How to Reset Your BIOS
Did you recently upgrade your PC, change its components, or test a setting in
the BIOS that now stops it from powering up all the way? First of all, if you have
it, read the manual to the motherboard and look for BIOS or CMOS Reset.
Generally, the easiest and least fiddly method is to remove the power cord from
the computer, open it and look for a button battery (usually bigger than the ones
in a watch) remove it for for five or ten minutes. Resetting your BIOS can get
your computer back in order.
Power down your computer. Shut down your computer from within the operating system.
Step 2.
Locate a rocker-style switch at the back of your PC (if applicable), and switch it from
the ON position (I) to the OFF position (O). If there is no switch, unplug the computer
from the outlet.
Step 3.
Open your case. You will need to be able to access the motherboard of your
computer. be very careful when working on the inside of your computer, as
electrostatic discharge can easily destroy sensitive components. Make sure that you are
properly grounded before working inside the computer.
Step 4.
Find the CMOS jumper. Locate the three-pin jumper on your motherboard that
controls the BIOS. It will usually found near the CMOS battery. The jumper will be
covering two of the three pins.
(The jumper may be labeled CLEAR, CLR, CLEAR CMOS, PSSWRD, or a variety
of other labels. Refer to your motherboard's documentation to find the correct
jumper)
Step 5.
Move the jumper to the other two pins. For example, if the jumper is covering the
first and second pins, move it so that it is covering the second and third pins. Be sure
to pull the jumper straight up to remove it so that you don't bend the pins.
Step 6.
Press your power button. Press and hold the power button on your computer for
about 10-15 seconds (nothing should happen because the power is turned off). This
will discharge any remaining power stored in the capacitors. This will make the BIOS reset.
Step 7.
Return the jumper to its default position. Put the jumper back on the pins that it
was originally on. This will allow you to access your BIOS when you start your
computer up. Close up the case when you are finished.
Step 8.
Turn the power supply back on. Move the rocker-style switch at the back of your
PC to the ON (I) position. If you unplugged the computer from the wall, plug it back in.
Step 9.
Power on your PC. Press the front Power button. You will need to enter your BIOS
and reconfigure all of the settings, including the time, date, and boot order.
Step 1.
Power down your computer. Shut down your computer from within the operating
system. Locate a rocker-style switch at the back of your PC (if applicable), and switch
it from the ON position (I) to the OFF position (O). If there is no switch, unplug the computer
from the outlet.
Step 2.
Open your case. You will need to be able to access the motherboard of your
computer. be very careful when working on the inside of your computer, as
electrostatic discharge can easily destroy sensitive components. Make sure that you are
properly grounded before working inside the computer.
For many laptops, you can access the CMOS battery from a removable panel on
the bottom of the laptop. If there is no panel available, you will most likely need to
disassemble the laptop to access it.
Step 3.
Remove the CMOS battery. The battery is typically located near your PCI slots, but
may be in different locations depending on the manufacturer of your motherboard. It
may be hidden by expansion cards and cables. The battery is usually a standard 3V, round,
flat watch battery (CR2032).
Step 4.
Press your power button. Press and hold the power button on your computer for
about 10-15 seconds (nothing should happen because the power is turned off). This
will discharge any remaining power stored in the capacitors. By discharging the power, the
CMOS memory will reset, thereby resetting your BIOS.
Step 5.
Reinsert the CMOS battery. Carefully reinsert the CMOS battery back into its
housing. Make sure that you have put the battery in the right direction. The slightly
smaller side should be facing down.
Close your case back up after reinserting the battery.
Step 6.
Turn the power supply back on. Move the rocker-style switch at the back of your
PC to the ON (I) position. If you unplugged the computer from the wall, plug it back in.
Step 7.
Power on your PC. Press the front Power button. You will need to enter your BIOS
and reconfigure all of the settings, including the time, date, and boot order.
Did you recently upgrade your PC, change its components, or test a setting in
the BIOS that now stops it from powering up all the way? First of all, if you have
it, read the manual to the motherboard and look for BIOS or CMOS Reset.
