I have a Dell XPS 430 desktop, with X01 version of BIOS, SLIC 2.0... seems this is an engineering version and it could not be upgraded to A00 or A01 I tried the modified A01 BIOS downloaded from here, but it told me that the product ID not matched...both failed in Windows and DOS And I tried to modify the HDR file by myself, by I could not find an original X01 version. I am wondering, whether I can modify the A01 version to match the X01 product, but I don't really know which part I need to modify. e.g., modify the A01 in the HDR file to X01? Please please help.... thanks a lot