Pengertian dan Tutorial Tentang Bios


BIOS, singkatan dari Basic Input Output System, dalam sistem komputer IBM PC atau kompatibelnya (komputer yang berbasis keluarga prosesor Intel x86) merujuk kepada kumpulan rutin perangkat lunak yang mampu melakukan hal-hal berikut:
  1. Inisialisasi (penyalaan) serta pengujian terhadap perangkat keras (dalam proses yang disebut dengan Power On Self Test, POST)
  2. Memuat dan menjalankan sistem operasi
  3. Mengatur beberapa konfigurasi dasar dalam komputer (tanggal, waktu, konfigurasi media penyimpanan, konfigurasi proses booting, kinerja, serta kestabilan komputer)
  4. Membantu sistem operasi dan aplikasi dalam proses pengaturan perangkat keras dengan menggunakan BIOS Runtime Services.
BIOS menyediakan antarmuka komunikasi tingkat rendah, dan dapat mengendalikan banyak jenis perangkat keras (seperti keyboard). Karena kedekatannya dengan perangkat keras, BIOS umumnya dibuat dengan menggunakan bahasa rakitan (assembly) yang digunakan oleh mesin yang bersangkutan.

Tutorial tentang Bios
BIOS Passwords the Entry to your BIOS
BIOS-Setup-Password_via_Software
BIOS_Masterpasswords
Killing_the_BIOS-Boot_Password
Killing_the_BIOS-Setup_Password
Keystrokes to Enter the BIOS-Setup

BIOS-Setup-Password via Software

You can download the free, small program ctbios15.zip from the german Computermagazine c't. Ctbios shows the password and some other interesting things about your BIOS. (great tip !)

BIOS-Masterpasswords

Lost your BIOS-Password ? Try one of the following Masterpasswords:
AWARD Masterpasswords
01322222 bios lkw peter
1EAAh BIOS lkwpeter
256256 biostar PASSWORD
589589 biosstar SER
589721 CONCAT setup
?award CONDO SKY_FOX
admin condo SWITCHES_SW
alfarome djonet Sxyz
aLLy efmukl SZYX
aPAf g6PJ t0ch88
award h6BB t0ch20x
award_? HELGA-S ttptha
award.sw HEWITT RAND TTPTHA
AWARD SW HLT TzqF
AWARD_SW j09F wodj
AWARD_PW j256 ZAAADA
award_ps j262 zbaaaca
AWARD?SW j322 zjaaadc
awkward j64 zjaaade



AMI Masterpasswords
ami amiami CMOSPWD
amidecod AMI.KEY KILLCMOS
amipswd AMISETUP 589589
AMIPSWD AMI?SW ami.kez
AMI AMI!SW ami°
A.M.I. AMI_SW helgasss
aammii bios310 HEWITT RAND
AMI~ BIOSPASS


Masterpasswords from different Manufacturers
Advance Integration: Advance
Amptron: Polrty
AST: SnuFG5
Biostar: Biostar / Q54arwms
Compaq:compaq
Concord: last
CTX International: CTX_123
CyberMax: Congress
Daytek+Daewoo:Daytec/Daewuu
DELL: DELL
Digital Equipment: komprie
Enox: xo11nE
Epox: central
Freetech: Posterie
HP Vectra Serie: hewlpack
IBM: IBM / MBIUO / sertafu
IBMAptiva: press both mousekeys
Iwill: iwill
Jet Way: spoom1
Joss Techn.: 57gbz6 / Technolgi
MachSpeed: sp99dd
Magic-Pro: prost
Megastar: Star
Micron: sldkj754 / xyzall
Micronics: dn_04rjc
M Technology: mMmM
Nimble: xdfk9874t3
Packard Bell: Bell9
QDI: QDI
Quantex: teX1 / xljlbj
Research: Col2ogro2
Shuttle: Spacve
Siemens Nixdorf: SKY_FOX
Speedeasy: lesarot1
SuperMicro: ksdjfg934t
Tiny: Tiny
TMC: BIGO
Toshiba:24Banc81/Toshiba/toshy99
ToshibaLaptops: press left Shiftkey
Vextrec Technology: Vextrec
Vobis: merlin
WIMBIOS v2.10: Compleri
Zenith: 3098z / Zenith
Zeos: zeosx

Killing_the_BIOS-Boot_Password
If you have forgotten your BIOS Boot-Password, have a look into your mainboard manual, or after opening your PC, onto your mainboard. Many mainboards have a JUMPER or SWITCH to clear the CMOS. This Jumper is often named like: "RTC_CLEAR" , "CLEAR CMOS" , "CLRCMOS" , "CLRCMS". His position is often near by the mainboard battery.
Attention: All hardware settings (harddisk-, bootsequence,-...settings) will be deleted ! At least, you have to re-insert them again.
If no Jumper exists, you can try to remove the Battery and wait some time before you insert it back into the Mainboard. (some time means: ~ 1-5 minutes, 24 hours or up to 1 year (!) ). Another way is to "short circuit" the contacts of the replaced Battery, but if there are some Diodes behind the contacts, they don't allow it ;-)

Killing the BIOS-Setup BIOS- Password
If you can't enter the Setup of your BIOS, you need a DOS-Bootdisk and one of the following MS-DOS Files:
Filename Sourcecode I Sourcecode II
DEBUG.EXE - o 70 2E
- o 71 FF
- Q - o 70 17
- o 71 17
- Q
QBASIC.EXE
- 10 OUT &H70,17
- 20 OUT &H71,0
- 10 OUT &H70,&H17
- 20 OUT &H71,&H17

Keystrokes to Enter the BIOS-Setup
Sometimes you don't know the keystrokes to enter the BIOS-Setup:
Keystrokes Mainboard manufacturer
Del AMI, AWARD
ESC Toshiba
F1 Toshiba, Phoenix and later models from Late model PS/1 Value Point and 330s
F2 NEC, Dell
F10 Compaq
Ins IBM PS/2s
twice Reset Dell
Alt+Return Dell
Alt+"?" some PS/2-Models
Ctrl+Esc General
Ctrl+Ins some PS/2-Models
Ctrl+Alt+Esc AST Advantage, Award, Tandon
Ctrl+Alt+"+" General
Ctrl+Alt+S Phoenix
Ctrl+Alt+Ins Zenith, Phoenix
Ctrl+S Phoenix
Ctrl+Shift+Esc Tandon 386er
Ctrl+Shift+Alt +Del(num.Keypad) Olivetti PC Pro
Setupdisk Compaq, Epson, IBM, Toshiba, 286er

Semoga bermanfaat :D
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