around with the battery WRITE DOWN YOUR SETTINGS, I can't stress that
enough. When you pull the battery it will set your cmos back to factory
defaults, so you'll need to know how to put everything back.
There are a few different ways to reset the cmos, here's a few:
1. there are many default common passwords,
At boot-up note the BIOS provider (Award, AMI, Phoenix, IBM, etc.)
For Award BIOS' try these backdoor passwords:
For AMI BIOS' try these backdoor passwords:
For PHOENIX BIOS' try this backdoor password:
there are too many to count here's a list
(search for PC BIOS)
2. On some older PC's pressing the insert key upon startup will clear
the CMOS, make sure you hold it down till it's done booting.
3. Another way which we pretty much already covered, was to pull the
metallic nickel looking battery that supplies power to the CMOS.
4. Some times there is a small three pin jumper used to reset the bios,
just move the black little pin cover to the opposite two pins.
(Make sure to read the motherboards manual before this)
5. If the battery is soldered in you can take a soldering iron to it but
I don't recommend it unless you are a professional.
6. there are a few programs out on the net which are made to crack
certain types of bios passwords, I have one for award BIOS's here's a