Question about Jetway (939AGP-OC) Motherboard

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Jumper settings need jumper settings to reset cmos on a jetway motherboard

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See the picture here below.

jumper settings - cf82bb1.jpg

Posted on Oct 04, 2008

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How to reset BIOS... PS2 keyboard and mouse not working


The manual is here:
http://www.jetway.com.tw/jw/download_address.asp?downid=4269&proname=I31GM4&downtype=Manual-English&isbios=0

Normally you either remove or place a jumper on a pair of pins, wait 10 seconds and put the jumper back.

Oct 30, 2013 | Jetway I31GM4 Motherboard

1 Answer

Hi, I messed up my BIOS by trying to update it... I got an asus p4b533 and cant find how to do a CMOS reset. I read about shortening two bumps because this board obviously has no jumpers to reset CMOS....


Almost all motherboards contain a jumper that can clear all CMOS settings along with the BIOS password. The location of this jumper varies depending upon the motherboard brand. You should read your motherboard manual to check its location. If you don't have the manual then look for the jumpers near the CMOS battery. Most of the manufacturer label the jumper as CLR, CLEAR, CLEAR CMOS, etc.

When you find the jumper, look carefully. There will be 3 pins and the jumper will be joining the center pin to either left or right pin. What you need to do, is remove the jumper and join the center pin to the opposite pin. e.g. if the jumper joins center pin to left pin, then remove it and join center pin to right pin. Now wait for a few seconds and then again remove the jumper and join the center pin to left pin.

Make sure to turn the PC off before opening the cabinet and resetting the jumper


If you cannot access the machine after if has been powered up, it is still possible to get past the BIOS password. The BIOS password is stored in CMOS memory that is maintained while the PC is powered off by a small battery, which is attached to the motherboard.

If you remove this battery, all CMOS information (including the BIOS password) will be lost. You will need to re-enter the correct CMOS setup information to use the machine.


Hope this helps

Jan 16, 2011 | ASUS P4B533-VM Motherboard

2 Answers

"Reset you're cmos/bios jumper to


HI,
No need to worry. There are many known ways to reset / remove / bypass the password:
  • By removing the CMOS battery
  • By using the motherboard jumper
  • By using MS DOS command
  • By using software
  • By using Backdoor BIOS password
Now I'll try to explain each method one by one:
A. By Removing the CMOS Battery:
xrojer_2.jpg
Almost all motherboards use a small coin sized CMOS battery to store all BIOS settings along with the password. To reset the password, unplug the PC, open the cabinet and remove the CMOS battery for approx. 15-30 minutes and then put it back. It'll reset all BIOS settings as well as the password and you'll need to re-enter all settings.
If it fails, then try to remove the battery for at least one hour.

B. By Using the Motherboard Jumper:
Almost all motherboards contain a jumper that can clear all CMOS settings along with the BIOS password. The location of this jumper varies depending upon the motherboard brand. You should read your motherboard manual to check its location. If you don't have the manual then look for the jumpers near the CMOS battery. Most of the manufacturer label the jumper as CLR, CLEAR, CLEAR CMOS, etc.
When you find the jumper, look carefully. There will be 3 pins and the jumper will be joining the center pin to either left or right pin. What you need to do, is remove the jumper and join the center pin to the opposite pin. e.g. if the jumper joins center pin to left pin, then remove it and join center pin to right pin. Now wait for a few seconds and then again remove the jumper and join the center pin to left pin.
Make sure to turn the PC off before opening the cabinet and resetting the jumper.

C. By Using MS DOS Command:
This method works only if you have access to the system when its turned on because this method requires MS DOS. Open Command Prompt from Programs menu and provide following commands one bye one:
debug
o 70 2E
o 71 FF
quit
NOTE: The first character in the above commands is "O" and not the number 0.
After providing the above commands, restart your system and it should reset the CMOS Settings along with the BIOS password.
If you are curious to know how it works? then let me explain the above commands:
In this method we are using the Debug tool of MS DOS. The "O" character present at first in these commands, outputs the values to IO ports. The number 70 and 71 are port numbers which are used to access CMOS memory. By providing FF value we are telling CMOS that there is an invalid checksum and it resets the CMOS settings as well as BIOS password.

Jan 08, 2011 | Intel DG31PR Motherboard

2 Answers

Forget GA-6VTXE-A bios password.


To Reset the BIOS Password, Remove the CMOS (Coin-cell) Battery from the motherboard for five minutes and restart the system. This will load the factory default settings and the password would be gone.
GoodLuck!
Dont forget to appreciate the solution if I could have been of any help!
CreativeTECH

Dec 22, 2010 | Gigabyte GA-6VTXE-A Motherboard

1 Answer

Hi, am a technician.this motherboard is not takeing the memory.i tested with both sd &ddr1.is this any componet failure problem?reply


Hello,
Check CMOS beattery has life or not. Clear CMOS by jumper, try without CMOS battery, remove and replug PROCESSOR, Clean RAM slots throughly, check both +5 and +12V are available, if not try changing the Powersupply unit.
Good Luck!

Dec 21, 2010 | Jetway Pentium 4 P4MFP533T W/Integrared...

