MyBad2020

On 5/13/2015 at 11:55 AM, code9523 said:

Hello everybody!

I want to share with you my experience in upgrade Asus G750 series laptops.

I owned G750JX laptop with a GTX770m gpu I always was thinking about upgrade gpu from gtx770m to gtx780m but there where several facts which stops me.

1. Compatibility of parts from different laptops.

2. Cost of rebuild.

But I found a donor laptop which was Asus G750JH after water damage and started building! Fortunately gpu wasn't damaged and was in perfect condition. I toke 2 laptops apart and swapped my working motherboard and keyboard module from G750JX to G750JH and turned it on. It logged in bios without any complications so I decide to assemble everything together and booted to windows.

Everything was working. Except one thing in windows device manager gpu was detected as Standard Microsoft Video Adaptor. The only program which recognized it was Aida64. So I started searching for solution.

1. The easy way is to modify drivers. (I haven't done it myself)

2. To flash bios from G750JH board.

I choose the second way. I asked my friend to make a mod for me to flash the G750JH bios to G750JX board. Because when I was trying to flash original rom from JH to JX I was getting errors like "wrong model" "size not matching" "version of bios is to old" etc. But mod was flashed using afudos without any problems. Exception was that my keyboard lights gone. So I decided to flash original mod after all using asus winflash. And everything works fine! No errors no bsods. Just works as it should! Now my board in bios is recognized as G750JH board also gpu in device manager is recognized as GTX780m and everything works fine!

When building I found out that both mother boards are identical also I found marks that they are Asus G750JW REV 2.1 even bios chips are same but they have another firmware on them.

Also I know that traveling from Asus G750JW to G750JX motherboard is possible just by replacing gpu. Everything else like cooling etc will feet on it's place like it should.

I instructed a guy from ROG forum and he also successfully upgraded gpu in G750JX to G750JH but now he is running in stock G750JX body with cooling system from G750JS.

So in cases I described upgrade for G750 series is possible! I'm now thinking about going further and upgrade to GTX980m from G750JY as body parts are same and it should feet inside.

P.S. All you do you are doing at your own risk!

Some pictures and video is coming soon =)

hei bro.. i have rog g750jw with gtx 765m and i want to increase it to 780m, is it possible? and what mod bios need? if you need bios mod, can you help me to modding my bios?