Asus GX531GW-AB76 - i7-9750H-RTX 2070 max Q - undervolting

[zues13]

Hi
So I have a asus GX531GW-AB76 - i7-9750H- RTX 2070 max Q
I tried to undervolt it by ThrottleStop 9.5 and i have a questions.
Is this the best result of Cinebench i could get or can I get better results and temperature of the processor ? My room is 78○ degrees Fahrenheit and no fan cooling under the laptop with kryonaut paste.
Below i upload settings of throttleStop and my result of cinebench. And log files from playing fallout 76 for about 30 mins.
Thanks for answer.
Best regards

 

[PHVM_BR]

The i7-9750H running at its maximum multicore clocks (4.0GHz) in Cinebench R23 should get a score around 8100 (without changing Windows priority).

You should lower your cache voltage because this CPU accepts much higher undervolt values.
My cache on the same CPU can go up to -135mV.

I suggest starting with -100mV cache. Test the stability with TS Bench and if no error appears run Cinebench and compare the clock/temperature/power with your current result.
Then follow with steps of -10mV in the cache, testing the stability in TS Bench and verifying the data in Cinebench.
When the TS Bench shows an error, increase 5mV and test again.

My i7-9750H works best with -130mV cache and -230mV and is totally stable.

Also, in the TPL window set the values of PL1 and PL2 to 70W. With the sub voltage well adjusted it will be more than enough for this i7 to deliver all its multicore performance.
Check the box in front of MMIO so that the system doesn't change your limits.

Use a simple stand or something else to move the air intakes away from the table top. This helps a lot with thermal headroom.

This thread I posted may help you:

i7-9750H: undervolt x power ratio

I have a Precision 7540 for more than 3 years and with undervolt it always delivered easily the maximum multicore performance of the i7. At the beginning of the year I changed its thermal paste for the Honeywell PTM 7950 phase change pad and decided to test its maximum cooling capacity and took...

www.techpowerup.com

 

[unclewebb]

Cinebench R23 should get a score around 8100

Some Asus laptops will enforce the 45W TDP limit when fully loaded running Cinebench. It might not be possible to maintain 4000 MHz and get over 8000 in R23 if the CPU is being forced to power limit throttle to 45W. It is always a good idea to check the MMIO Lock box in the TPL window.

The Nvidia GPU is spending a lot of time right at 86°C. There is likely an 86°C or 87°C thermal limit being enforced on the GPU. Try to improve cooling or perhaps undervolt the Nvidia GPU if possible. Even a couple of degrees cooler will help the GPU maintain full speed without it needing to throttle.

I agree with @PHVM_BR that Honeywell PTM 7950 would be a good idea to try.

I have seen some 9750H stable with the cache at -125 mV or slightly more but not all 9750H are stable at this level. The cache is the important voltage to adjust. Start by reducing the core offset. This might allow you to push the cache offset much further than -50 mV.

For gaming your CPU looks good. It has no problem maintaining the full 4000 MHz. Most games will not run a locked 9750H any faster than that.

 

[PHVM_BR]

Some Asus laptops will enforce the 45W TDP limit when fully loaded running Cinebench.

From the images I believe that the MMIO limit is 60W.

I have seen some 9750H stable with the cache at -125 mV or slightly more but not all 9750H are stable at this level.

I already had contact with some i7-9750H and the worst of them accepted -110mV in cache.

The Nvidia GPU is spending a lot of time right at 86°C. There is likely an 86°C or 87°C thermal limit being enforced on the GPU. Try to improve cooling or perhaps undervolt the Nvidia GPU if possible. Even a couple of degrees cooler will help the GPU maintain full speed without it needing to throttle.

I hadn't even looked at the game log, I concentrated on Cinebench.
My bad...

With the CPU only consuming ~25W the GPU accelerates to 86/87ºC.
I believe that with a better adjustment on the CPU, with undervolt on the GPU and moving the air intake away from the table top he will be able to move away from the thermal throttle on the 2070.

In the first image it shows that his thermal paste was well applied, with a small difference between the temperatures of the cores.
The question is: how long will it last?

 

[unclewebb]

I believe that the MMIO limit is 60W

That is true but the EC PL1 power limit is probably set to 45W. That is usually the problem with Asus laptops.

i7-9750H and the worst of them accepted -110mV in cache

-110 mV cache offset sounds about right for some 9750H. I agree with your recommendation to start testing with the cache at -100 mV. Setting the core and cache equally at first when testing is not such a bad idea. This way a person can find out what the cache is capable of without a high core offset causing any stability issues.

A person can start bumping up only the core offset after that in -25 mV steps. If you lose stability before reaching -175 mV on the core, I would add 5 mV to the cache and continue testing. This method seems to give good overall results.