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Re: reset the bios
You need to press del or f2 or esc when the computer first starts up down the bottom of screen it should tell you how to enter BIOS or one of the keys above may work when in BIOS check which key to press to set to default.once default loaded reboot from there you can enter BIOS and set to your needs
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In desktop machines its very simple.
Just remove the BIOS Battery from the motherboard and place it back after 1mint.
It is some what difficult in laptop machines. Because it is not an eassy job to remove BIOS battery from the mother board. So i'm just explaining some most commen methods.
1. Using a Backdoor BIOS Password
The backdoor password is a BIOS password that works, no matter what the user sets the BIOS password to. These passwords are typically used for testing and maintenance. Manufacturers typically change the backdoor BIOS passwords from time to time.
AMI Backdoor BIOS PasswordsReported AMI backdoor BIOS passwords include A.M.I., AAAMMMIII, AMI?SW , AMI_SW, BIOS, CONDO, HEWITT RAND, LKWPETER, MI, and PASSWORD. Award Backdoor BIOS PasswordsOne reported Award backdoor BIOS password is eight spaces. Other reported Award backdoor BIOS passwords include 01322222, 589589, 589721, 595595, 598598 , ALFAROME, ALLY, ALLy, aLLY, aLLy, aPAf, award, AWARD PW, AWARD SW, AWARD?SW, AWARD_PW, AWARD_SW, AWKWARD, awkward, BIOSTAR, CONCAT, CONDO, Condo, condo, d8on, djonet, HLT, J256, J262, j262, j322, j332, J64, KDD, LKWPETER, Lkwpeter, PINT, pint, SER, SKY_FOX, SYXZ, syxz, TTPTHA, ZAAAADA, ZAAADA, ZBAAACA, and ZJAAADC. Phoenix Backdoor BIOS PasswordsReported Phoenix BIOS backdoor passwords include BIOS, CMOS, phoenix, and PHOENIX. Backdoor BIOS Passwords from Other ManufacturersReported BIOS backdoor passwords for other manufacturers include: ManufacturerBIOS PasswordVOBIS & IBMmerlinDellDellBiostarBiostarCompaqCompaqEnoxxo11nEEpoxcentralFreetechPosterieIWilliwillJetwayspoomlPackard Bellbell9QDIQDISiemensSKY_FOXSOYOSY_MBTMCBIGOToshibaToshibaRemember that what you see listed may not be the actual backdoor BIOS password, this BIOS password may simply have the same checksum as the real backdoor BIOS password. For Award BIOS, this checksum is stored at F000:EC60.
2. Resetting the BIOS Password using Software :
!BIOS will recover the BIOS password for most common BIOS versions, including IBM, American Megatrends Inc, Award and Phoenix.
CmosPwd will recover the BIOS password for the following BIOS versions:
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. The machines owner or user will most likely be alarmed when it is discovered that the BIOS password has been deleted. On some motherboards, the battery is soldered to the motherboard, making it difficult to remove. If this is the case, you have another alternative. Somewhere on the motherboard you should find a jumper that will clear the BIOS password. If you have the motherboard documentation, you will know where that jumper is. If not, the jumper may be labeled on the motherboard. If you are not fortunate enough for either of these to be the case, you may be able to guess which jumper is the correct jumper. This jumper is usually standing alone near the battery. If you cannot locate this jumper, you might short both of the points where the battery connects to the motherboard. If all else fails, you may have to clear the BIOS password by resetting the RTC (Real Time Clock) IC (Integrated Circuit) on your motherboard. Many RTC's require an external battery. If your RTC is one of this type, you can clear the BIOS password just by unsocketing the RTC and reseating it.
4. Vendor Specific Solutions for Resetting the BIOS Password : Resetting a Dell BIOS PasswordFor information on how to recover a Dell BIOS password, please refer to How do I reset Dell BIOS password? Resetting a Toshiba BIOS PasswordKeyDisk will reset the BIOS password on Toshiba laptops.
Some Toshiba's can be convinced to bypass the startup BIOS password if you hold down the <LEFT-SHIFT> key while booting the system. Resetting an IBM ThinkPad BIOS PasswordFor information on how to recover an IBM Thinkpad BIOS password, please refer to How do I reset an IBM ThinkPad BIOS password? Resetting an IBM Aptiva BIOS PasswordSome IBM Aptiva's can be convinced to bypass the startup BIOS password if you press both mouse buttons repeatedly while booting the system. Resetting an Acer BIOS PasswordFor information on how to recover an Acer BIOS password, please refer to How do I reset an Acer BIOS password?
reset the BIOS back to the default settings and you cannot locate the
reset jumper, just remove the BIOS battery for approx. 30 mins. This
will discharge the battery voltage in the BIOS, then insert the BIOS
battery back and you can go into the BIOS configuration and set the Date
and Time etc.
i dont know which compaq system you had, but generally there are two ways to reset bios
1. short the bios reset jumper near battery on motherboard for a while and place it back, it will reset the bios.2. take out the battery from motherboard for some time and put it back to motherboard it will also reset the bios if there is no password problem then just load bios default from the bios menu.
Reset the motherboard BIOS. To do this: 1. Open your computer casing where the motherboard lies in. 2. Look for the BIOS jumper settings. It should be near the battery. 3. And there reset the bios settings. (To do this, refer to your motherboard manual.) 4. Once already done. Close the casing and power up your computer. See how it works.:-)
If you have lost your bios password, only way out of this is accessing the motherboard and resetting the cmos. If you access the mothernboard you can reset the bios removing the little coin battery from motherboard for one minute. There is also a 3 pins bridged contact, near to bios chip, if you move the contact on the other two pins it will do same as removing battery.