PC Processors

[Quantom]

Cheers everyone! On days I've had checked out my ASUS TUF A15 (FA507NV) for Undervolting options, sucessfuly undervolted my RTX4060 on by 125mV, and tryed to undervolt Ryzen 7735HS, and… Nothing. It restrixt any undervolt options that I found. UXTU Curve Optimizer didn't work. It applyes, bot nothing changes, even on -50mV. G-Helper undervolting didn't work too, logs says that just "FAILED", (so I don't know what caused this). Even Smokeless UMAF  just not shows up whole AMD CBS menu. I had check all of it, any options, no way to undervolt my R7735HS.

So, from all of factors I said before, I think that BIOS of my laptop just had not any options for undervolting… Well, that not as critical. I hope up on repacking it's BIOS to add a undervolting function, but, before I start it I wish know, does R7735HS realy have hardvare bazed undervolting options? Does anyone know about it? Maybe some not-ASUS laptops have it inside? Let me know please!

P.S. Why I even hope on it: If you know, R7735HS It's just some overclocked R6800H. Ryzen 6800H, for sure, has a undervolting option, and it working very vell. So… If they are pretty the same, why I can't undervolt R7735HS when others sucessfuly ubdervolt R6800H?...

P.P.S. Can I too limit maximum SoC Voltage at 1.25V? Now my laptop likes give my R7735HS up to 1.5V, even when it used only on 5-10%. I don't like it, 'cause it realy can damage my CPU, even if this is a AMD Certificied (I didn't found ani info about that), I pretty sure that I want to limit it on 1.25V, but how... Even UMAF don't have such options, and this is 2nd reason I vant to reassable my BIOS to support that.

P.P.P.S. If you want to check my info about R6800H=R7735HS -> https://nanoreview.net/en/cpu-compare/amd-ryzen-7-7735hs-vs-amd-ryzen-7-6800h
+ R6800H undervolt (uptopic in marked as "not supported", but check comments, it supported) : https://github.com/seerge/g-helper/discussions/736

[Quantom]

Hi! As I said before, i have ASUS TUF A15 laptop, and it's (even lastest 312 BIOS: https://www.asus.com/laptops/for-gaming/tuf-gaming/asus-tuf-gaming-a15-2023/helpdesk_bios/?model2Nam...) does not support it, even if  I use Smokless UMAF to acsess that BIOS options that provided in BIOS, but hidden up by manufacter, BIOS just don't know what it is "undervoltong".
By this reason, any other soft, for example Ryzen Master, restricting my installing, it fails with error "unsupported processor". As I think this is caused by BIOS.

Like Ryzen Master, any other Ryzen tunint tools that I fond or don't install (fully like RM), or instal, but not work. UXTU and G-Helper this is the only software that sucessfully installed and works.

Anyway, thanks for info, you sure that Dell Inspiron 15 3535 have R7745HS too, and it sucessfuly undervolts. Can you give me a link on info that confirms this? Thanks!

[goodplay]

The processor is locked out of overclocking, https://www.amd.com/en/product/12941

[Quantom]

Ryzen 7940HS is locked for overclocking too, BUT you can undervolt it. Ryzen 6800H is locked for overclocking, BUT you too can undervolt it. At least most of AMD mobile processors are UNlocked for undervolting. So I asked is it UNlocked of UNDERVOLTING, not for OVERCLOCKING. As I know, any Ryzen Mobile CPU from 7000 series are locked for overclocking...

[MentalRay]

I have the same laptop, if you manage to lower the processor voltage, please write what you did and how. Thank you!

