I do not have your answer. However, I have a question. I also have a Gateway 700X desktop. I am trying to find a BIOS update, because the BIOS cannot recognize hard drive capacity larger than 128GB. Do you know where to get an up-to-date BIOS for the 700X? I have BIOS version MV85010A.15A.0049.P07. It doesn’t look like Gateway is offering the BIOS updates anymore…?
Ok, now see below. There is a solution. You have to make the floppy disk a DOS boot floppy. The BIOS update instructions leave this important fact out.