BD Prochot causing throttling even at low temps

[chicobretes]

My laptop is having throttling with basically any game, and the pc goes unusable until I restart it; it's happening even at temps like 60ºC on CPU and 70ºC on GPU, even though the PROCHOT is supposedly at 92º. So, I've had this laptop for 2 years, and have this problem almost from the beginning, going away and coming back, and had no idea what it was (I only discovered about TS, BDProchot, etc some months ago. The CPU used to get at the 80ºs - 90ºs quite easily, and then it would cause the throttling (this problem went away for some months twice if I remember). Now it has been happening constantly since last year, and getting worse. So i installed Throttlestop and MSI Afterburner to undervolt the CPU and GPU, and the temperatures did decrease, but now the laptop still gets throttling even at temperatures below 80ºC, so I really don't know what to do. I have changed fans and power setting, I have cleaned the pc and replaced thermal paste, tried things like drivers and stuff, nothing changes the problem. I have tried disabling the BD Prochot through Throttlestop, but then the laptop just shuts down instead of lagging; also have tried changing Prochot offset to other numbers, bigger or smaller, doesn't change the problem. I don't know if it could be some other piece heating, or a problem with the sensors, or whatever. I really am not being able to use the laptop for anything slightly demanding, games run for like 5 minutes and the throttling comes in.

My laptop is an Acer Nitro 5 AN517-54, RTX 3050 4GB, i7-11800H, 16GB Ram

Here is a log from one of today's gameplay session: TS Log BD Prochot - Pastebin.com

And a screen recording from yesterday showing the problem, with MSI Afterburner statistics: Imgur

And leaving attached some screenshots of Throttlestop

 

[unclewebb]

BD PROCHOT rarely has anything to do with the CPU temperature. BD PROCHOT throttling can happen even when a computer is sitting idle at the desktop. I would use ThrottleStop to disable BD PROCHOT.

You need to disable Windows core isolation memory integrity and anything else VBS related before items in the FIVR window will work correctly. Follow the two links in my signature if you need more help with this. When you run msinfo32, Virtualization Based Security needs to show that it is disabled. After you disable VBS, reboot and delete the ThrottleStop.INI configuration file before running ThrottleStop. Post an updated FIVR screenshot so I can confirm that VBS is disabled.

Look at the Offset column in the FIVR monitoring table. All values are set to +0.0000. That confirms that your -125 mV offset voltage request is being ignored because of VBS.

replaced thermal paste

What thermal paste did you use? Honeywell PTM 7950 is one of the very few that will give good long term results. Some crappy paste like MX-4 can pump out and become useless in as little as two weeks.

I have tried disabling the BD Prochot through Throttlestop, but then the laptop just shuts down

Leave BD PROCHOT disabled.

In the TPL window, check the MMIO Lock box. Set MSR PL1 and PL2 to 45 Watts. An 11800H should be able to run at this power level without crashing. You can try increasing both power limits a little at a time if it runs OK at 45W. I cannot remember what a typical undervolt is for these CPUs. Start testing with the core and cache at a negative offset of -50 mV.

If there is something physically wrong with your computer, disabling BD PROCHOT might help but it is not going to fix the problem. If you cannot get your computer to run reliably with BD PROCHOT not checked in ThrottleStop then it is probably time to retire your laptop. Finding a competent shop that can do board level troubleshooting and repairs can cost more than your 4 year old laptop is worth.

Edit - The on screen data in your video is not accurate. The video shows a minimum speed of 800 MHz. The CPU is actually slowing down to just under 200 MHz when BD PROCHOT throttling is in progress. That is why performance tanks so bad.

 

[chicobretes]

BD PROCHOT rarely has anything to do with the CPU temperature. BD PROCHOT throttling can happen even when a computer is sitting idle at the desktop. I would use ThrottleStop to disable BD PROCHOT.

You need to disable Windows core isolation memory integrity and anything else VBS related before items in the FIVR window will work correctly. Follow the two links in my signature if you need more help with this. When you run msinfo32, Virtualization Based Security needs to show that it is disabled. After you disable VBS, reboot and delete the ThrottleStop.INI configuration file before running ThrottleStop. Post an updated FIVR screenshot so I can confirm that VBS is disabled.

Look at the Offset column in the FIVR monitoring table. All values are set to +0.0000. That confirms that your -125 mV offset voltage request is being ignored because of VBS.


What thermal paste did you use? Honeywell PTM 7950 is one of the very few that will give good long term results. Some crappy paste like MX-4 can pump out and become useless in as little as two weeks.


Leave BD PROCHOT disabled.

In the TPL window, check the MMIO Lock box. Set MSR PL1 and PL2 to 45 Watts. An 11800H should be able to run at this power level without crashing. You can try increasing both power limits a little at a time if it runs OK at 45W. I cannot remember what a typical undervolt is for these CPUs. Start testing with the core and cache at a negative offset of -50 mV.

If there is something physically wrong with your computer, disabling BD PROCHOT might help but it is not going to fix the problem. If you cannot get your computer to run reliably with BD PROCHOT not checked in ThrottleStop then it is probably time to retire your laptop. Finding a competent shop that can do board level troubleshooting and repairs can cost more than your 4 year old laptop is worth.

Edit - The on screen data in your video is not accurate. The video shows a minimum speed of 800 MHz. The CPU is actually slowing down to just under 200 MHz when BD PROCHOT throttling is in progress. That is why performance tanks so bad.

FIVR is now working I suppose, and the safe spot for the cache and core was -90 mv, past that I was getting BSOD on the tests. Still getting the throttling, I disabled the BD Prochot and it still just shuts down the laptop after playing for a while

 

[unclewebb]

FIVR is now working I suppose

Did you delete the ThrottleStop.INI file and shutdown your computer after you disabled VBS? IccMax is set to 139.50. That does not look like a typical default value. Having IccMax set too low can cause stability problems.

I disabled the BD Prochot and it still just shuts down the laptop after playing for a while

Did this used to happen when your laptop was brand new? Probably not. There is likely something physically wrong with your laptop.

safe spot for the cache and core was -90 mV

Did you try reducing the undervolt to -50 mV or less? A computer should not be randomly shutting down. An undervolt that is not 100% stable can cause a computer to shutdown.

 

[chicobretes]

IccMax is set to 139.50. That does not look like a typical default value. Having IccMax set too low can cause stability problems.

I haven't changed these values, it's always been like this on Throttlestop, but I increased it now after you said it.

Did this used to happen when your laptop was brand new? Probably not. There is likely something physically wrong with your laptop.

It didn't shut down because it only shuts down when I disable the Bd Prochot using TS, and I've only been using TS for some months. If Bd Prochot is on, it just throttles and gets all laggy, but doesn't shut down; this happens since I've had the laptop basically.

Did you try reducing the undervolt to -50 mV or less? A computer should not be randomly shutting down. An undervolt that is not 100% stable can cause a computer to shutdown.

Yes, I have tried with lower undervolting / no undervolting. Again, the shut down only happens from disabling the Bd Prochot