Need help limiting the Watts on ASUS X870E ProArt mobo

wade7575 · 2024-10-30T04:59:55+0000

I have never done this before and I would like to lower the total amount of Watts that the mobo can use while under full load.

I'm doing this because I want to Undervolt my CPU and I have also used Curve Optimizer,the problem is even going to 1.31 volts per core and also a -20 offset in Curve Optimizer and never seen any reduction with heat or power being used,I have also tried Eco Mode in the bios and it use's the same amount of Watts.

I remember watching a video where the guy said that you need to also limit the total Watts that the mobo can use but I can not find the video because he showed what you need to do.

Can someone please tell me where you go in the bios of an ASUS X870E ProArt to lower the total Watts the CPU can use.

Tetras · 2024-10-30T13:04:43+0000

Which CPU do you have?

What kind of load do you want to limit, or change?

You're right that you have to limit the power AND use the curve optimiser/undervolt, because otherwise it just gives the CPU a higher boost envelope.

For single thread load and short bursts, eco mode might not do anything.

The three power settings for AMD are PPT, TDC and EDC.

wade7575 · 2024-10-30T23:14:32+0000

@Tetras I have a 9900X 12 core,I never changed the max boost clock I left that stock.

I'm looking main to just limit the total Watts the CPU can get while under full load right now it's at 160 Watts from what Armoury Crate say's it is,I was told that if you limit the total Watt's that would help.

For whatever the reason even when I dropped the volts from 1.35 to 1.31 I didn't gain anything at all in the way of reducing heat,I seen a guy do it in Ryzen Master then copy his numbers into his bios and he was able to reduce the of his CPU by 10C.
He just kept taking away voltage from the cores and that's all he did,I was going to try doing the same thing with my CPU but Ryzen Master cause's it to crash but Cinebench and other stress testing programs don't.

What does PPT,TDC and EDC stand for.

Tetras · 2024-10-30T23:26:18+0000

wade7575 said:
What does PPT,TDC and EDC stand for.

PPT is the max power the CPU can suck from the socket, TDC and EDC set the max sustained and peak current.

From what I'm aware, eco mode sets those limits automatically.

You shouldn't need to do any tuning of the voltage or frequency if you use eco mode or change PPT, TDC and EDC manually, since they will do it for you to keep the CPU operating under those numbers.

wade7575 · 2024-10-31T03:46:42+0000

@Tetras That's the strange part I did try eco mode and it still sucked 168 Watts the very same amount it did when I just let the mobo and CPU run stock with the only setting I changed in stock was to EXPO and I left that on when I tried Undervolting and also used Curve Optimizer.

Tetras · 2024-10-31T13:37:13+0000

wade7575 said:
@Tetras That's the strange part I did try eco mode and it still sucked 168 Watts the very same amount it did when I just let the mobo and CPU run stock with the only setting I changed in stock was to EXPO and I left that on when I tried Undervolting and also used Curve Optimizer.

Hmm, my guess is that the settings aren't taking for some reason, maybe a conflict between Ryzen Master and the BIOS?

Meddling-Monk · 2024-10-31T14:11:24+0000

It might just be a BIOS issue, the original Asus Proart X670E (last gen version basically) had the same issue from the first few BIOS editions where none of the automatic ECO mode settings were taking place. Manual settings were needed to make it work. It might be the case here as well.

Also of note, is that the ECO modes offer ECO65 and ECO105, so unless if you were trying the ECO65 mode, the ECO110 is very close to what the 9900x is set to run at in the first place (120W), so there may be very little change in that instance if it is not a BIOS issue as listed above. If you were trying ECO110, try ECO 65 instead and see if it goes down further.