Is Speed Shift patch compatible with BIOS 906?

[MarFre22]

Hi,

First of all, thanks to all the members who help daily in this community!

Long time ago I saw the Intel Speed Shift patch for Mi Notebook Pro and I'd to ask if this patch is compatible with BIOS 906. Also, if it makes a difference in battery life and/or in performance.

Other Xiaomi Pro's GitHub page where we can find more information about this patch: https://github.com/Cr0wTom/Mi-Notebook-Pro-Mods

Thank you very much for the attention!

[Menchen]

I think it's compatible, but make sure that you made a backup and have a way to reflash it in case that something went wrong. You would need a CH341 or any Seria to the USB device and another PC.

I don't think that Speed Shift would make a huge difference but it's nice to have, In my opinion, the ability to undervoltage are far more important that SS, because it both improve thermal and battery life(Less power, less heat generated and longer battery).

Also if your device is Gen 8 Cpu with MX150 you could downgrade to lower BIOS and EC so you can have fan patch too.

[MarFre22]

Thank you very much for the quick response!

I have 8th gen and MX150, but I prefer 906 BIOS due to keyboard backlight.

Long time ago, I do not know what I did, but I can change voltage in XTU on Windows. So can I use voltageshift on MacOS, right?

Do you know what voltage I can put in order to have more battery life with same stock performance?

[MarFre22]

@Menchen I just activated Speed Shift, it's working! When I try to check status on Pasi-Studio's "Modify TDP and CPU voltage" script, it gives me that (I unlocked Bios + Voltage and I rebooted without lock the bios): It seems the script does not download anything to /Library/Application Support/, I do not have any folder called "VoltageShift".

[Menchen]

Did you run the option one?

[MarFre22]

Yes, but somehow I tried another time and it worked. Thanks!

After saw all the options, I do not need more than 15w base. The second option or the fourth, do they have more battery consumption?

[Menchen]

Try to Under volt, note that power limit is the maximum power your cup can use before it throttle, so using 25w as p1 would be same as 15W if your system is under no stress.

I would say 25w for p1 and 40w for p2 is the best value

[MarFre22]

Interesting, I didn't know about it. Thanks!!

I managed to undervolt using @fladnaG86 script with -100 cpu, -70 gpu and -100 cache memory. (fladna's won the silicon lottery btw XD) Need I copy the edited VoltageShift kext (edited with voltage set.command) to EFI, right?

Is my undervolting any better than 25w p1 and 40w p2 for more battery and a little more performance?

Edit: I made a automator's app that, automatically, during the boot, open the "voltage set.command" script. It's working and I don't need to add that kext (that can make EFI unstable).

[MarFre22]

After some testing, with Speed Shift + undervolting I have better thermals, more performance and more battery.

Like I said, I made an automator's app in order to replace the VoltageShift kext. - VoltageShift_replace_kext.zip You need to copy "voltageshift" folder and "VoltageShift-Documents_Folder.app" to Documents Folder. Go to System Preferences -> Accounts -> Login items and add this "VoltageShift-Documents_Folder" app.

So it’s working, I hope I’ve contributed.

[Menchen]

You need to re run the patch for each wake as the effect is lost after sleep.

[MarFre22]

Sorry for close this issue. I forgot to test the sleep and wake cycle, thanks @Menchen!

To solve this you can follow my previous comment, https://github.com/daliansky/XiaoMi-Pro-Hackintosh/issues/389#issuecomment-626885056, then download Power Manager app (here you have a "licensed" one - Power Manager 548.zip ). Import my custom Schedule File into the app - VoltageShift schedule file for Power Manager.zip . Verify that you started the app (upper left corner).

Now I think it's working.

[Menchen]

You could just use the LaunchDaemon I edited in https://github.com/daliansky/XiaoMi-Pro-Hackintosh/issues/174 ... It automatically runs each 30m I think?

[MarFre22]

You could just use the LaunchDaemon I edited in https://github.com/daliansky/XiaoMi-Pro-Hackintosh/issues/174 ...

I tried with SleepWatcher into Homebrew but It didn't work.

Also I don't know how to use LaunchDaemon. If you have availability to do that, it will be a huge help.

It automatically runs each 30m I think?

I think SleepWatcher it's a good choice, because it identifies the sleep and wake, so it isn't necessarily run, automatically, the script every 30min.

[greenguyy]

@Menchen I just activated Speed Shift, it's working! When I try to check status on Pasi-Studio's "Modify TDP and CPU voltage" script, it gives me that (I unlocked Bios + Voltage and I rebooted without lock the bios):

I have been trying to find this script to run. I have been getting restart or constant kill task when I run voltageshift. I have updated the BIOS to 603 and to 906 both with unlock voltage patches and unlocked bios.

Could you share where you get the Pasi Studio's TFP and CPU voltage script?

[Space-Cadet0]

Easiest way is to type the following into the terminal:

sh -c "$(curl -fsSL https://raw.githubusercontent.com/Pasi-Studio/mpcpu/master/mpcpu.sh)"

[MarFre22]

@greenguyy , or you can use the update script (which I used): bash -c "$(curl -fsSL https://raw.githubusercontent.com/daliansky/XiaoMi-Pro-Hackintosh/master/install.sh)" and enter the number 8. I don't know what's the best.

[greenguyy]

@MarFre22 and @Mikes0 Both of the scripts work perfectly. i was skeptical about the first 2 tries whereby the watt remained at 15W even after I selected 20W option for PL1. After a few restarts and it just started to strap at 20W. Thanks guys!