build a pc out of old hardware. Trying to boot from a startup floppy so I can fdisk, but I can't get it to boot from any disk. The floppy will read for ~7 seconds but then will stop and the PC will try to boot from the next device. there is no option to turn boot from other device off or have it boot from only floppy. I have tried 2 different drives, including one I know works fine. I will try a different cable see if that works.