trying to modify acer 5536G bios

[AHMED HOSSAM]

HI, I have acer 5536G and it`s running so hot ( 90 c ) and i found that there is option called thermal control that turns of the fan and decrease it`s speed to 30% when not at load.........this option is not shown at the bios menu so i get the acer 5536G 1.11 bios from acer web site and tried opening the rom file with phoenix bios editor 2.2.1.3pro but there are messages telling me ( an unsupported module class H was found in file _H00, do you want to continue ) and the one telling me class Q and other class K and i pressed yes and modified the file and saved it and converted it to .wph using hex editor ..........but when i try to flash the new file using phlash16 from dos it stopped when backing up bios telling me some modules was not found...............................i tried only converting .rom to .wph using hex editor but without editing .rom file using phoenix editor and it was flashed properly without any problems........so the problem is that phoenix editor builds the rom file with errors.........so i was asking if there are any other methods to edit my bios....... here is the link to acer 5536G version 1.11 bios http://us.acer.com/ac/en/US/content/drivers

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please note that i only modified thermal control in the rom file which i found in the amd menu in the setup table but i don`t knew why this menue is shown in the table but hidden in the bios screen........................and also note that i only put the platform information to the rom file using hex editor by copying it from the wph file to the rom and finally there are excactly the same size and phlash16 can open it......but it gives error when backing up bios