The problem is when booting process gets on its not able process inside bios while entering F1, F9, F10, F12 . It directly goes to SCSI Seletion ... Can any one say how get into Bios before SCSI processn .
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Welcome! Most computers del(ete) key!
try F2 (most of the PC's at work Dell/HP), other than that like rolli said try the Delete key.