Bios Entry Keys combos !! Acer - CTL ALT ESC AMI BIOS - DEL, F1 or F2 AST, Advantage, Award, Tandon - CTL ALT ESC Award BIOS - DEL or CTL ALT ESC Compaq - F10 DELL - F1 or DEL or CTL ALT ENTER DTK BIOS - Esc Gateway 2000 - F1 Hewlett Packard - F1 IBM Older Models - In order to get into the configuration of the IBM setup screen CMOS screen you need to hold down both mouse buttons during bootup. Aptiva - F1 PS/2 - CTL ALT INS after CTL ALT DEL PS/2 with reference partition - INS NEC - F2 Olivetti PC Pro - SHIFT CTL ALT Numpad DEL Packard Bell - F1 or F2 Phoenix BIOS F1 or F2, or CTL ALT ESC or CTL ALT S or CTL S or CTL ALT INS Sharp Laptop 9020 - F2 Sony - F3 at switchon, then F2 or F1 Tandon - CTL SHIFT ESC Toshiba - ESC at switchon Zenith - CTL ALT INS Miscellaneous - CTL ESC or CTL ALT +