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Need to bypass/clear the Compaq Presario 1200 bios password

\015 My friend just gave me a Compaq Presario 1200 notebook and when I tried to boot it, it asked me for the bios password. No matter what I do, so I can't neither boot in windows nor get into the bios. My friend doesn't know it too. What should I do to bypass or clear it, please?\015

Answers :

Try removing the main battery, then open the case. Under the keyboard and close to the CMOS chip, you may find a reset buttom or jumper. Alternativelly, you may remove its small round-shape battery for half an hour or so. This would return CMOS features to default. Fix power supply again and restart, normally the BIOS should stop asking for a password
I have recently fixed my Compaq presario 1215 laptop by replacing the CMOS battery (CR1220 in my case). Before that, it kept asking me a password on boot after showing many BIOS related errors. After three password attempts it gave me the 65535 hash code. Removing the battery for 5min did not help. Putting a new battery did.
\012For my laptop I have to remove the 3 bottom screws on the front. Then open the laptop and carefully pry out the speaker-touchpad cover (it has a cable, so do not pull to much). Then you can flip over the keyboard (it also has a flat cable, do not pull too much). At this point I place masking tape to hold them in place.
\012Where the keyboard was, you can see a metal plate with 3 screws. Remove the screws and pry out the plate (it is a bit tough, for it has a sort sticky surface that makes contact with processor.
\012Now you see the internals. Towards the rear there is a small print board that has two connectors. A small one on the left that can stay in place. A big one that connects it to the main print board. Use a small plastic stick or equivalent to pry it up on the right side. Then flip it to the side.
\012The CMOS battery is completely at the rear, under the attachment of the screen. Use flashlight to locate it. Pry it out (it has a plastic U-cover that will come off as well).
\012To place the new battery, I placed two small masking tape portions on its side so that my fine tweezers can have a good grip to place it in its lodging. Then use small plastic stick to push it in place. The same with the plastic U-cover. Put everything back. If you have accidentlally removed the 2 flat cables from keyboard and touchpad, then push them back in before placing back the metal plate.
\012Presto, your 20 year old laptop should work again and let you go into BIOS settings without password.
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