American megatrends reserves the right to update. American megatrends ami, formerly american megatrends, inc, is an international hardware and software company, specializing in pc hardware and firmware. Is there any method to remove this unwanted bios write protection? I only see 2 jumpers on the board - one is cmos clear the other I have not found any info and it is not marked on pcb.Ģ. American megatrends series 493 rev-c1 driver download this laptop is equipped with inch screen. So seems somehow the ver 6.10a flash has turned on bios write protection and I am unable to flash any bios now!.ġ. However trying to flash this with either the sp48295.exe via windows or AFUDOS fails with error message "BIOS is write protected". " message in centre which never progresses (could stiil boot into windows 7 ok though).ĭecided I should revert to ver 5.13A (which worked correctly). On booting system it was obvious all was not well -( Pressing F10 to try an get into bios setting just produced a screen with "Wait. I then added the /x switch to override ROM id check and rom was flashed. i have cpu hp 280 g1 mt with intel board i update bios and successfully updated and after restart system is no display and bios got currept any solution please Forum - BIOS Modding Guides and Problems HP 280 G1 MT bios update failed. On first attempt (AFUDOS switches /p /b /c) I got the invalid ROM id error message. The important thing to note here is to do the upgrades. This worked ok.Įncouraged I then tried the Ver 6.10a modded bios as per post #1 using AFUDOS 4.33 on usb stick method. Next I tried the ver 5.13A sp48295.exe update for Compaq 500B MT from HP support site (straight run from windows). This failed with invalid ROM id error message. The original bios version was 5.09 27/11/09 Core ver 08.00.15 Compa 500B Microtowerįirstly I tried the ver 6.05 sp50200.exe update for HP 500B MT from HP support site (straight run from windows).
#AMERICAN MEGATRENDS BIOS UPDATE HP 500B MT MOD#
I had an old H-IG4-uatx board in Compaq/HP 500B and thought I would try this bios mod with a view to trying a better cpu in it (current cpu is Celeron E3200).