[GH-ISSUE #1417] Config for HP Probook 445 G8 with Ryzen 7 5800U - target fan speed control problem #1221

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opened 2026-02-26 00:34:42 +03:00 by kerem · 2 comments

kerem commented

2026-02-26 00:34:42 +03:00

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Originally created by @FCPerfectO on GitHub (Dec 15, 2024).
Original GitHub issue: https://github.com/hirschmann/nbfc/issues/1417

Hello,

Can someone create config for HP Probook 445 G8 with Ryzen 7 5800U? I tried to use all other HP configs, but no one worked. Thank you.

Originally created by @FCPerfectO on GitHub (Dec 15, 2024). Original GitHub issue: https://github.com/hirschmann/nbfc/issues/1417 Hello, Can someone create config for HP Probook 445 G8 with Ryzen 7 5800U? I tried to use all other HP configs, but no one worked. Thank you.

kerem

2026-02-26 00:34:42 +03:00

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kerem commented

2026-02-26 00:34:42 +03:00

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@FCPerfectO commented on GitHub (Dec 15, 2024):

I used RWEverything, got my laptop's DSDT.

Offset(0x22), //Offset(34), CRZN, 8, THTA, 8, HYST, 8, CRIT, 8, TEMP, 8, TENA, 8, KBBL, 8, TOAD, 8, PHTP, 8, THEM, 8, TMPO, 8, AFAN, 8, FRDC, 8, FTGC, 8, PLTP, 8,

So, I made my new Config with:
ReadRegister: FRDC is at 0x2E = 46 (decimal)
WriteRegister: FTGC is at 0x2E + 1 byte = 47 (decimal)
ReadWriteWords: must be set to false, because the EC uses only one 8 bit (= 1 byte) wide register to store the fan speed instead of 2 8 bit wide (= 2 byte = 1 word) registers
CRZN is at 0x22 = 34 (decimal) and allows us to select the current thermal zone
TEMP is at 0x22 + 4 byte = 38 (decimal) and allows us to get (or set) the temperature of the currently selected thermal zone

Just like in manual.

But why Min. speed is 255 and Max. speed is lower and 20?

"Thermal zone values and Fake thermal zone" 1 and 28, "Reset values" 1 and 0, are correct? No info about that in manual.

But I can't load this new config, NBFC bugged and switch every 2 sec between Disabled:
{4F0AFA95-9A77-4DE8-806F-685C454EF16F}
and "Read-only" mode with HP Pavilion dv6 6190 config selected. Even when I switch it to my new config "HP ProBook 445 G8 Notebook PC" in settings. Uninstall of NBFC didn't help.
{7A6AAF39-4650-4777-8A23-14CB57DD5486}

Some config of NBFC is left after uninstall?

UPDATE:

I managed to apply new Config, but NBFC still switching every 2 seconds from Disabled to Read-only and nothing works. Run as Administrator didn't help. Any advice here, please?

UPDATE #2
Found new plugin that helped me from other topic "https://github.com/UraniumDonut/nbfc-revive/issues/128#issuecomment-2077452886". Service status "Enabled" works, Temp info works, Current fan speed works, but CPU fan control doesn't work - I change Auto to some other value, but current fan speed doesn't change.

Any advice here plz? How can I find correct values for Min. and Max speed, Reset value, Temperature thresholds and Fan speed overrides?

Also, in my DSDT there are no values like:
RSTV, 8 // Manual Mode Switch, 8bit
FNMN, 8 // FAN Minimal RPM, 8bit
FNMX, 8 // FAN Maximal RPM, 8bit

Maybe some other names for Manual Mode Switch and MIN/MAX RPM?

HP ProBook 445 G8 Notebook PC DSDT.txt

The only similar to FNMN and FNMX names are MNCG and MXCG - can't be it?

Offset(0xBD),	//Offset(189),
BMO, 8,
, 8,
BRCV, 8,
, 8,
BIF, 8,
BRCC, 8,
, 8,
CPSN, 8,
SCPS, 8,
, 8,
MXCG, 8,
MNCG, 8,

But how can I find RSTV analog in my DSDT? I found only "LCTV, 1,", can it be RSTV?

Offset(0x80),	//Offset(128),
ESID, 8,
, 4,
SLPT, 4,
FNSW, 1,
SFNC, 1,
ACPI, 1,
, 1,
, 1,
, 1,
, 1,
DETF, 1,
LIDS, 1,
TBLT, 1,
, 1,
LIDN, 1,
TBTA, 1,
, 1,
, 1,
, 1,
ADP, 1,
ADID, 2,
LCTV, 1,

