Chosen Solution

I need to remove bios password

  1. Locate and remove the RTC battery
  2. locate and remove the main battery and unplug power supply.
  3. depress the power button for 30-60 seconds. you do not have to solder anything to the board if there are posts ic 61,63 on MAIN PCB then just put a jumper across them while you power up. if its just 2 SMD pads just use a needle probe to arc the connection.

remove cmos battery for about 10 seconds.

I find this article about how to reset or remove BIOS password, perhaps it will help you solve your problem: http://www.recoverlostpassword.com/artic…

I tried the “remove all power” tricks mentioned above (also mentioned in many places on the Internet), and they did not work for my CF-29 Mk3 (Model CF-29HTM50BM). What did work for me was upgrading the Embedded Controller and BIOS firmware from a pair of diskettes as mentioned in this thread from Victor at AllService (https://www.allservice.ro/forum/viewtopi...). Download the files CF29-EC.rar and CF29-BIOS.rar from the links in the thread, create the pair of bootable diskettes, upgrade the EC firmware first, then the BIOS firmware – at this point my BIOS password was removed. I went into the BIOS settings and disabled the password at boot. Now, will this same procedure work for you? Maybe – my EC and BIOS were downlevel, so the bootable diskettes did have to perform an upgrade, maybe that’s required.