Dell and resetting BIOS

People who know me, know that I don't like hardware! I was working on a client's computer (older Dell 8200) yesterday that wouldn't boot up. I went ahead and put in a different hard drive. But every time I would boot it up, it would display the "Primary Hard Drive 1 Not Found". I would go into BIOS, and it would show the drive. And if I pressed F1 from the error, the computer would go ahead and boot up. I messed around with the BIOS settings enought, that ultimately it was not booting at all, but coming up with a "Strike f1 to retry boot, f2 to enter system utility". After some stumbling around, I found the following recommendation for resetting the BIOS and getting past such problematic warnings and errors: When the F1 or F2 screen come up, make sure that: 1) CAPS LOCK LIGHT IS ON 2) NUMBERS LOCK LIGHT IS ON 3) SCROLL LOCK LIGHT IS ONALL 3 LIGHTS ON KEYBOARD MUST BE ON... Then you press: 1) (ALT TAB) E 2) (ALT TAB) F 3) (ALT TAB) B The c