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hikari20
Adept I
Adept I

Undervolting?

I just got my new laptop, it has Ryzen 5 3550H with a RX 560X, running on 16GB of 2400Mhz RAM, laptop model is an Acer Nitro 5 2019 AN515-43 R84R. I'm planning to study aboard so I bought that laptop, but then I noticed that when I was playing some games, the battery drops real fast (of course) and CPU is heating up to about 78 degree C. I'm new to AMD and I'm wondering is there any software that allows me to undervolt the CPU? I know many people saying that anything below 85 degree is OK, but I don't want my laptop to sound like a jet engine while maintaining it cool, because I found that kinda annoying since I'm a sound hoarding type of gamer. Will AMD release any feature like this in the future?

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10 Replies
benman2785
Grandmaster
Grandmaster

Re: Undervolting?

you can use RyzenAdj (on github) to reduce the 35W TDP to 20-25W - this will reduce powerdraw
also: you can undervolt your RX560X with WattMan - you only need to enable it via MSI Afterburner

have in mind - Nitro 5 are meant to game on power - not battery

PC: R7 2700X @4.1GHz + RX 580 4G (1500MHz/2000MHz CL16) + 32G DDR4-3200CL14 + 144hz 1ms FS P + 75hz 1ms FS
Laptop: R5 2500U @30W + RX 560X (1400MHz/1500MHz) + 16G DDR4-2400CL16 + 120Hz 3ms FS
hikari20
Adept I
Adept I

Re: Undervolting?

Ok bro, sometimes I just want the CPU to run cooler, the RX 560X is around 10 degree lower. And I don't really want my laptop to sound like a jet, that's all :v

benman2785
Grandmaster
Grandmaster

Re: Undervolting?

hikari20 - i run my Laptop-Fans at "FULL SPEED" with NitroSense

use a good headset or headphones that cover all of your ears and you wont hear it

better a cool laptop than a quiet one


HERE YOUR ANSWER:

to "lower TDP" on Ryzen Laptops (and therefore make them "cooler")
1. download: Releases · FlyGoat/RyzenAdj · GitHub  Version 0.5.2
2. write a batch-file with these code - it will limit the APUs TDP to 15W (instead of 35W in your case)

@echo off
%~dp0\ryzenadj.exe --stapm-limit=15000 --fast-limit=15000 --slow-limit=15000 --vrmmax-current=65000
echo MSGBOX "APU runs now with 15W TDP" > %temp%\15Wmsgbox.vbs
call %temp%\15Wmsgbox.vbs
del %temp%\15Wmsgbox.vbs /f /q
exit

3. place this batch into the RyzenAdj folder
4. run the batch as admin - you can also create a desktop-shortcut and check "run as administrator" - this will allow fast usage

this will reduce performance a little but will result in better temps
you can play around with the "15000" - like make all 3 to "21000" and your Ryzen 5 3550H will have a TDP of 21W

you HAVE to change run this after each reboot - TDP will be revert every bootup

PC: R7 2700X @4.1GHz + RX 580 4G (1500MHz/2000MHz CL16) + 32G DDR4-3200CL14 + 144hz 1ms FS P + 75hz 1ms FS
Laptop: R5 2500U @30W + RX 560X (1400MHz/1500MHz) + 16G DDR4-2400CL16 + 120Hz 3ms FS
botaks
Journeyman III
Journeyman III

Re: Undervolting?

Can you use that to undervolt cpu?

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benman2785
Grandmaster
Grandmaster

Re: Undervolting?

no - it does not undervolt APU - what it does is limiting max tdp

and it only works on AMD Ryzen APUs

PC: R7 2700X @4.1GHz + RX 580 4G (1500MHz/2000MHz CL16) + 32G DDR4-3200CL14 + 144hz 1ms FS P + 75hz 1ms FS
Laptop: R5 2500U @30W + RX 560X (1400MHz/1500MHz) + 16G DDR4-2400CL16 + 120Hz 3ms FS
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Johnkata
Journeyman III
Journeyman III

Re: Undervolting?

How i make lower temperature on amd radeon rx580 asrock gaming phantom 8gb

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edward23401
Journeyman III
Journeyman III

Re: Undervolting?

works with all laptops?

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benman2785
Grandmaster
Grandmaster

Re: Undervolting?

@Johnkata please open a new topic for that - dont spam your GPU question into a Laptop question...

but here are 2 pro-tips:
1. ramp up fan speed in driver // will make a little to alot more noise (depends on what you set as Fancurve) and will definitely make your RX580 run cooler
2. undervolt the powerstates 6 and 7 - make sure your card is still stable in games

PC: R7 2700X @4.1GHz + RX 580 4G (1500MHz/2000MHz CL16) + 32G DDR4-3200CL14 + 144hz 1ms FS P + 75hz 1ms FS
Laptop: R5 2500U @30W + RX 560X (1400MHz/1500MHz) + 16G DDR4-2400CL16 + 120Hz 3ms FS
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benman2785
Grandmaster
Grandmaster

Re: Undervolting?

@edward23401 
AdjRyzen works with ALL Ryzen laptops ;)

PC: R7 2700X @4.1GHz + RX 580 4G (1500MHz/2000MHz CL16) + 32G DDR4-3200CL14 + 144hz 1ms FS P + 75hz 1ms FS
Laptop: R5 2500U @30W + RX 560X (1400MHz/1500MHz) + 16G DDR4-2400CL16 + 120Hz 3ms FS
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