Solve : Boot sequence = bootable add in cards #1 = bootmgr not found.?

1.	Solve : Boot sequence = bootable add in cards #1 = bootmgr not found.?
Answer» When I set BOOTABLE add in cards to boot before the hard DRIVE I get a message " BOOTMGR not found" press ctl-alt-delete to restart. Why? This is on my core2 quad system in my specs.What all qualify's as a "Bootable Add In Card"? CD DVD, floppy...?I thought it would go through the boot sequence until it finds a bootable source. I don't KNOW why it's stopping at bootable add in cards instead of going to the next DEVICE in the sequence, (hard drives).

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