couple of minutes. But 1800MHz@875mV is stable. 
So yeah, 25mV was needed to be stable in Ray Tracing games compared to games to with no Ray Tracing. 

Hi I have rtx 3090 Msi Suprim X, bought in April 2021. Anyhow mine card in Metro Exodus Enhanced is stable at:

1710mhz-  0,775v

1755mhz - 0.806v

1770mhz - 0,818v

1785mhz-  0.831v

1800mhz-  0,843v

1815mhz-  0.856v

1830mhz-  0.868v

 

Normal non RT games, Time Spy & Cyberpunk, Control are stable 30-45mhz higher then Metro Exodus stable clocks & undervolt. So I kept 1755mhz 0.8v with 1050mhz x2 overclocked memory to 21.6ghz . And Time spy score is 19450 vs stock 19900 . Mine PC case is hot box Nzxt h510 without mesh; at least 10deg.celzius up due to closed front panel, so yeah 0.8v is way to go. Low rpm and temps with vsync off in heavy games Metro Exodus, Witcher 3 up to 75 degrees - after 1hour of gaming, room temp. 24deg. on 4k 60hz monitor with vsync on I get lower gpu utilization and temps go in heavy games up to 70 deg or 65deg. max many times up to 60, not using full gpu power anyhow happy finally. It is close to average undervolt result . Best cards can do on 0.8v 1845mhz stable undervolt, but nobody should expect this to achieve when changing cards rtx3090s .  I saw many people to change rtx 3090s 4x but gained silicon lottery on same volts 30-45mhz yeah not good. Normal most people settle 0.8v on 1800mhz 1815mhz metro exodus stable. What I saw better undervolt results had the guys from end 2020 and batches from March and later were cards with lower silicon quality in most cases, just luck I know. Youtuber Frame Chasers reminded he saw 200mhz max overclock difference on rtx3090 cards. Honestly worst and best card are close to 300mhz difference overclock easily, rtx3090 has high silicon quality fluctuations. Anyhow great cards for hot box PC CASES I recommend 0.8v really even with lost mhz no prob. For PC cases with good cooling performance it's not that big deal

[mk1980]

On 6/3/2021 at 3:40 PM, BetteBalterZen said:

The heaviest settings possible

Also, just for info: my 3090 was perfectly stable at 1800MHz@850mV but after started playing games with Ray Tracing like Metro Exodus Enhanced Edition and Control I learned that my 3090 wasn't stable at all. Games crashes after a couple of minutes. But 1800MHz@875mV is stable. 
So yeah, 25mV was needed to be stable in Ray Tracing games compared to games to with no Ray Tracing. 

just question did you please checked actual mhz in games ? using Nvidia advanced info statistics or other software ? :) I did confirmed actual clockrates , not mhz setuped in MSI afterburner. Because if you have in afterburner 1800mhz on 0,875v you can be boosting in game to 1830mhz in RTX game like Metro exodus, which make a lot of difference to perspective of undervolt result :) just curios to be sure :) mine 1755mhz on 0,8v is actually clocks shown in games, but in MSI afterburner I think I hve 1725 or 1740 adjusted :D but it`s doing 1755 in all tests and games , soo ;) yeah

[BetteBalterZen]

On 6/4/2021 at 8:03 PM, mk1980 said:

just question did you please checked actual mhz in games ? using Nvidia advanced info statistics or other software ? I did confirmed actual clockrates , not mhz setuped in MSI afterburner. Because if you have in afterburner 1800mhz on 0,875v you can be boosting in game to 1830mhz in RTX game like Metro exodus, which make a lot of difference to perspective of undervolt result just curios to be sure mine 1755mhz on 0,8v is actually clocks shown in games, but in MSI afterburner I think I hve 1725 or 1740 adjusted but it`s doing 1755 in all tests and games , soo yeah

True, sometimes my clockspeed hits 1815MHz for a short while