2 Answers

I need a pasword.when i enter the bois there need a pasword.so help me how 2 break the pasword


Hi Good day!! turn off your PC Remove your CMOS battery (2032 3volts) within 1minute and then put it back, turn on your PC now your bios password should be remove.

Oct 19, 2010 | MSI Microstar KT6 Delta (MS-6590)...

1 Answer

Removing bios password of toshiba portege 4010


HOPE THIS HELPS...BE SURE AND READ ALL BEFORE STARTING...GOOD LUCK

WARNING: Some BIOS configurations will lock you out of the system completely if you type in an incorrect password more than 3 times. Read your manufacturers documentation for the BIOS setting before you begin typing in passwords.
Award BIOS backdoor passwords:ALFAROME BIOSTAR KDD ZAAADA
ALLy CONCAT Lkwpeter ZBAAACA
aLLy CONDO LKWPETER ZJAAADC
aLLY Condo PINT 01322222
ALLY d8on pint 589589
aPAf djonet SER 589721
_award HLT SKY_FOX 595595
AWARD_SW J64 SYXZ 598598
AWARD?SW J256 syxz
AWARD SW J262 shift + syxz
AWARD PW j332 TTPTHA
AWKWARD j322
awkward

AMI BIOS Backdoor Passwords:AMI BIOS PASSWORD HEWITT RAND
AMI?SW AMI_SW LKWPETER CONDO

Phoenix BIOS Backdoor Passwords:phoenix PHOENIX CMOS BIOS

Misc. Common PasswordsALFAROME BIOSTAR biostar biosstar
CMOS cmos LKWPETER lkwpeter
setup SETUP Syxz Wodj

Other BIOS Passwords by ManufacturerManufacturer Password

VOBIS & IBM merlin
Dell Dell
Biostar Biostar
Compaq Compaq
Enox xo11nE
Epox central
Freetech Posterie
IWill iwill
Jetway spooml
Packard Bell bell9
QDI QDI
Siemens SKY_FOX
TMC BIGO
Toshiba Toshiba

Toshiba BIOS

Most Toshiba laptops and some desktop systems will bypass the BIOS password if the left shift key is held down during boot
IBM Aptiva BIOS

Press both mouse buttons repeatedly during the boot
Using the Motherboard "Clear CMOS" Jumper or Dipswitch settings

Many motherboards feature a set of jumpers or dipswitches that will clear the CMOS and wipe all of the custom settings including BIOS passwords. The locations of these jumpers / dipswitches will vary depending on the motherboard manufacturer and ideally you should always refer to the motherboard or computer manufacturers documentation. If the documentation is unavailable, the jumpers/dipswitches can sometimes be found along the edge of the motherboard, next to the CMOS battery, or near the processor. Some manufacturers may label the jumper / dipswitch CLEAR - CLEAR CMOS - CLR - CLRPWD - PASSWD - PASSWORD - PWD. On laptop computers, the dipswitches are usually found under the keyboard or within a compartment at the bottom of the laptop.

Please remember to unplug your PC and use a grounding strip before reaching into your PC and touching the motherboard. Once you locate and rest the jumper switches, turn the computer on and check if the password has been cleared. If it has, turn the computer off and return the jumpers or dipswitches to its original position.
Removing the CMOS Battery

The CMOS settings on most systems are buffered by a small battery that is attached to the motherboard. (It looks like a small watch battery). If you unplug the PC and remove the battery for 10-15 minutes, the CMOS may reset itself and the password should be blank. (Along with any other machine specific settings, so be sure you are familiar with manually reconfiguring the BIOS settings before you do this.) Some manufacturers backup the power to the CMOS chipset by using a capacitor, so if your first attempt fails, leave the battery out (with the system unplugged) for at least 24 hours. Some batteries are actually soldered onto the motherboard making this task more difficult. Unsoldering the battery incorrectly may damage your motherboard and other components, so please don't attempt this if you are inexperienced. Another option may be to remove the CMOS chip from the motherboard for a period of time.

Note: Removing the battery to reset the CMOS will not work for all PC's, and almost all of the newer laptops store their BIOS passwords in a manner which does not require continuous power, so removing the CMOS battery may not work at all. IBM Thinkpad laptops lock the hard drive as well as the BIOS when the supervisor password is set. If you reset the BIOS password, but cannot reset the hard drive password, you may not be able to access the drive and it will remain locked, even if you place it in a new laptop. IBM Thinkpads have special jumper switches on the motherboard, and these should be used to reset the system.

Oct 16, 2010 | Toshiba Motherboards

2 Answers

How can I reset the BIOS


You can reset bios with 2 methods.
(1) Pull CMOS cell from motherbord for 10 minutes.
Then power up the computer 2 times.
Then all settings are defaults.
Then reseat the cell.

(2)You can RESET all settings with jumper settings.
Find jumper on mothebord named "Clear Cmos" It has 3 pins 1-2-3
Set jumper in 2-3 position then power up the computer then again put jumper in 1-2 position then all settings of bios are RESET.
Let me know if you need further assistance.
Thanks for using FixYa.

Nov 24, 2009 | Gigabyte 7VM333M-RZ (GA-7VM333M-RZ)...

2 Answers

Jetway 939 gt motherboard install


What install disk are you talking about, and sorry ,need to know the error too.

Nov 18, 2007 | Jetway 939GT4-SLI-G Motherboard

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