Did you use a boot floppy type tool when going to flash the update? Asus sees the Afudos BIOS utility for a manual update by floppy. First you need a copy of the update on the root of the hard drive as well as on the floppy itself when going to flash.
The latest or last version of that tool can be downloaded from the update page for that model board at ASUSTeK Computer Inc.-Support-
For ordering a replacement eprom direct from Asustek you have to be experience at changing components on a board. They generally see a $25- price plus S&H when ordering a replacement and ask which version of the bios you want on it.
You may want to attempt a reflash to correct the one that went bad on you first however. Refer to the instructions for various model boards seen at ASUSTeK Computer Inc.-Support-
The following as suspected however requires you first clear the cmos when seeing a bad flash occur to see if the system will recover. Note the following:
Update BIOS failure
First, please try to clear CMOS and try if the problem could be solved. You can clear CMOS by changing the CLR_CMOS jumpers on your motherboard. The original position should be pin1-2, you need to configure it to pin2-3 for about 10 seconds, then reset to the original pins.
If you still cannot boot the PC, please contact your dealer and let him test the motherboard for you if the problem still exists. Please let him post the motherboard to our RMA we will test it and help you solve the problem..
Before flashing your BIOS, please check if the tools you are using are the latest version. Your problem may be caused by the version of your tool.
Else, you can save the BIOS file into a flash disk then boot the system and enter BIOS. Then you can update your BIOS by EZ Flash which is in the BIOS Tools page. After that, you can update the BIOS following the prompt of EZ Flash.
ASUSTeK Computer Inc.-Support-