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1.6v on gpu core?

WarDaddy

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Hello, I'm trying to understand the voltage table in maxwell bios tweaker 2, as far I know the card runs at 1.2v right? Then why is there 3 columns with 1.6v max??
 

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Those are for memory.
 
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It's not advisable to flash a GPU BIOS on a mobile platform. You're gonna brick it, unless you know exactly what you're doing.

And yes, quite obviously 1.6V would be for GDDR5 memory.
 

WarDaddy

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It's not advisable to flash a GPU BIOS on a mobile platform. You're gonna brick it, unless you know exactly what you're doing.
Well that is why I'm asking here :) but in case of brick I can just flash the original bios from a bootable right? Also gpu-z never showed more than 1v over long periods of full load at 1038mhz, but in the bios tweaker is full of 1.2mv values, I'd like to know what I can adjust and what not.
 

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You brick it, most likely it's gone.
 
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To elaborate on that...you're going to brick your laptop. If you brick the GPU you won't be able to boot, and you'll have no display(black screen). So you'll have no way to get into the BIOS to switch to onboard graphics. The GPU BIOS is integrated into the motherboard BIOS. Just because you're able to save it, doesn't mean you can edit it and/or flash it. You'll botch the whole works if you try without knowing exactly how to do it. It takes a very special procedure to do it correctly. I can't give you any insight into what it is(as I haven't a clue). And I don't know of anyone here that can.
 
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Well that is why I'm asking here :) but in case of brick I can just flash the original bios from a bootable right? Also gpu-z never showed more than 1v over long periods of full load at 1038mhz, but in the bios tweaker is full of 1.2mv values, I'd like to know what I can adjust and what not.

The real question you need to be asking yourself is 'why'. And there is no cool answer to that other than gaining a mystical 2% extra performance in a best case scenario. You've been warned...
 

WarDaddy

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To elaborate on that...you're going to brick your laptop. If you brick the GPU you won't be able to boot, and you'll have no display(black screen). So you'll have no way to get into the BIOS to switch to onboard graphics. The GPU BIOS is integrated into the motherboard BIOS. Just because you're able to save it, doesn't mean you can edit it and/or flash it. You'll botch the whole works if you try without knowing exactly how to do it. It takes a very special procedure to do it correctly. I can't give you any insight into what it is(as I haven't a clue). And I don't know of anyone here that can.
Svet said that gpu bios is separated from the main one, and I flashed a gtx 880m a couple of times.
 
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Just flash it don't be a chicken.
 

WarDaddy

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Just found it funny that nobody ever mentioned what are those voltages.
 
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Just flash it don't be a chicken.

that can be part of that learning process . and you got to do it sooner or later to find out . best to use a cheap throw away but working hardware to practice on not goof a good hardware that may cost you more then the try was worth in the end ..lol...
 
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It's not advisable to flash a GPU BIOS on a mobile platform. You're gonna brick it, unless you know exactly what you're doing.

And yes, quite obviously 1.6V would be for GDDR5 memory.
Wrong, flashing mobile GPU's are especially easy, but being careful is a priorty
 

WarDaddy

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that can be part of that learning process . and you got to do it sooner or later to find out . best to use a cheap throw away but working hardware to practice on not goof a good hardware that may cost you more then the try was worth in the end ..lol...
I read many tutorials and none mentioned what the 1.6v slider were, just wanted to be sure that it wasn't a bug otherwise I would flash 1.6v and kill the card lol
 
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on that p0 states all I found on that was don't tuch or adjust most like here all seem to skip talking them up like here how that first part was left out

http://forum.notebookreview.com/threads/on-the-subject-of-maxwell-gpus-efficiency.773102/

''
That slider should not be touched and incorrect way to change just P0 state, another issue random people recommend to do that don't really understand what it does.

Changing just P0 includes one main voltage slider plus 2 other hidden voltages sliders that are not exposed in your screenshot.
You do not change the other slider in that pic ever. ''

https://forums.guru3d.com/threads/387-92-driver-error-43-caused-by-a-modified-vbios.417267/page-2

or like here no answer in 3 years
https://linustechtips.com/main/topic/285724-maxwell-bios-tweaker-help/

this s.ajin guy here does a lot of mods for folks he's on a few forums around see if he is a member at one you use and see if he will answer . if he tells ya he will tell you straight .

https://forums.geforce.com/default/topic/797098/geforce-drivers/occasional-stuttering-pause-/4/
 
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