This only works IF your motherboard BIOS supports it. You may be able to FLASH your BIOS and upgrade to this functionality. Easy way to find out, go into BIOS and look for Boot Order or Boot device and see if USB Device is an option. If so, make it FIRST, CDROM 2d and HDD last (so you don't have to do this again) Save and exit. Then go here and grab the instr: http://www.bootdisk.com/pendrive.htm
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This only works IF your motherboard BIOS supports it. You may be able to FLASH your BIOS and upgrade to this functionality. Easy way to find out, go into BIOS and look for Boot Order or Boot device and see if USB Device is an option. If so, make it FIRST, CDROM 2d and HDD last (so you don't have to do this again) Save and exit.
Then go here and grab the instr: http://www.bootdisk.com/pendrive.htm