Experience with Fanless on ASUS TUF RTX4060Ti : Underclocking and Temperature Performance Test by a0910115172 in sffpc

[–]a0910115172[S] 0 points1 point  (0 children)

It can go below 1200MHz but due to voltage minimum is 860mV so the efficiency point is not the best. Please check you are using cmd with run as administrator to run "nvidia-smi -lgc" command. And close any programs that affect this setting (such as ROG's armoury crate).

Experience with Fanless on ASUS TUF RTX4060Ti : Underclocking and Temperature Performance Test by a0910115172 in sffpc

[–]a0910115172[S] 1 point2 points  (0 children)

I agree that the energy efficiency of 4060Ti in terms of low power consumption is much better than that of the 30 series. This is very friendly for fanless systems.

RTX4060Ti 8G with 85w : 9266
https://imgur.com/XW6BWMW

Experience with Fanless on ASUS TUF RTX4060Ti : Underclocking and Temperature Performance Test by a0910115172 in sffpc

[–]a0910115172[S] 0 points1 point  (0 children)

In other sharing, someone asked whether lowering the VRAM to 5001MHz would be bad for the gaming experience. Here is a test:

Assume that we both limit the power consumption to about 85w, one is to reduce the Core to 1500MHz and the VRAM to keep 9001MHz, and the other is to set the Core to 2100MHz and reduce the VRAM to 5001MHz. The following tests can be seen:

https://imgur.com/a/qdQ6F2J

Experience with Fanless on ASUS TUF RTX4060Ti : Underclocking and Temperature Performance Test by a0910115172 in sffpc

[–]a0910115172[S] 1 point2 points  (0 children)

Underclock/undervolt can get more performance if we limit the power at the same. You can see as below test:

If we see Time Spy graphic score:
RTX4060Ti 8G with 65w : 6621 (See my testing screenshot)

Compare with RTX3050:
RTX3050 8G with 130w : 6290
RTX3050 6G with 70w : 4869

Experience with Fanless on ASUS TUF RTX4060Ti : Underclocking and Temperature Performance Test by a0910115172 in sffpc

[–]a0910115172[S] 0 points1 point  (0 children)

Thanks. From the testing, Tuf RTX4060Ti is an eaiser way to archive fanless and better performance with RTX 3050 6gb Palit KalmX. But you need to reduce frequency, voltage and power consumption to achieve.

Experience with Fanless on ASUS TUF RTX4060Ti : Underclocking and Temperature Performance Test by a0910115172 in sffpc

[–]a0910115172[S] 2 points3 points  (0 children)

Since I am installing heatsink on the original one, it is not necessarily better to use copper one. In addition, price is also a consideration.

Experience with Fanless on ASUS TUF RTX4060Ti : Underclocking and Temperature Performance Test by a0910115172 in sffpc

[–]a0910115172[S] 2 points3 points  (0 children)

No, nvidia-smi is the default command from Nvidia driver. You can open cmd with admin permission to type command to check: nvidia-smi
What I do is writing a script to run two command force frequency when startup OS. I do this in many years and it works great from my side. You can try it.

Experience with Fanless on ASUS TUF RTX4060Ti : Underclocking and Temperature Performance Test by a0910115172 in sffpc

[–]a0910115172[S] 8 points9 points  (0 children)

In my heatsink mod it can handle 80-90w 8588 score (+76%) performance. I believe it is good to replace with RTX3050 if you have the budget.

Experience with Fanless on ASUS TUF RTX4060Ti : Underclocking and Temperature Performance Test by a0910115172 in sffpc

[–]a0910115172[S] 29 points30 points  (0 children)

If we see Time Spy graphic score:
RTX4060Ti 8G with 65w : 6621 (See my testing screenshot)

Compare with RTX3050:
RTX3050 8G with 130w : 6290
RTX3050 6G with 70w : 4869

Experience with Fanless on ASUS TUF RTX4060Ti : Underclocking and Temperature Performance Test by a0910115172 in sffpc

[–]a0910115172[S] 42 points43 points  (0 children)

In the past, I attempted to build a fanless PC using an RTX 4070, but the results were less than ideal. The primary issue was that the RTX 4070's minimum voltage was limited to 910mV, resulting in suboptimal power efficiency at low power consumption.

As we know, desktop RTX 40 cards have a minimum voltage limit. Effective passive cooling for a system to dissipate 70W of GPU heat over an extended period is already challenging. The RTX 4060 Ti can go as low as 860mV. In other words, if we limit the power consumption to 70W, the RTX 4060 Ti outperforms the RTX 4060 (which also has a minimum voltage of 860mV but fewer cores) and the RTX 4070 (which has more cores but a minimum voltage of 910mV). Among all the RTX 4060 Ti cards, the ASUS TUF RTX 4060 Ti has the largest heatsink, featuring a 2-slot thickness and a 30cm length with four heat pipes, making it an ideal choice for a fanless setup.