@FCPerfectO commented on GitHub (Dec 15, 2024): I used RWEverything, got my laptop's DSDT. `Offset(0x22), //Offset(34), CRZN, 8, THTA, 8, HYST, 8, CRIT, 8, TEMP, 8, TENA, 8, KBBL, 8, TOAD, 8, PHTP, 8, THEM, 8, TMPO, 8, AFAN, 8, FRDC, 8, FTGC, 8, PLTP, 8,` So, I made my new Config with: [ReadRegister](https://github.com/hirschmann/nbfc/wiki/Basic-fan-configuration#readregister): FRDC is at 0x2E = 46 (decimal) [WriteRegister](https://github.com/hirschmann/nbfc/wiki/Basic-fan-configuration#writeregister): FTGC is at 0x2E + 1 byte = 47 (decimal) [ReadWriteWords](https://github.com/hirschmann/nbfc/wiki/Basic-configuration#readwritewords): must be set to false, because the EC uses only one 8 bit (= 1 byte) wide register to store the fan speed instead of 2 8 bit wide (= 2 byte = 1 word) registers CRZN is at 0x22 = 34 (decimal) and allows us to select the current thermal zone TEMP is at 0x22 + 4 byte = 38 (decimal) and allows us to get (or set) the temperature of the currently selected thermal zone Just like in manual. <img width="604" alt="{DF55DD8C-D2E2-4BB5-A067-CAC5E85C4179}" src="https://github.com/user-attachments/assets/106d87a2-0322-43e3-a380-05ac664fc24e" /> But why Min. speed is 255 and Max. speed is lower and 20? "Thermal zone values and Fake thermal zone" 1 and 28, "Reset values" 1 and 0, are correct? No info about that in manual. <img width="606" alt="{4783FE75-9F32-47D7-BC81-D8C3E7611804}" src="https://github.com/user-attachments/assets/e1dcca7c-5bfa-4560-bc14-8bb004fe859c" /> But I can't load this new config, NBFC bugged and switch every 2 sec between Disabled: <img width="310" alt="{4F0AFA95-9A77-4DE8-806F-685C454EF16F}" src="https://github.com/user-attachments/assets/4d6f8579-5d74-4407-83b3-454677337e58" /> and "Read-only" mode with HP Pavilion dv6 6190 config selected. Even when I switch it to my new config "HP ProBook 445 G8 Notebook PC" in settings. Uninstall of NBFC didn't help. <img width="309" alt="{7A6AAF39-4650-4777-8A23-14CB57DD5486}" src="https://github.com/user-attachments/assets/a9595a19-8551-4882-aae4-4d3e49208dd9" /> Some config of NBFC is left after uninstall? UPDATE: <img width="310" alt="{A64F91BA-7545-4D31-999A-C65FB6C6EC09}" src="https://github.com/user-attachments/assets/86cebba3-a5ca-4e48-9f67-1a7792e2b2ba" /> I managed to apply new Config, but NBFC still switching every 2 seconds from Disabled to Read-only and nothing works. Run as Administrator didn't help. Any advice here, please? UPDATE #2 Found new plugin that helped me from other topic "https://github.com/UraniumDonut/nbfc-revive/issues/128#issuecomment-2077452886". Service status "Enabled" works, Temp info works, Current fan speed works, but CPU fan control doesn't work - I change Auto to some other value, but current fan speed doesn't change. <img width="633" alt="{3A08E44B-7DED-4AFD-8665-32A7518DEAE7}" src="https://github.com/user-attachments/assets/17df0c7d-1513-4007-b530-64b09e87708d" /> Any advice here plz? How can I find correct values for Min. and Max speed, Reset value, Temperature thresholds and Fan speed overrides? <img width="628" alt="{FCAACD8C-A7D6-4799-B9EE-98193E86A817}" src="https://github.com/user-attachments/assets/2d23a0dd-0e7b-4f51-abf4-40daa8107bef" /> Also, in my DSDT there are no values like: RSTV, 8 // Manual Mode Switch, 8bit FNMN, 8 // FAN Minimal RPM, 8bit FNMX, 8 // FAN Maximal RPM, 8bit Maybe some other names for Manual Mode Switch and MIN/MAX RPM? [HP ProBook 445 G8 Notebook PC DSDT.txt](https://github.com/user-attachments/files/18143028/HP.ProBook.445.G8.Notebook.PC.DSDT.txt) The only similar to FNMN and FNMX names are MNCG and MXCG - can't be it? ``` Offset(0xBD), //Offset(189), BMO, 8, , 8, BRCV, 8, , 8, BIF, 8, BRCC, 8, , 8, CPSN, 8, SCPS, 8, , 8, MXCG, 8, MNCG, 8, ``` But how can I find RSTV analog in my DSDT? I found only "LCTV, 1,", can it be RSTV? ``` Offset(0x80), //Offset(128), ESID, 8, , 4, SLPT, 4, FNSW, 1, SFNC, 1, ACPI, 1, , 1, , 1, , 1, , 1, DETF, 1, LIDS, 1, TBLT, 1, , 1, LIDN, 1, TBTA, 1, , 1, , 1, , 1, ADP, 1, ADID, 2, LCTV, 1, ```

kerem commented

2026-02-26 00:34:42 +03:00

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@github-actions[bot] commented on GitHub (Jun 16, 2025):

This issue is stale because it has been open more than 180 days with no activity. If nobody comments within 7 days, this issue will be closed

@github-actions[bot] commented on GitHub (Jun 16, 2025): This issue is stale because it has been open more than 180 days with no activity. If nobody comments within 7 days, this issue will be closed