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- work in progress - Instructions for flashing the VBIOS of an AMD / ATI video card: You'll need: A VBIOS file you want to flash The latest version of ATIflash, a DOS utility to flash the VBIOS A USB drive, formatted to boot DOS, in order to use ATIflash How to create a bootable USB flash drive: Flashing procedure: Once you've prepared your USB drive, put ATIflash to the root of the drive, same with the VBIOS file you want to flash. NOTE:DOS has a limit of 8 characters per file name (not counting the extension). So make sure to rename your files appropriately before putting them on the USB drive. Reboot your system, go to the boot manager and choose to boot from the USB drive. As soon as you see the command line you're ready to go, write dir and hit enter to display all the files on the USB drive. Display all adapters, ATIflash will enumerate them. Remember the numbers of the devices you want to flash. atiflash -i Save a copy of your original VBIOS to the USB drive, "i" is the number of the adapter you checked before, if you only have one GPU it's going to be "0". "Filename" is going to be the name of the file, don't forget to add an extension (.rom). Keep in mind that there's a limit of 8 characters for a file name in DOS. atiflash -s i filename.rom Verify the integrity of the VBIOS you want to flash by calculating its checksum. Of course you need to know the correct checksum in advance. If the checksums don't match -> don't flash. atiflash -cf vbiosfile For example if the file you want to flash is called "modVbios.rom" the command for displaying the checksum would be "atiflash -cf modVbios.rom". Flash your VBIOS to the desired adapter "i". atiflash -p i vbiosfile E.g. "atiflash -p 0 modVbios.rom" flashes the file modVbios.rom to adapter 0. DON'T do anything with the system during the flash procedure. Restart the system when asked to do so and remove your USB drive. Pro tip: Using ATIflash: This will display a list of all valid atiflash commands, the associated parameters and explanations about how to use them: atiflash -h

No such option in the M15x BIOS. And it was about 350mV As I already tried to explain twice... there's no such thing as a power input limitation. Else I wouldn't have been able to crank up my CPU 30x multi on all cores and more. Such overclocks easily use more than 150W on the CPU alone, plus the rest of the system needs power as well. The only limitation seems to be in the power supply circuits which provide the voltage for the GPU. Nothing you can do about, unless you get the schematics of the mobo and try to figure out a solution. The 240W PSU works, but it's not really a benefit due to the GPU limitations. The stock PSU can easily handle about 180W, my stock M15x adapter trips when it draws about 195-200W.