[Quantom]

Hi! I'm looking up to modifying stock ASUS BIOS to support that. Today I writed to AMD, hope they ansver me soon. If processor possible to undervolting I going to disassamble dump of my BIOS, BIOS from some same laptops, that can be undervolted, and hope find that part of it's code what make BIOS to set custom VCORE offset, and integrate this into my BIOS.
If AMD ansver me that R7735HS impossible to undervolt... Well, then I going to close this thread (off course, I will write that official AMD ansver is "no, U can't undervolt"), and this is will be final.
Anyway, if there will be any updates I will write there, just subscribe to thread and wait)

P.S. By now I disabled PBO (PrecisionBoostOverride) using Smokeless_UMAF (you can find it there: https://github.com/DavidS95/Smokeless_UMAF , PBO option is in Device Manager -> AMD CBS -> CPU Common Options ->Core Performance Boost, set it to "<Disabled>". You need UMAF Beta, not stable version, it doesn't support this options. By now my R7735HS boosting only up to 3.2Ghz, and using around 30-32 watts, I using this in case of temporary solution.

[goodplay]

Obviously laptop makers will also lock out manipulation of the processor parameters to protect their product, some may allow certain changes if they choose to.

If you want an official answer on the voltage locked or not, try the service request https://www.amd.com/en/forms/contact-us/support.html

Although i doubt they will give any other info that 3rd party app. modders could use. 

[Zialtenn]

They cannot be undervolted, only the temperature can be limited or the boost turned off. Tell me how did you do it, please?

[MentalRay]

For a 4060 laptop, is there a way to set the temperature limit below 75 degrees without using undervolting? Or is it blocked by Nvidia?
Reducing the voltage by 125 mV lowered the temperature?

[Quantom]

You can set it using UXTU (Custom profile settings -> temperture limit) or G-Helper (use fan settings  -> GPU -> target temperture). Anyway, I recomend you to undervolt your 4060 using MSI Afterburner, 'cause my own sucessfuly undervolted up to -125mV. That lovered power usage from 140Watts to 100~ Watts, and now it heats up only to 73-75 Celsius under load. All of that with same frequency as on stock!
P.S. stock properties: 140 Watts usage, 1.0V GPU_CORE_VOLTAGE, 2460MHz (max boost clock), 86-88 Celsius (on 100% Fan speed + Laptop Fan desk)
After -125mV undervolt: ~100Watts usage, 0,885mV GPU_CORE_VOLTAGE, 2460 (max boost clock), 72-74 Celsius (too on 100% Fan speed + my Fan desk on 100% speed)

[MentalRay]

Thanks! Can you attach a screenshot of your voltage curve for 4060? I don't have much experience in this yet. Thanks again!

[Quantom]

My curveSome stress testGPU, consumig around 100-105WP.S. Sorry for late answer, I had a terrible week... Only now had opportunity to use my laptop...

[MentalRay]

Щиро Дякую!)

[lo7ted]

I wrote to ASUS Support and they told me that that feature are locked in our devices (FA507NV). Now I said why it locked and they just ignoring me xD

[1-SLI-GUY]

Hey, that sucks ASUS support sucks. But I have a mini pc with a 7735hs and yea the temps are too much for it's dinky heatsink. Anyway I found this software that lets you adjust the cpu and igpu settings. But your HWINFO is showing the 105W power for the RTX 4060 GPU. Are you sure undervolting the cpu is what you want to do?

Before I go any further I just want to make it clear that your warranty will be void if overclock any of PC components based on ASUS policy. Changing power limits and other overclocking settings can damage your PC, cause your cpu and other pc components to over heat, cause permanent damage to your computer and make it completely unusable if settings are adjusted to incorrectly or adjusted beyond what the components were designed and rated to operate at. I understand you want to undervolt the cpu so please be careful and do not adjust settings that you do not know how to configure. I am not responsible if you damage your system as a result of using the software incorrectly. Okay, so if you decide to play overclocking roulette and your laptop stops working don't bother asking me how to fix it. Cool.  

Anyway the soft is called "Universal x86 Tuning Utility" it allows you to adjust power settings on the igpu which is the graphics processor the  on the 7735HS and cpu but it does not provide power control for a dedicated gpu like your RTX 4060. For your gpu I dont think you need to lower the voltage if you want to lower the power consumption you sould just switch the igpu for the display output. There should be an option in your bios or  you may have to use some ASUS software and some laptop have a hotkey that can switch between gpu and igpu for display output. I attached a pic from the software website which shows an exampled of the controls. 

