Acer MXM BIOS Mods and discussion (was: x920G vs. 9600M GT)

[.NetRolller 3D]

Thanks for the success report! Still not exactly a 9600M GT, but we are getting close.

If you are brave enough, you may try flashing a 9600M GT VBIOS into your GS, just to be extra sure, but I take no responsibility for that. :-) Not sure if that is even possible.

[FragZero]

I have tried a 9600M GT DDR2 bios in the past, works fine.

I see no reason why a 9600M GT DDR3 would not work, 2 cards (9500/9600m gs) which did not even post work flawless after this mod.

Hell i even tried a mxm he card and it worked

[mookill]

Acer 8920G with 9600GT DDR2 C1

sorry to report it didnt work.
have to put up with the blank screen until windows loads.

[.NetRolller 3D]

mookill: Which BIOS did you use?

EDIT: Also, please post the video BIOS of your card. I need to see how it is calling the MXM interrupt.

[raserdk]

just updated my bios with the one you modded,
acer aspire 5920g, and the bios works, it has another silent boot screen, my original was white with some green acer logo, this one has a black background instead, but i do not have a video card to test with
so if anyone is in denmark and are ready to lent out their card ill try it out

[triturbo]

I'll probably buy a 9600M GT from niffcreature, to test. If we make a deal and I end up with a card, I'll let you know, if someone else doesn't do it before me

[.NetRolller 3D]

If you do buy one, be sure to note which version (A1 or C1) and memory type (DDR2 or GDDR3 - AFAIK no other types exist for the GeForce 9000 series) you get.

[mookill]

mookill: Which BIOS did you use?

EDIT: Also, please post the video BIOS of your card. I need to see how it is calling the MXM interrupt.

used the BIOS you uploaded

attached dumb of 9600GT

[.NetRolller 3D]

Weird, this BIOS seems to be calling the MXM interrupt correctly.
Also, just verified using Phoenix BIOS Editor, the BIOS @ http://ifile.it/hg96pvw/V116_SLIC_MXM.ROM does contain the right MXM structure.

Do you see amy boot output if you plug in an external display?
Also, does a non-9600M GT card boot fine on your system?

If you can, please also try a different VGA BIOS.

[mookill]

no boot up output other than the usual BIOS screen.

I dont have any other cards atm.

havent got around to using a different BIOS - im still trying to figure out what p/c i can get on this.