Why perform a CMOS Reset?
Performing a CMOS clear will essentially reset your machine at a BIOS level and default all of the BIOS settings.
This is always a good place to start when troubleshooting a machine that is unresponsive
Things to note before resetting CMOS
Blah Blah RAID
Blah overclocking Blah Blah Blah
Blah UEFI/Legacy Blah Blah Blah
How do I perform a CMOS reset?
There are 2 main methods to clearing a CMOS, these are:
- Disconnecting the CMOS battery from the motherboard
- Activating the clear CMOS header or button
In this tutorial we will describe how to to clear CMOS using the first method as this is universal to nearly all motherboards.
Step 1: – Turn off and unplug your machine
Firstly you are going to need to power down your machine and unplug it.
Then you need to hold down the power button for 10 seconds to discharge the motherboard.
Step 2: – Locate the CMOS battery
CMOS batteries have a wide range of locations and they differ between motherboard models below are some location examples.
Step 3: – Remove disconnect the battery
Now remove the battery from the motherboard