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CMOS COMPLAIN On every boot time my system shows that GPNV/CMOS CHECK SUM BAD , SYSTEM DATE AND TIME NOT SET, I have changed the battery but still it is showing the same problem

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Bios Eprom issue. Get a new motherboard

Posted on Dec 25, 2008


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Need to reset cmos


Restart your Sony Vaio computer. Press the "F2" key to enter the BIOS. Use the arrow keys to highlight the "Load BIOS Defaults" menu option. Select it by pressing "Enter." Highlight "Load BIOS Defaults" again and hit "Enter." This will reset all of the settings of your Vaio's BIOS back to their original factory defaults. You can now select "Save Changes and Exit" to exit the BIOS.
or

WARNING: Before you start troubleshooting remember that you are dealing with electricity that can KILL. http://www.kitchentablecomputers.com/static.php - rules Only work inside the computer case when the power has been switched off and disconnected. Never open the power source. Power down the system and disconnect the power cord. Wear an anti-static wrist strap to avoid electrostatic discharge damage to the Asus motherboard or CMOS chip or other sensitive components. Remove the cover and locate the CMOS coin cell battery and remove it from the system by gently pushing on the retaining clip and popping the battery out although on some motherboards cmos batteries are soldered in Discharge the CMOS chip by leaving the battery out of the system for up to an hour, depending upon the particular chip and motherboard combination. Replace the battery and replace the cover on the system. Connect the power cord and boot the computer. Save changes if prompted by the BIOS for system memory, drives detected, and other settings, and set the date and time if prompted at this time, or alternately set the date and time when the operating system finishes loading.
If your computer does not have a CMOS battery or you're unable to find it you'll need to do a hard reset on the CMOS using a jumper or dip switch on the motherboard. Information on finding these can be found through your computer or motherboard documentation. or you might set failsafe or optimised defaults Restart your computer During the boot process you will see on the screen to press a certain key to enter setup usually the Delete or F2 key this will vary depending on your computer and operating system 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 hope this helps

Dec 30, 2012 | Sony VAIO RB30C (VGCRB30) PC Desktop

1 Answer

Bad check sum cmos


This error is not the same as a CMOS Checksum Error, which refers to corrupted values of the CMOS settings, the ones you set through the BIOS setup program. This error means the contents of the BIOS code itself are damaged.

The BIOS ROM chip on the motherboard is probably faulty. It could also be another component on the motherboard.

You should make sure that all of the BIOS settings in the system are correct, by rebooting the system, going into BIOS setup and double-checking all the values (hopefully against a recent


If you have reset the CMOS memory you need to go into the BIOS setup screen and reconfigure the BIOS. To do that you need to press a key while the computer is booting. Usually F2 but can be other keys. It should tell you on the bottom of the first screen which key to press to enter BIOS setup.
If you don't know the settings the should be one for optimal defaults - use that one. You will also need to reset the time and date.
Save, Exit and re-boot and everything should then work.

This error is not the same as a CMOS Checksum Error, which refers to corrupted values of the CMOS settings, the ones you set through the BIOS setup program. This error means the contents of the BIOS code itself are damaged.


During the boot process you will see on the screen a certain key to press 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
You will also need to set the time and date

In the main or system setup screen you should be able to see the date and time Using your arrow keys navigate to the date and change the date. Once highlighted on the month, day, or year, press your arrow keys or your page up / page down keys to change the date.
hope this helps you

Nov 18, 2011 | Toshiba Equium 2000 (PV1065E0-011FR) PC...

1 Answer

Good Morning Sir... My Mother Board Is DG41 WV In This System Problm Is Cheq CMOS Problem... So Iam Change The CMOS Battery... Again Smae Problem Phase... & CLR Cmos Jumper Changed Again Same...


If you've replaced the CMOS battery, set the date and time as well.

If the CMOS setting default to the very first date (1st January 20??), it'll automatically report the "Check CMOS" error.

