This list of BIOS access keyboard commands

Acer

Apire, Power, Veriton, Extensa, Ferrari, TravelMate, Altos

bullet Press Del or F2 immediately after powering on.
bullet The Acer Veriton L480G uses F12.
bullet The BIOS on the Acer Altos 600 server uses the Ctrl+Alt+Esc key and the F1 key for advanced options.
bullet Older Acer computers may use also use the F1 or Ctrl+Alt+Esc keys to access BIOS.

Compaq

Presario, Prolinea, Deskpro, Systempro, Portable

bullet Press F10 while the cursor in the top right corner of the screen is blinking.
bullet Older Compaq computers may use the F1, F2, F10, or Del key to give access to BIOS.

Dell

XPS, Dimension, Inspiron, Latitude. OptiPlex, Precision, Vostro

bullet Press F12 or F2 when the Dell logo appears. Press every few seconds until the messageEntering Setup appears.
bullet Older Dell desktops and laptops may instead use Ctrl+Alt+Enter or Del to enter BIOS.
bullet Older Dell laptops may use Fn+Esc or Fn+F1.

eMachines

eMonster, eTower, eOne, S-Series, T-Series

bullet Press Tab or Del while the eMachine logo displays on screen.
bullet Other eMachine computers may use F2 to enter BIOS.

Fujitsu

LifeBook, Esprimo, Amilo, Tablet, DeskPower

bullet Press F2 once the Fujitsu logo appears.

Gateway

DX, FX, One, GM, GT, GX, Profile, Astro

bullet Press the F1 key repeatedly after restarting the computer.
bullet Some older Gateway computers use F2 to access the BIOS Setup utility.

Hewlett-Packard (HP)

Pavilion, TouchSmart, Vectra, OmniBook, Tablet

bullet Press the F1, F10, or F11 key after restarting the computer.
bullet HP Tablet PCs may use F10 or F12.
bullet Other HP computers may allow access to BIOS using the F2 or Esc keys.

IBM

PC, XT, AT

bullet Press F1 immediately after powering on the computer.
bullet Older IBM computers (including some laptops) may utilize the F2 key for BIOS entry.

Lenovo (formerly IBM)

ThinkPad, IdeaPad, 3000 Series, ThinkCentre, ThinkStation

bullet Press F1 or F2 after powering on the computer.
bullet Older Lenovo products allow access to BIOS using Ctrl+Alt+F3, Ctrl+Alt+Ins, or Fn+F1.

Micron (MPC Computers)

ClientPro, TransPort

bullet Press F1, F2 or Del immediately after powering on the PC.

NEC

PowerMate, Versa, W-Series

bullet Press F2 to enter the BIOS Setup.

Packard Bell

8900 Series, 9000 Series, Pulsar, Platinum, EasyNote, imedia, iextreme

bullet Press F1, F2, or Del to enter BIOS.

Samsung

Series 'x' laptops

bullet Press F2 to start the BIOS setup utility.

Sharp

Notebook Laptops, Actius UltraLite

bullet Press F2 after the computer starts.
bullet Some very old Sharp PCs require a Setup Diagnostics Disk to access BIOS.

Shuttle

Glamor G-Series, D'vo, Prima P2-Series, Workstation, X Mini XPC, Surveillance

bullet Press F2 or Del on startup.

Sony

VAIO, PCG-Series, VGN-Series

bullet Press F1, F2 or F3 after turning on the computer.

Toshiba

Portégé, Satellite, Tecra, Equium

bullet Press F1 or Esc after powering on to access BIOS.
bullet Press F12 on a Toshiba Equium.