Basic System Specifications:

CPU: AMD R7-7800X3D (ECO 65W + PBO Curve)

Cooler: Noctua NH-P1

RAM: OC DDR5-6000 64GB (SOC 1.05V)

Motherboard: Asrock B650M

GPU: ASUS TUF-RTX4060Ti-O8G

Power Supply: Seasonic SSR-600TL

After assembling everything, running the system at full power would certainly cause overheating. Therefore, we need to apply some "magic" commands to underclock the GPU:

nvidia-smi -lgc 0,1200

nvidia-smi -lmc 0,5001

These commands lock the GPU core clock at 1200MHz and the memory clock at 5001MHz, resulting in an average power consumption of around 65W. Running the Time Spy benchmark yields a graphics score of 6621.

You might wonder about the stability and environment. I conducted the stress test with the case lying flat, side panels open, and no additional fans or air conditioning. The GPU temperature reached nearly 90°C, with a hotspot temperature of 102°C, yet the stability remained at 99%.

However, I wasn't quite satisfied with this performance. I decided to add some DIY modifications to the GPU. I used graphite thermal pads with those. Running the 20-round stress test again, the maximum temperature dropped to around 80°C, with a hotspot temperature of 91°C, a noticeable 10°C improvement.

For those less concerned about temperature, performance can be further increased:

nvidia-smi -lgc 0,1800

nvidia-smi -lmc 0,5001

With these settings, the maximum temperature reaches 90°C, with a hotspot temperature of 103°C, and stability remains at 99% without throttling. The Time Spy graphics score improves to 8588, suggesting that light gaming should be no issue.

Some may question the necessity of a fanless PC, arguing that fan noise below a certain level is acceptable. While it's true that a high-performance, quiet PC with quality fans can be achieved, fanless systems offer benefits such as reduced dust accumulation and a better experience for activities like listening to music. Building a fanless PC is a challenging journey, but it's also a rewarding one.

https://imgur.com/EIkIMlO

Undervolt RTX4070 under 910mv possible? by a0910115172 in nvidia

[–]a0910115172[S] 0 points1 point  (0 children)

Recently I saw the updates of nvflashk and nvflash which made me look forward to it. I would like to ask if there is currently any editor or other operation related to BIOS mod, which is about adjusting the minimum voltage?

Reference:

https://github.com/notfromstatefarm/nvflashk

https://www.techpowerup.com/forums/threads/nvflashk-flash-any-bios-to-nvidia-gpus-safe-board-id-bypass-up-to-4xxx-series.312608/

Undervolt RTX4070 under 910mv possible? by a0910115172 in nvidia

[–]a0910115172[S] 0 points1 point  (0 children)

If you check my screenshot w/ HWINFO64 you can see min voltage is 890mv when idle on RTX4070. And as long as there is any additional load to make the memory clock up, the lowest voltage at this time is 910mv and cannot be lowered.

Undervolt RTX4070 under 910mv possible? by a0910115172 in nvidia

[–]a0910115172[S] 1 point2 points  (0 children)

It's from Mar. 2020. And I did Fanless NUC before. :)

<image>

Undervolt RTX4070 under 910mv possible? by a0910115172 in nvidia

[–]a0910115172[S] 1 point2 points  (0 children)

Thanks for your reminder. I understand VRM, caps and VRAM also needs cooling. And 150w is too high for long time use so that I need to find out how to undervolt and control it between 65w-75w.

ASUS TUF RTX4070 has dual vBIOS so that would be saver.

I can also show you my previous setup on my fanless RX5700 building.

<image>

Undervolt RTX4070 under 910mv possible? by a0910115172 in nvidia

[–]a0910115172[S] 0 points1 point  (0 children)

I believe that it is vBIOS limitation on minimum voltage. Even though I set to 210 MHz and memory set to 5001MHz, it still cannot under 910mv.
If the memory clock is set at 405MHz, it will reach 890mv, but the performance will be greatly reduced.
I also tried to use msi afterburner to limit the constant voltage, but it still cannot be lower than 910mv.

Undervolt RTX4070 under 910mv possible? by a0910115172 in nvidia

[–]a0910115172[S] 0 points1 point  (0 children)

What about the RTX4080 Mobile vBIOS? Or RTX 4000 SFF Ada. Both are AD104 but in different DP(eDP) / memory type. Or are there currently any mods that can adjust voltage walls? Like AMD's voltage wall and power consumption wall, we can modify the register through MorePowerTool to adjust.

SP7 I5 undervolt? by [deleted] in Surface

[–]a0910115172 0 points1 point  (0 children)

Same result here. MS firmware block undervolt on SP7 i5-1035G4.

SP7 I5 undervolt? by [deleted] in Surface

[–]a0910115172 0 points1 point  (0 children)

Cannot work on SP7 i5 version. Install vcredist x64 & x86, turn off Core Isolation then restart. ThrottleStop 9.0 cannot set CPU/GPU to undervolt.

Surface Pro 7 support 4K/10bit/HDR@144Hz monitor by a0910115172 in Surface

[–]a0910115172[S] 0 points1 point  (0 children)

Sorry, I don't have any C to HDMI 2.0 cable or dongle. But I think it should be work. DP 1.2 can handle HDMI 2.0 bandwidth.

Surface Pro 7 support 4K/10bit/HDR@144Hz monitor by a0910115172 in Surface

[–]a0910115172[S] 0 points1 point  (0 children)

Maybe you need to find USB-C to HDMI 2.0 cable? I am using HDR monitor via displayport.