DFI 975X/G need to reflash bios

check my sig to see my rig.

well to start things off I had the beta 8/30 BIOS for the X975, and then I flashed to the 9/13, i seemed to get higher OC's with the 8/30 so I flashed back to it using Winflash (which is what I always use), know this is where I think i messed up, when winflash asked me to reboot, I clicked yes, and then I shut it down my self and went to sleep. I didnt let it restart, so then the next morning I followed raja's guide and set all driver strengths to x3 and rebooted and it shut off as normal then it would not post when it started up again, so i cleared the CMOS ansd rebooted and I went into the BIOS to redo the settings and then it would not post again, this made me angry because I had it working before!! so I try just geting back into windows to flash back to 9/13 to see if that will work but my comp keeps on freezing or shutting off. now, i know that there is a way to flash with a floppy but how exactly do i get into DOS? like when it starts up? do i press on of the f buttons? or do i go into dos after I get into windows. I really dont want to get a new motherboard so can someone please help me

I just basically need to know how to get into DOS at the start up, also if I have to be in windows can I be n safe mode? because for some reason I am able to be in safe mode without any freezes.

In windows , put a floppy disk in the floppy drive. Right click on the Floppy drive Icon. Left click on format. Make sure make system disk is checked. When format is complete windows will transfer command.com plus *.sys files to the floppy which now make it boot-able. Copy the 975x bios ROM and a copy of award.exe flash and boot from the floppy. At the dos prompt type award.exe Look on DFI's web sight for an example of an autoexec.bat file which will aid you in a successful flash.

You can remove all unwanted files from the floppy to make room except: Command.com,
io.sys and dos.sys.