Password for bios
It depends where the machine came from. It may have been put on by the shop that sold it, or a previous owner.
Sadly, I cannot find an online manual for this motherboard (it should be a MCP61PM-GM motherboard), which would lead to how to reset the BIOS. Have a look around the motherboad closely, and see if you can find a switch, or even remove the power and the battery for at least 24 hours.
This is some info I found that may help you:
"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."
Jul 31, 2011 |
eMachines ET1161-05 PC Desktop