Let us know if this works,
-BuzzPuppy

May 01, 2011 | PC Desktops

1 Answer

When go to internet sersh all time show request time out.


make sure the date and time is set correctly if your cmos battery is bad it will always have the wrong date and time. which throws your system off. if this is useful pease vote thank you. if this doesnt work let me know there is one more thing we can try

Feb 18, 2011 | PC Desktops

5 Answers

How can i tell if the cfmos batterty is dead or


The computer time will not be correct at all times

Jul 07, 2009 | E-Machines T6532 PC Desktop

3 Answers

Every time I bot up my pc the dte and time is


hi,
Coin-shaped batteries on most motherboards should be CR2032. Make sure it is properly installed and + is up. IF you have a multimeter or you have a friend who has a multimeter, remove the battery and check the voltage. It should read 3.0 volts when fully charged. If it reads 1.8 volts or higher is probably OK. Be very careful installing and removing coin-shaped batteries. Most of the battery holders i have seen for these batteries are quite fragile and easily broken. I ease these batteries into the holder with the aid of "tweaker" (small screw driver).

here is a video, you can see how to remove the battery or bypass bios password.



Apr 23, 2009 | Evesham Axis PC Desktop

4 Answers

How do i reset CMOS on kv8 pro? getting POST code 25 comp not booting up, tried replacing ribbon cable, also unplgged keyboard. HELP!!!


unplug your computer, then you will find a small battery on the motherboard, this is a small silver disk shape. you need to remove this by pressing the clip to its side, this lets it spring free. you then need to locate the cmos jumper. this is a 3 pin stand off with 2 pins already covered by a plastic sleeve. remove the sleeve and place it over the other two pins, wait a few seccons then put everythinbg back to the way it was. put the jumper back in its origional position and re-attach the battery making sure it is the right way up. plug in your system and give it a try.

Dec 28, 2008 | PC Desktops

1 Answer

Asus motherboard bios version1104


Whether it shows your cmos checksum error press F1 to continue or f2 to load default.? If this is the problem than kindly switch off the system check for the cmos battery and change the cmos battery and set the date and time properly in the bios and save it by pressing F10.This will resolve your problem.and if not than check the jumper setting on the motherboard is it set to clear cmos and if so kindly remove and set it properly to adjacent jumper ok. Have a nice time.

Dec 04, 2008 | PC Desktops

4 Answers

CMOS battery replacement


Your Pc should have an Intel E210882 motherboard in it.
A coin-cell battery (CR2032) powers the real-time clock and CMOS memory. When the computer
is not plugged into a wall socket, the battery has an estimated life of three years. When the
computer is plugged in, the standby current from the power supply extends the life of the battery.
The clock is accurate to ± 13 minutes/year at 25 ºC with 3.3 VSB applied.
When the voltage drops below a certain level, the BIOS Setup program settings stored in CMOS
RAM (for example, the date and time) might not be accurate. Replace the battery with an
equivalent one. Figure 14 shows the location of the battery.
These batteries are very common and can be purchased at Wal-Mart, Walgreens, Etc...
Here is a link to the motherboard manual with battery replacement procedures:
http://www.asi.com.au/support/Drivers/V206/Manual/SR_English.pdf

Jan 04, 2008 | PC Desktops

2 Answers

I Could not logon to the system


If the 2 beeps were together, then it is a check sum or memory problem. When it boots enter the bios setup(F2) and check the system time and date (located in 'Standard cmos Settings') to see if it is correct, as this is a good indicator of a flat cmos battery (large type watch battery.) If time and date is incorrect replace battery, if ok turn off pc and try re-setting the bios by putting the jumper on the 'JBAT1' terminal on the motherboard on pins 1-2 ont pins 2-3 then back onto 1-2; then boot pc back up and go back into the bios, set the date and time in 'Standard Cmos Settings' and then look on main bios menu for 'LOAD BIOS DEFAULTS' or similair If non of above works, maybe you have upgraded the memory, remove it and try again with original memory stick. Hope this is of some help

Oct 17, 2006 | Dell OptiPlex GX260 PC Desktop

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