03-10-2009 08:16 PM
2) Disconnect AC adapter
3) Remove battery pack, and remove the laptops keyboard
4) Disconnect RTC (Real Time Clock) battery (located underneath the keyboard, the red/white wire)
5) Leave off for five minutes
5a) I reconnected the AC adapter and powered on the laptop at this stage (before RTC battery was re-connected) This wipes the CMOS memory.
5b) Turn off computer.
6) Reconnect the RTC battery and reassemble the laptop
7) Reconnect AC adapter (DO NOT REINSERT ANY BATTERIES AT THIS TIME!)
8) Turn on the computer and enter the BIOS by pressing F10
9) Set the new BIOS password (if required) and save all settings.
10) Turn off the laptop and reinsert the battery
09-04-2009 04:41 PM
I have just "dismantled" my nc6400, and the only thing different that I did from the steps outlined was that I removed the power after Step 5b. I reassembled the laptop, then followed the steps. It works fine for me. I tried a few different forums, but could not locate anything which provides a different process.
I will keep looking for you though ;)
11-28-2012 09:52 PM
you can also try Shorting the pins of the RTC battery holder ot the plug point on the systemboard.
NOTE: make sure you perform a power drain before this and also make sure the battery is disconencted. Do not short the RTC battery terminals.
11-29-2012 09:34 AM
Note to all !!!
If "Stringent Security" is enabeled then removing the BIOS battery will do nothing.
Have tested on many models.
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