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Re: Replace CMOS battery in NEC Versa M340
So you need to replace rtc to remove password or reset bios yeah...
send me your email and I'll give you link to download iso for bootdisk program to do just that..
you download software (I provide) unpack it (winrar) and write to cd,then use the cd to remove passwords and rest bios and a whole lot more
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these drivers are found at http://download.cnet.com/2000-20_4.html on the home page you should see a search tab just type in what you are looking for eg: nec versa m340 drivers you might have to try a few times to get it right hope this helps
Follow these steps to clear the password: NOTE: These steps also clear CMOS. 1. Shut down the computer.
If you are unsure whether the computer is off or in Hibernation, turn
the computer on, and then shut it down through the operating system. 2. Disconnect all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery 5. Remove the real-time clock (RTC) battery 6. Wait approximately 30 minutes. 7. Replace the RTC battery and reassemble the computer. 8. Connect AC power to the computer. Do not reinsert any batteries at this time. 9. Turn on the computer. All passwords and all CMOS settings have been cleared.
This "0251" error indicates that the CMOS (complementary metal-oxide semiconductor; a memory chip that holds data the computer needs each time it starts, such as the current time and the BIOS [Basic Input/Output System]) has become corrupted or damaged, typically because of one of these three reasons: A BIOS update has gone awry, a recently installed program incorrectly modified the BIOS, or the computer battery is running out of power.
If you recently upgraded the BIOS, the first thing you should do is edit the BIOS settings. The BIOS developer can help you access the BIOS Setup utility and configure the BIOS accordingly. Likewise, if you recently installed a program that may have modified the BIOS, contact the software developer for assistance in reconfiguring the BIOS for the new program. If you did neither of these things, the culprit is probably a faltering battery. You can probably replace the battery on your own, but the process varies widely depending on the type and age of the computer. We suggest consulting the documentation that came with your computer or contact the computer manufacturer to determine the type of battery involved, where to purchase a new one, and how to replace it. You can also access the BIOS Setup utility and write down the BIOS settings to reconfigure the BIOS correctly after installing the replacement battery. Once the new battery is in place, you will have to reconfigure the BIOS and reset the system time, but the error message shouldn't appear again.
try the following; phoenix, PHOENIX, CMOS, BIOS If that does not work you have two options. 1) remove all power and all batteries for about 15 minutes (there is a battery on the motherboard) and it should reset to blank.2) if you can boot there are various bios hack programs to reset the bios but I would only do this as a last resort. I absolutely do not trust someone to hack the bios if I can avoid it.
The BIOS password may be removed by removing the BIOS battery from the notebook for 20 mins. If you cannot wait for this period, then short out the battery contacts for a few secs. Replace the BIOS battery and go to the BIOS configuration and set the Date & Time etc. If this procedure does not work then try this WEB site for BIOS passwords :- http://www.biosflash.com/e/bios-passwords.htm
I know some methods to reset bios password. 1. The best and easiest method: Close OS and shut down the electricity power of computer. Open your computer box, take out the cmos battery from the mainboard. Then the bios password will be reset to blank. Put it back after a few minutes. 2. Follow some hard tutorials, it is difficult to do. It is better that you are a expert. For example this tutorial: Bypass BIOS Password or Crack CMOS Password? 3. Use the bios password recovery tool , but that is not free!
So I would suggest you the 1st method. Hope it helps.
YOu can reset bios password with 2 method. (1) open back cover of
laptop then find motherbord .Pull cmos cell from motherbord for 15
minutes then again put it in it's position .then it not ask for
password. (2)You can clear password with jumper settings find jumper on motherbord named clear cmos it has 3 pin .1-2-3 Put jumper in 2-3 position then again put it in 1-2 position then check . Let me know if you need more assistance. Thanks.
First you need to take the cover off your laptop and locate the cmos battery which looks like an oversize battery watch. With everything unplugged it just pulls out, note which side of the battery goes however. Place the new one in put everything back together and power the computer up. When it powers up it will finally get to the screen that says press "F1" for setup or "F2" to continue. Press F1 and you will get to your set up screen. You can go through each screen and select F5 which is the default factory settings or scoll across the top to the last screen which will give you the option of resetting all the settings to factory default with just pressing one of the F keys once only. Once you do that, just shutdown your computer and restart and it will start as normal. It may go through the F1 and F2 screen one more time but just press F2 and continue. After you log off the next time all your changes should be good. Let me know if I can help you in any other way.