can a bad floppy drive prevent your pc from booting or even posting, im upgrading a system and i cant even post up, its the last possibility, i dont have another one to try.
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You dont need a floppy drive for you computer to function (unless its 1984), just unplug it and see if your pc posts. I dont think it could do anything to hinder your pc from booting, but stranger things have happened.
I cannot think of a reason why a bad flopy drive would interfere with bootup. Have you tried just disconnecting the drive to see what happens?