Question about Toshiba Satellite A25-S207 Notebook

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During start up screen displays RTC batt low /cmos cksum inconsis

RTC LOW BATT OR CMOS CKSUM IS INCONSISTANCE DISPLAYS DURING BOOT UP THEN SHUTS DOWN. BATT TAKES CHARGE BUT NOT FULL CHARGE: A25-S207 SATELLITE

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Replace Battery.

Posted on Feb 15, 2009

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M5A78L-M/USB3 error code purple


You can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, which include system setup information such as system passwords.


















To erase the RTC RAM:









1. Turn OFF the computer and unplug the power cord.











2. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3 for about 5~10 seconds, then move the cap back to pins 1-2.









3. Plug the power cord and turn ON the computer.









4. Hold down the <Del> key during the boot process and enter BIOS setup to reenter data.











Note: You may also need to remove the CMOS battery from the motherboard in some cases.

Sep 12, 2014 | ASUS Computers & Internet

1 Answer

I have an lg optimus S that i got from a friend, she said it worked fine and it did for her but she did the factory reset and now it freezes up and shuts off


Restart your computer
During the boot process you will see on the screen to press a certain key to enter setup
Press and hold that key during the boot up process to enter BIOS using the arrow keys load failsafe defaults or load optimized defaults press escape then press f10 to save to cmos to restart
make sure your ram modules and cmos battery are securly seated wuth no dust in the sockets although some cmos batteries are soldered in
hope this helps

Sep 22, 2011 | LG Computers & Internet

1 Answer

Computer would not booy up. now it does but the password does not work


which operating system ant what type of computer??
Restart your computer

When you boot up to the log in screen type in administrator as user to log in if you cant log in

during the boot up process you will see on the screen for a short amount of time press a certain key to enter set up press and hold that key during the boot up process to enter BIOS scroll down to set user password or supervisor password you can change or remove your password from there
also
During the boot process you will see on the screen to press a certain key to enter setup
Press and hold that key during the boot up process to enter BIOS you can load failsafe defaults or load optimized defaults ,press escape then press f10 to save to cmos to restart

also
how to reset or clear the BIOS password is to physically remove the power from the computer by disconnecting the power plug and then removing the Cmos battery for 30 minutes from the motherboard. Another way is to reset the clear CMOS jumper on the motherboard itself. Both of the 2 methods mentioned works because most motherboards use a battery to sustain the BIOS/CMOS settings for the motherboards PROM chip. So by cutting off cmos the battery power, the BIOS/CMOS settings will be erased
or if using XP
During the boot process tap the f8 button three times this will boot into safe mode where the only things working will be your mouse and keyboard enabling you to attempt to repair your computer Advanced Boot Options screen appears. Select the Safe Mode option using the up and down arrow keys, then press the ENTER key. Choose "Windows XP Home/Professional", depending on the version of the operating system. Press ENTER. Shortly, the welcome screen should show.
Log in as "Administrator". Click Yes to not use System Restore Mode.
Click the Start button. Choose Run and type in "control userpasswords" (without the quotes). Click OK.

Select the "Administrator" user. Click Change my password. Enter a new password in the corresponding text boxes. Click OK. Write this password down and store it in a secure place Close the User Accounts window and restart Windows.

hope this helps you

Sep 10, 2011 | Computers & Internet

1 Answer

HP Compaq NC6000\r\nWhen I press the power button it seems to start but the only thing I see is numbers going by rapidly in the form of kbytes (524288 KB ok) then it reads 162-system Options not set. Then...


Hi promano67

When you "start" the computer, and the {"Screen"} displays a "Error Message."[CMOS] "error checksum!"

Settings: "Default" loaded.A "checksum error" shows that:

The ("Boot-up Settings "have been changed?"), ie. "Booting OS."

*Boot File 'missing'.

"This can 'occur' if the computer was "shut-down unexpectedly."

Force Shut-down : Power lost; due to 'low battery...'

A ("Power Surge") can cause this 'problem' also.

"What 'happens is that the [CMOS] settings are lost!".
"To fix the problem!"

Do the following:

  • "Restart / Boot the computer.

  • Next, verify if the 'error message' displays?

  • If you are still getting the message?

  • "You will have to "Remove the CMOS battery form the computer!"

  • Shut-down the computer.

  • "Unplug the computer from the {Wall Out-let}.

  • Remove the Lithium battery from the "Notebook."

  • There is a compartment (underneath) the "Notebook that 'store' the CMOS battery."

  • "You will need a {very small Phillips screwdriver}._953.jpg *Remove the CMOS battery for: [30 minutes].

  • !Important: If you have to do it again?

  • Remove the CMOS battery for a {'longer amount of time'}.

  • Replace the "CMOS battery."

  • Next, "Only plug the Power Adapter into the computer.

  • "Do not - replace the "Lithium battery!"

  • Once you have completed these 'task'.

  • "Restart the computer."

  • "Press the [F2] key, to 'enter' the CMOS / BIOS Setup!" _951.jpg

  • Next, 'reset' (all) "Values to the Default Settings."

  • "Press the [F10] key to 'Save' the changes!"

!Important: "Take a 'moment to rate the help', so I can get 'credit' for the work.

Thank you!" - paul7of9







Mar 13, 2011 | HP Compaq nc6000 Notebook

1 Answer

During startup my display reads-rtc battery is low or cmos countdown is inconsistent


you should start by changing the rct battery and see if that fixes the problem

Nov 03, 2010 | Toshiba Satellite A45-S120 Notebook

1 Answer

Time and date stop when laptop powered off.


it sounds like the cmos batt had the same problem with my desk top once changed cmos batt all was fine .the batt is located on the under side of the laptop you will see some removeable panels just check under these,but be carefull the batt might be soldered in, some are some are not. if soldered in you might want to get a professional to change it as the heat could damage your computer.
hope this helps.

Apr 25, 2010 | Computers & Internet

1 Answer

**** RTC battery is low or CMOS checksum is inconsistent **** Press [F1] to set Date/Time


Hello

Please reset cmos to factory defaults.
Then enter the bios setup and configure it and save changes.

Apr 20, 2009 | Computers & Internet

1 Answer

Chassis intruded!!


Clear RTC RAM (CLRTC)

This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, which include system setup information such as system passwords.
1. Turn OFF the computer and unplug the power cord.
2. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3 for about 5-10 seconds, then move the cap back to pins 1-2.
3. Plug the power cord and turn ON the computer.
4. Hold down the <Del> key during the boot process and enter BIOS setup to reenter data.

Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default position. Removing the cap will cause system boot failure!If the steps above do not help, remove the onboard battery and move the jumper again to clear the CMOS RTC RAM data. After clearing the CMDS, reinstall the battery.

You do not need to clear the RTC when the system hangs due to overclocking. For system failure due to overclocking, use the CPU Parameter Recall (C.P.R) feature. Shut down and reboot the system so the BIOS can automatically reset parameter settings to default values

Mar 18, 2009 | ASUS P5V800-MX Motherboard

1 Answer

Toshiba Portege R100 CMOS/BIOS PROBLEM at startup.


I'd look at trying to replace the BIOS battery...
Check out this guide for dis assembly instructions :
http://www.irisvista.com/tech/laptops/Toshiba_Portege_R100/remove_system_board_1.htm

Feb 22, 2009 | Toshiba Portege R100 Tablet PC

1 Answer

Message before boot


plz try by changing the cmos battey

Jul 29, 2008 | Toshiba Portege M200 Tablet PC

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