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CMOS setup How can I get into the CMOS setup  after I turn the computer on?

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Here's a good guide to help ya with finding the CMOS Battery:



http://www.irisvista.com/tech/laptops/To...

Posted on Dec 02, 2007

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Posted on Jan 02, 2017

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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

Tip

CMOS Checksum error


<b>Issue:</b><br /> CMOS Checksum Bad or CMOS Date/Time Not Set<br /> <br /> <img src="matrix12_1.jpg" /> <br /> <br /> <b>Cause:</b><br /> This issue is caused when the CMOS values are incorrect. This issue can occur because of any of the below possibilities.<br /> * Bad or old CMOS battery. <br /> * BIOS update<br /> <br /> <b>Workaround 1:</b><br /> 1. Disconnecting power from computer without shutting down computer.<br /> 2. Attempt to reboot the computer. If error still occurs after rebooting the computer enter CMOS setup and check all values, this includes verifying the time and date are correct. Once everything has been verified and/or changed make sure you save and exit CMOS setup. <br /> 3. If you have a Phoenix BIOS and have an option for 'Reset Configuration Data', set this value to 'Yes' and save and exit the CMOS. <br /> <p>4. If the computer was had the power disconnected while it was still running it is possible this could cause the CMOS to become corrupt. Ensure that the computer is ready to be shut off before turning off the computer. If you have a laptop computer ensure that the battery is charged before disconnecting the power connection. <br /> 5. If the CMOS values have become corrupted entering the values in CMOS setup and saving and exiting CMOS should resolve your issues.<br /> <p><b>Note:</b> If this issue continues to occur after you turn off your computer off it is possible that the CMOS battery may be failing or already bad. Before considering replacing the CMOS battery try leaving your computer on for several days. <br /> <b>Workaround 2:</b><br /> <p>If you performed workaround 1 and the error occurs again after a complete power down (i..e. removing the power cord), the CMOS battery is likely bad. Most systems use a small coin style lithium battery. These often last 3-6 years, but at some point run out of juice and need to be replaced. For desktops, your system manual or motherboard manual should specify the type of battery and location on the motherboard. For laptops, it is often very difficult to access and may require a professional to replace it. To replace the battery on a desktop system:<br /> 1. Turn off the system and remove the power plug.<br /> 2. Remove the case or side panel to access the motherboard. <br /> 3. Look for a round silver coin cell, typically in a black holder.<br /> <br /> <br /> <img src="matrix12_0.jpg" /> <br /> 4. Remove the battery while noting which way the battery is located. You may need a small flat screwdriver to release the side clip. <br /> 5. Install the replacement battery with the same battery type, being careful to insert it in the same direction as the removed battery (or using the polarity marked on the holder or manual). <br /> 6. Reassemble the case and power. <br /> 7. Turn on the power. You will get the CMOS Checksum Bad error once more, but it should be the last time. Go into the BIOS setup and set the date and time, and any other options you prefer.<br /> <br /> <br /> Hope this will help...Your response is very much appreciated...

on Jan 24, 2011 | Computers & Internet

Tip

CMOS Checksum error


Issue:
CMOS Checksum Bad or CMOS Date/Time Not Set


ae4e911.jpg
Cause:
This issue is caused when the CMOS values are incorrect. This issue can occur because of any of the below possibilities.
* Bad or old CMOS battery.
* BIOS update.

Workaround 1:
1. Disconnecting power from computer without shutting down computer.
2. Attempt to reboot the computer. If error still occurs after rebooting the computer enter CMOS setup and check all values, this includes verifying the time and date are correct. Once everything has been verified and/or changed make sure you save and exit CMOS setup.
3. If you have a Phoenix BIOS and have an option for 'Reset Configuration Data', set this value to 'Yes' and save and exit the CMOS.
4. If the computer was had the power disconnected while it was still running it is possible this could cause the CMOS to become corrupt. Ensure that the computer is ready to be shut off before turning off the computer. If you have a laptop computer ensure that the battery is charged before disconnecting the power connection.
5. If the CMOS values have become corrupted entering the values in CMOS setup and saving and exiting CMOS should resolve your issues.
Note: If this issue continues to occur after you turn off your computer off it is possible that the CMOS battery may be failing or already bad. Before considering replacing the CMOS battery try leaving your computer on for several days.
Workaround 2:
If you performed workaround 1 and the error occurs again after a complete power down (i..e. removing the power cord), the CMOS battery is likely bad. Most systems use a small coin style lithium battery. These often last 3-6 years, but at some point run out of juice and need to be replaced. For desktops, your system manual or motherboard manual should specify the type of battery and location on the motherboard. For laptops, it is often very difficult to access and may require a professional to replace it. To replace the battery on a desktop system:
1. Turn off the system and remove the power plug.
2. Remove the case or side panel to access the motherboard.
3. Look for a round silver coin cell, typically in a black holder.


06928b6.jpg
4. Remove the battery while noting which way the battery is located. You may need a small flat screwdriver to release the side clip.
5. Install the replacement battery with the same battery type, being careful to insert it in the same direction as the removed battery (or using the polarity marked on the holder or manual).
6. Reassemble the case and power.
7. Turn on the power. You will get the CMOS Checksum Bad error once more, but it should be the last time. Go into the BIOS setup and set the date and time, and any other options you prefer.

on May 30, 2010 | Computers & Internet

2 Answers

Phoenix awardbios CMOS setup utility


What you are supposed to do is set up the CMOS. Usually you are presented with a default setup and unless there is something that has to be changed you can just accept what's shown on the screen.

