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[Guide] Broadwell HD5500 Setting DVMT in InsydeH20 BIOS Laptops

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RehabMan

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Just clarifying. I am not using the minStolenSize patch on 10.12.1 . Mac shows "VRAM (Dynamic, Max): 1536 MB". QE/CI works. Windows shows 128 MB Dedicated Video Memory.

This means, I do not need to patch my BIOS, right?

Windows indication is not relevant/not reliable... ignore.
If you can run the drivers without changing the DVMT-prealloc setting, then you don't need the patch, nor do you need to change it. Sort of a "don't fix what ain't broken" sort of thing.
 
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He is lucky enough to have a correct factory setting Bios
 
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My 2 cents correction to Lenovo Yoga 500 15IBD. Use other method to unlock hidden bios tabs and set all dvmt to max.
IMG_20170117_204742.jpg
 
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My 2 cents correction to Lenovo Yoga 500 15IBD. Use other method to unlock hidden bios tabs and set all dvmt to max.View attachment 230843

Hello asusceleron

How Did you do it? I want to know how do it because I got a Lenovo Z70-80 and I can install mac on it but video graphics is impossible to set it.

Please. Tell me your method.
 
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I have some problems here some help would be nice .
Alienware 15 r1 2015 , I cannot find the Rom file , cause I have diffrent laptop than what the guide is for , and I have ROM's from 2.5 mb to 535kb .
Another problem is that I cannot open the Any ROm file using the Universal IFR extractor , I get "unknown protocol" error . Can someone please help ?
Thanx !
Edit . got it !
 
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I have some Issues here .
1. Cannot extract the Bios exe to get .fn file . There is no extract here neither forcing it to winrar does nothing .
2. Adding the exe into the phoenix tool does give me normal steps as with ".fn " file , I managed to extract the info regarding DVMT vallues , and when changing them I get the error there is in the pic .
What am I doing wrong ? Can someone help me extract the value correctly ?
I post here the Bios that is on my pc installed currently , In case someone wants to give it a go see if "extracts " etc .
Thank you in advance !
 

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Here is a picture with what I found as information the way I done it .
 

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Windows indication is not relevant/not reliable... ignore.
If you can run the drivers without changing the DVMT-prealloc setting, then you don't need the patch, nor do you need to change it. Sort of a "don't fix what ain't broken" sort of thing.

My Kaby Lake laptop (HP envy 15-as110TU) works in 10.12.3 without minStolenSize patch, too.
Is there a way to know the current DVMT-preallc setting? Windows shows 128M.
When I open the extracted IFR.txt file, I haven't found any "DVMT" or "64M".

My display is now working on eDP: 3840x2160@40Hz , not 60Hz.
So I guess that if my default DVMT-preallc was 64M. Perhaps it can work on 60Hz after setting to 128M.
Any advise? thx.
 

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