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Removing the CMOS battery like the one shown in the picture to the right will cause the system to loose all CMOS settings including the password. To do this locate and remove the CMOS battery on themotherboard for at least five-minutes. After this has been done put the battery back into the computer and turn it back on. Jump the CMOS solder beads Older computers and especially older laptops don't have jumpers or dipswitches and require the user to jump a pair of solder beads on a circuit board. The identification and location of these solder beads can vary and if not available in computer documentation is only obtainable through the computer manufacturer. If you've identified the solder beads they can be jumped by placing a flat-head screwdriver over the two beads and leaving it on those beads while turning on the computer. Once the computer has booted turn off the computer and then remove the screwdriver.
y this procedure. It very serious problem. For someones... To remove that password there are few steeps:
0. remove AC power 1. remove system battery (primary and multibay if present) 2. remove harddrive from harddrive bay 3. remove Multibay Devices from multibay 4. remove small round battery pill 3.3V, located under a cover on left side of touchpad. Remove cover gently (is no need to remove keyboard, but cover is removable with some power...) Delicate unplug small conector with cables leading to battery, 5. wait 5 minutes 6. connect AC power 7. Turn on computer unit (BIOS gets a few errors = date, time, mismatch etc. no need to panic, if everything is ok then get into computer setup pressing F10, change existing setup values as needed, if ok power down computer. 8. unplug AC power 9. Plug small battery into motherboard 10. install Hdd and multibay devices 11. Install system batteries 12. Power Up computer, there could be no password anymore