Nov 15, 2013 | E-Machines eMachines Desktop PC

1 Answer

Start-up and shut down problems, When starting up it says, press f1 to continue, f2 to run set-up.... F1 works but I am getting tired of doing this. Now when the computer starts, it stops at...


Hi names Rui,


For your problem the computer may display a prompt to press F1/F2 or any other key to enter setup each time the computer boots as a reminder on how to enter CMOS. However, if the computer asks to press F1/F2 (or another key) to enter setup and does not continue, this may be caused by any of the below reasons.

  1. New hardware has been recently installed.
  2. Error or confliction with settings in CMOS.
  3. CMOS battery is bad or failing.
Solution:

New hardware has been recently installed

If new hardware has been recently installed into the computer, it is likely that you are receiving the prompt "Press F1 or F2 to enter setup" because CMOS needs to verify that the new detected hardware is properly being setup in CMOS. Enter CMOS setup and save the settings and exit. If you continue to get errors continue to the next step.


Error or confliction with settings in CMOS

If no new hardware has been added or you continue to get this prompt verify no error or conflictions exist in CMOS. Press the key to enter setup and verify that all settings are correct.

If your time and date are not set correctly, your battery is more than likely bad. Try setting the correct time and date, save the settings and then reboot. If after turning off the computer the time and date get reset again replace the battery.

If the time and date are correct and everything else appears to be correct try resetting the CMOS values to the defaults.


CMOS battery is bad or failing

If you continue to receive the prompt to enter setup each time the computer boots up and you have attempted to follow the above suggestions, your CMOS battery is bad. We recommended that the CMOS battery be replaced.


hope this will help you.

Jul 20, 2011 | Dell Dimension 2400 PC Desktop

1 Answer

Hp EliteBook discontinued from workplace, need bios administrator master password. Model 6930p s/n: 2CE910FDBF SERVICE TAG: E6930pUP8400W4X12MINNNN20QeS


hi!
this is how to bypass CMOS SETUP password

*open the cover of you laptop,
*remove the cmos 3v baterry.
*remove the main battery
*push the power button for 10 sec.
*wait for 5 to 15 minutes
*put back the cmos battery and connect the main battery
turn on your computer and enter to cmos setup

Jul 08, 2011 | HP Computers & Internet

2 Answers

I have a dell studio 1555. I did some thing with CMOS screen and I cannot start up WinXP afterward, a continuous reboot with dump screen (blue screen). Any solution ? Thanks


Hi,
This is problem with your CMOS setup.
Go to CMOS setup in that find your hard disk in that that change your hard disk mode from SATA to IDE save changes than ok

Sep 25, 2010 | Computers & Internet

1 Answer

When I turn on the computer, the number lock is on. This started only 4 months ago. I don't use the number lock so I have to turn it off. Don't know how to change the setting. PC with xp operating system.


You can disable the numlock setting on the cmos / bios setup on your computer. restart your computer....hit "delete" key to enter the setup for cmos.

Jul 12, 2010 | Dell Computers & Internet

1 Answer

My computer won't start up and my mouse and keyboard are not working. Do I need to replace my CMOS Battery?


Yes turn off your computer and replace the Cmos battery. It seems that your keyboard and mouse is connected into the usb port of your computer, the usb function in the Cmos setup is disabled that's why your keyboard and mouse is not working. Upon checking the Cmos setup enabled the usb function and save the changes and restart the computer to take effect.

Feb 08, 2010 | Computers & Internet

2 Answers

MY LAPTOP(hp compaq presario v2000)BEEPS TWICE AND DISPLAYS PRESS F1 TO RESUME OR F2 TO SETUP!pls help


Hi, and welcome to FixYa
The computer may display a prompt to press F1/F2 or any other key to enter setup each time the computer boots as a reminder on how to enter CMOS. However, if the computer asks to press F1/F2 (or another key) to enter setup and does not continue, this issue can be caused by any of the below possibilities.
1. New hardware has been recently installed.
2. Error or confliction with settings in CMOS.
3. CMOS battery is bad or failing.
Solution:
New hardware has been recently installed
If new hardware has been recently installed into the computer, it is likely that you are receiving the prompt "Press F1 or F2 to enter setup" because CMOS needs to verify that the new detected hardware is properly being setup in CMOS.

Error or confliction with settings in CMOS
If no new hardware has been added to the computer or the new hardware has been removed and you continue to receive the error, it is likely that there is an error or confliction with the CMOS. Press the key requested to enter setup and verify that all settings are correct. If everything appears to be correct try resetting the CMOS values to the defaults and/or Reset Configuration Data. Additional information about how to do this can be found on document CH000976.
If all settings appear to be correct, save changes and exit CMOS setup. If the error continues to appear, enter setup again and restore all CMOS values to default.
· See our CMOS page for additional help and information with the CMOS.
· Additional information about getting into the CMOS / BIOS setup can be found on document CH000192.
CMOS battery is bad or failing
If you continue to receive the prompt to enter setup each time the computer boots up and you have attempted to follow the above suggestions, it is also possible that the CMOS battery may be bad or failing. Generally; when this occurs, the computer is not holding the time or date correctly. If this is occurring it is recommended that the CMOS battery be replaced.

regards
/Teis the Wiz - -> Vote "FixYa" :-)

Dec 05, 2008 | Computers & Internet

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