Pour entre dans le bios d'un PC standard, pressez les touches suivantes pendant la phase de boot :
Hold down the < Del> key (AMI and Award)
Hold down the < F1> key
Hold down the < F10> key
To enter the BIOS from a DOS prompt...( ...NOT from inside windows)
< Alt>< Cntrl> < Esc>
< Alt>< Cntrl> < Enter>
< Cntrl> < Alt>
< Cntrl> < Alt> < S>

Quelques fabricants possèdent leur propre combinaison de touches pour entrer dans le Bios :
Acer - Ctrl+Alt+Esc
AST, Advantage, Award, Tandon - Ctrl + Alt + Esc
Compaq - F10 (When the square is in the top right hand corner of
screen)
Dell - F1 ou Del.
Dells - Some require pressing reset twice
Dells - Ctrl + Alt + Enter
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 boot-up.
Aptiva - Press F1
IBM PS/2 with reference partition - Press Ins during boot
Some PS/2s, such as 75 and 90 - Ctrl Alt ?
Some PS/2s when pointer at top right of screen - Ctrl + Ins
Leading Edge
Fortiva 5000 - < Cntrl> < Alt> < A> or < Cntrl> < Alt> < S>
NEC - F2
Packard Bell - F1 or F2
Phoenix - Ctrl Alt S
Phoenix - Ctrl S
Phoenix - Ctrl Alt Ins
Sharp Laptop 9020 - F2
Sony - F3, then F2, or F1
Tandon computers - Hold down the key after turning on power
Tandon - Ctrl + Shift + Esc
Toshiba Laptops - Toshiba Utility
Toshiba - Press Esc during boot
Toshiba, Phoenix, late model PS/1 Value Point and 330s - Press F1
during boot
Olivetti PC Pro - Shift Ctrl Alt + Num Pad del
Miscellaneous PC's - Ctrl + Esc or Ctrl and Alt and +
Zenith - Ctrl Alt Ins

Another list:
Depends on your PC model and BIOS version:
Press Delete during boot = AMI, Award BIOS
Press Esc during boot = Toshiba
Press F1 during boot = Toshiba; Phoenix; Late model PS/1 Value Point
and 330s
Press F10 when cursor junps to top right-hand corner of screen =
Compaq
Pressez F10 when logo screen is displayed = Compaq
Pressez F2 during boot = NEC
Pressez Insert during boot = IBM PS/2 with reference partition
Pressez Tab during boot = Emachine
Pressez reset button twice = some Dells
Pressez Ctrl Alt + = Misc computers
Pressez Ctrl Alt ? = Some PS/2s, such as 75 and 90
Pressez Ctrl Alt Enter = Dell
Pressez Ctrl Alt Esc = AST Advantage, Award, Tandon
Pressez Ctrl Alt Ins = Zenith, Phoenix
Pressez Ctrl Alt S = Phoenix
Pressez Ctrl Alt Shift + Num Pad Del = Olivetti PC Pro
Pressez Ctrl Esc = Misc computers
Pressez Ctrl Ins = some PS/2s when pointer at top right of screen
Pressez Ctrl S = Phoenix
Pressez Ctrl Shift Esc = Tandon 386