Generally, the easiest and least fiddly method is to remove the power cord from
the computer, open it and look for a button battery (usually bigger than the ones
in a watch) remove it for for five or ten minutes. Resetting your BIOS can get
your computer back in order.
Method 01
Step 1.Power down your computer. Shut down your computer from within the operating system.
Step 2.
Locate a rocker-style switch at the back of your PC (if applicable), and switch it from
the ON position (I) to the OFF position (O). If there is no switch, unplug the computer
from the outlet.
Step 3.
Open your case. You will need to be able to access the motherboard of your
computer. be very careful when working on the inside of your computer, as
electrostatic discharge can easily destroy sensitive components. Make sure that you are
properly grounded before working inside the computer.
Step 4.
Find the CMOS jumper. Locate the three-pin jumper on your motherboard that
controls the BIOS. It will usually found near the CMOS battery. The jumper will be
covering two of the three pins.
(The jumper may be labeled CLEAR, CLR, CLEAR CMOS, PSSWRD, or a variety
of other labels. Refer to your motherboard's documentation to find the correct
jumper)
Step 5.
Move the jumper to the other two pins. For example, if the jumper is covering the
first and second pins, move it so that it is covering the second and third pins. Be sure
to pull the jumper straight up to remove it so that you don't bend the pins.
Step 6.
Press your power button. Press and hold the power button on your computer for
about 10-15 seconds (nothing should happen because the power is turned off). This
will discharge any remaining power stored in the capacitors. This will make the BIOS reset.
Step 7.
Return the jumper to its default position. Put the jumper back on the pins that it
was originally on. This will allow you to access your BIOS when you start your
computer up. Close up the case when you are finished.
Step 8.
Turn the power supply back on. Move the rocker-style switch at the back of your
PC to the ON (I) position. If you unplugged the computer from the wall, plug it back in.
Step 9.
Power on your PC. Press the front Power button. You will need to enter your BIOS
and reconfigure all of the settings, including the time, date, and boot order.
Method 02
Power down your computer. Shut down your computer from within the operating
system. Locate a rocker-style switch at the back of your PC (if applicable), and switch
it from the ON position (I) to the OFF position (O). If there is no switch, unplug the computer
from the outlet.
Step 2.
Open your case. You will need to be able to access the motherboard of your
computer. be very careful when working on the inside of your computer, as
electrostatic discharge can easily destroy sensitive components. Make sure that you are
properly grounded before working inside the computer.
For many laptops, you can access the CMOS battery from a removable panel on
the bottom of the laptop. If there is no panel available, you will most likely need to
disassemble the laptop to access it.
Step 3.
Remove the CMOS battery. The battery is typically located near your PCI slots, but
may be in different locations depending on the manufacturer of your motherboard. It
may be hidden by expansion cards and cables. The battery is usually a standard 3V, round,
flat watch battery (CR2032).
Step 4.
Press your power button. Press and hold the power button on your computer for
about 10-15 seconds (nothing should happen because the power is turned off). This
will discharge any remaining power stored in the capacitors. By discharging the power, the
CMOS memory will reset, thereby resetting your BIOS.
Step 5.
Reinsert the CMOS battery. Carefully reinsert the CMOS battery back into its
housing. Make sure that you have put the battery in the right direction. The slightly
smaller side should be facing down.
Close your case back up after reinserting the battery.
Step 6.
Turn the power supply back on. Move the rocker-style switch at the back of your
PC to the ON (I) position. If you unplugged the computer from the wall, plug it back in.
Step 7.
Power on your PC. Press the front Power button. You will need to enter your BIOS
and reconfigure all of the settings, including the time, date, and boot order.
Important
- Don't forget to configure your BIOS after this process. Without any custom configuration, most systems should still function adequately with their default settings
- Ground yourself before handling any components inside a PC to reduce the risk of electrostatic discharge from damaging your PC.
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