I hope this helps you.

 https://amdaputuningutility.com/images/adaptive-image.png 

[elstaci]

According to AMD Specs on the Ryzen 7735HS is has a programmable TDP rating: https://www.amd.com/en/products/apu/amd-ryzen-7-7735hs

Default TDP

35-54W

The above is one way to make your Mobile processor to run cooler by lowering the TDP rating from its default, lets say it is 45W, to 35 Watts.

BUT your laptop Manufacturer will need to have the proper BIOS Setting to do this. If there is no BIOS setting to change the processor's TDP rating that indicates the manufacturer has permanently locked the processor from be changed in any way.

EDIT: There is a Ryzen Master Lite type clone for laptops that can be used to monitor and possibly change some parameters of the processor. It is a 3rd party app. You download it from here:

https://gitlab.com/ryzen-controller-team/ryzen-controller/-/releases/2.5.4

https://github.com/Ryzen-Controller-Team/Ryzen-Controller

https://ryzen-controller.en.lo4d.com/windows

From the Io4d link:

Control power, speed, fans and overheating with Ryzen laptops

Ryzen Controller is an open source utility that unleashes the power of AMD Ryzen laptops with an easy-to-use GUI. Tweaks can be saved as custom presets which can be enabled whenever you need extra power - or disabled when you want to keep things cool.

Within Ryzen Controller it is possible to set power and temperature limits beyond what your laptop's cooler is likely to be capable of dealing with, so there is a risk that you could damage your CPU or other laptop components through overheating, especially if your laptop is a low-end notebook with no large fans.

Within Ryzen Controller it is possible to set power and temperature limits beyond what your laptop’s cooler is likely to be capable of dealing with, so there is a risk that you could damage your CPU or other laptop components through overheating, especially if your laptop is a low-end notebook with no large fans and poor ventilation.

Setting TDP limits too high can also allow the temperature of the laptop chassis to increase to the extent that it could burn you if you hold the laptop or use the keyboard, and may even be a fire hazard if used on flammable surfaces that restrict airflow.

Features of Ryzen Controller

• AMD StoreMI: Accelerate your storage for faster load times.
• Auto-Overclocking: Automatically maximizing performance.
• Core Performance Boost: Automatically boost frequency of select cores.
• Custom Profiles: Create custom profiles for your system.
• Fan Control: Customize cooling settings for optimal performance.
• Power Plan Control: Manage power plans for optimal performance.
• Precision Boost Overdrive: Push the boundaries of Ryzen processor performance.
• Profile Synchronization: Synchronize profiles across devices.
• RAMDisk: Create a virtual RAM drive to save time.
• Real-Time Monitoring: Track real-time performance and temperatures.
• Settings Profiles: Easily switch between multiple settings profiles.
• Stress Testing: Test the stability of your system with a fast stress test.
• System Diagnostics: Get detailed diagnostics of your system.
• System Logging: Monitor system performance over time.
• System Tuning: Fine-tune system settings for optimal performance.

[AMID_of_IT_all]

Run IC's like CPU's outside the voltage margin needed for reliable data processing and find out what happens: Data corruption. The user has no idea what data might get corrupted after undervolting. It might be OS system files or maybe personal files. But data is written to the bios too. If the Bios gets corrupted say by by to your PC or replace the IC containing the bios. Because the bios contains the whole hardware configuration of all the parts of the system some of these parts might get damaged if the wrong values by which they operate were written to the bios by for example Ryzen Master software. It's a small change but these things do happen.  And all for what? A few degrees lower operating temp of the CPU? All this proves that some people are not able to make a proper risk benefit analysis. What's next? Undervolting your EV in order to save electricity and experience that the brakes don't work in that configuration while "low cost" speeding on the highway? There is a very good reason technicians respect the operating specs of ALL kinds of hardware. If you don't your not a technician but an amateur at best and a complete idiot in the worst case scenario. You'd better hope deranged "technical" gamers don't modify your Tesla's S Model's firmware while servicing your car...... It's a scary idea to realize that al lot of these folks have low level technical jobs and access to all kinds not properly tested firmware images at the same time.