Not sure if this is the problem but it's something to check. BIOS is showing your 40GB HDD (IDE Primary at position 0) so, on the back of your IDE HDD is a jumper with three positions (slave, master, auto), it should be in the master postition. Recheck all your connections while you have the unit open.
Hope it helps
IT HELPED!! AND PULLING CMOS AND ADDING POWER; IT RESET BIOS AND READY TO GO