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[BIOS/vBIOS - MODS] Prema Mod™ & Stock

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HotKeyApp is interfacing with the EC controller.

Try to freshly install a non modded mobile NVIDIA driver and re-install latest HotKeyApp. for your system:

ftp://ftp.clevo.com.tw/P37xSM-A/OTHERS/Hotkey.zip

Tried that with lastest 347.52 and the hotkey app you linked, no crashes nut again no brightness control in windows power or the Fn+F8/F9 keys. The hotkey app runs and shows the brightness control but it changes nothing. I also tried using the windows default driver for the graphics card. This enables the Fn+F8/F9 but it doesn't actually change the brightness.

Another thing is the default resolutions and refresh rates look messed up for the display making it seem out of phase, lot sof horizontal lines etc. I had to customize my own in nvidia control panel to fix it.

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Just had a hunch, do the EC bios contain specific code for each approved Clevo LCD something like a whitelist which allows control of brightness etc?

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There is no whitelist but if the screen internal firmware can't interface with the EC then such things just don't work...

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Dang,\guess we are out of luck on getting the only 17.3" IPS panels to work with our Clevos. It was looking so good as well, 100hz and gsync! On the resolutions and refresh rates, it was all working in the bios and pre boot of windows. Only once windows booted up at the logon prompt does it get messed up. Had that fixed but no brightness control is a definite no no unless Clevo adds it in a later EC bios.

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I'm sorry, I've already registered but I can't download your attachments. Why?

you have to post 5 posts so you can download ^^

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Prema, can I use a newer version of the EC bios 3_07 with the modded np377sm bios? Do I just flash the EC 3_07 bios then reboot etc?

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Prema, can I use a newer version of the EC bios 3_07 with the modded np377sm bios? Do I just flash the EC 3_07 bios then reboot etc?

Yes you can just update to the EC from the stock BIOS/EC package by hitting "x" and confirming with "enter".

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Hello everyone!

It is a pleasure to have Prema! Thanks to our pc's are not far behind.

Prema thank you very much for your work and answer questions.

I have a question!

I have a pc clevo p170sm, prema bios mod v2 and hope nvidia gtx 970m.

I have the downloaded driver and the modified inf file.

I will do a new installation of Windows and with the new nvidia.

Nvidia to work on my computer, I need mandatory to install windows on UEFI (gpt) or the card will also work on legacy (mbr)?

Thank you for your help

Cristianroso7

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Hello everyone!

It is a pleasure to have Prema! Thanks to our pc's are not far behind.

Prema thank you very much for your work and answer questions.

I have a question!

I have a pc clevo p170sm, prema bios mod v2 and hope nvidia gtx 970m.

I have the downloaded driver and the modified inf file.

I will do a new installation of Windows and with the new nvidia.

Nvidia to work on my computer, I need mandatory to install windows on UEFI (gpt) or the card will also work on legacy (mbr)?

Thank you for your help

Cristianroso7

Doesn't matter how Windows is installed, just uninstall the old driver properly before the update.

Legacy and UEFI are both fine.

Not complaining, but are the P770ZM BIOS mod in the works?

Thanks

;)

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PREMA, what is your opinion on ram? 1600 CL9, 1866 CL10 or 2133 CL11.

If you care about memory performance find some old M471B5273DH0 sticks. You can expect CL9 2133 or CL11 2400, maybe even CL10 2400.

These sticks have a measly 1600Mhz or 1333 MHz stock clock, but they overclock the best of any memory ever made for laptops. In the part number the CK0 or CH9 at the end does not matter, but the part number must have DH0, not CH0.

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If you care about memory performance find some old M471B5273DH0 sticks. You can expect CL9 2133 or CL11 2400, maybe even CL10 2400.

These sticks have a measly 1600Mhz or 1333 MHz stock clock, but they overclock the best of any memory ever made for laptops. In the part number the CK0 or CH9 at the end does not matter, but the part number must have DH0, not CH0.

Too bad those are 4GB but they are quite cheap for sure.

Sent from my Nexus 6 using Tapatalk

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If you care about memory performance find some old M471B5273DH0 sticks. You can expect CL9 2133 or CL11 2400, maybe even CL10 2400.

These sticks have a measly 1600Mhz or 1333 MHz stock clock, but they overclock the best of any memory ever made for laptops. In the part number the CK0 or CH9 at the end does not matter, but the part number must have DH0, not CH0.

How do you overclock them on a Clevo?

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use intel xtu :)

Eh didn't want that. I want something that is fast all the time, since I dual boot Linux. Not interested in Windows only OC software. Hence why I have a 4790K that is always 4 ghz or faster.

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well in that case theres no way around premamod :rolleyes:

intel xtu actually changes the settings in the system bios, but not sure if it would stick in linux as well. could be worth a try!

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Eh didn't want that. I want something that is fast all the time, since I dual boot Linux. Not interested in Windows only OC software. Hence why I have a 4790K that is always 4 ghz or faster.

The settings stick. I believe the Intel Management Engine that is hooked into the BIOS is responsible for saving that info.

well in that case theres no way around premamod :rolleyes:

intel xtu actually changes the settings in the system bios, but not sure if it would stick in linux as well. could be worth a try!

Sticks in Linux just fine. At least CPU overclocking does. I would assume memory would as well. I haven't tried to overclock my memory because I don't want to have to pull my CMOS battery if I push the settings too far. Last time I had to pull that I broke the clip and the pins came out, took me about 10 minutes to push the pins back in.

Sent from my Nexus 6 using Tapatalk

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thats the good thing about intel xtu though: if u set unstable settings, then everything reverts back to default at the next reboot :) thats also why i prefer using xtu as compared to direct bios setting...

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thats the good thing about intel xtu though: if u set unstable settings, then everything reverts back to default at the next reboot :) thats also why i prefer using xtu as compared to direct bios setting...

Are you sure that is the case for memory? On every machine I've ever owned, if I pushed the memory too far the machine wouldn't POST for the watch dog to reset the settings. Otherwise I would have tried to tweak my Wintec memory I have right now.

Sent from my Nexus 6 using Tapatalk

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Memory overclocking in XTU is flashed into NVRAM, so it applies to boot and any OS as well.

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i just finished a one week tweaking marathon with my corsair vengeance sticks, you have NO idea how many times i had to reboot due to system crashes *lol* didnt take out the cmos battery even once :)

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Memory overclocking in XTU is flashed into NVRAM, so it applies to boot and any OS as well.

Hmmm I have Ballistix coming with 1866 cl10 w/xmp. Would that OC?

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Hmmm I have Ballistix coming with 1866 cl10 w/xmp. Would that OC?

You might get a little out of it, but not as much as with Samsung sticks.

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