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My SB77V10 will shut down without warning. The PSU has been replaced with a KDM MFX9300. If I enter CMOS setup, the box will remain powered up, however after exiting CMOS, the PC will power itself down within 1 to 5 minutes. Sometimes it will shut down before reaching the windows logon. The green led on the MOBO lights up then plugged in, but goes out when the PC powers itself down. Booting without the optical and second HD down not change the problem.

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It sounds like a weak power supply it takes little cpu power to run cmos but it pulls more juice from ps to run windows and that is when your problem occurs when windows try to boot

Posted on Sep 02, 2010

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Hi

try to remove your ram and put it to another pc if it works the problem is on the motherboard.

hope this helps
thx banaple

Posted on Sep 02, 2010

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2 Answers

Locked out from eee box 1035 need to reset bios how?


Try this. Right out of the manual. The reset button is the little pin hole next to the power. Will need a paper clip that is straightened.

Entering the BIOS Setup
BIOS (Basic Input and Output System) stores system hardware
settings that are needed for system startup in the PC.
In normal circumstances, the default BIOS settings apply to most
conditions to ensure optimal performance. Do not change the
default BIOS settings except in the following circumstances:
An error message appears on the screen during the system
bootup and requests you to run the BIOS Setup.
You have installed a new system component that requires further
BIOS settings or update.
WARNING!
Inappropriate BIOS settings may result to instability
or boot failure. We strongly recommend that you change the BIOS
settings only with the help of a trained service personnel.
Quickly enter the BIOS
Windows8 boot time is quite fast, so we developed the following
three ways for you to quickly access the BIOS:
Before booting up the system, insert a straightened paper clip
into the BIOS Reset key.
BIOS Reset key
Press the power button for at least four seconds to shut down
your PC, then press the power button again to turn your PC back
on, and press F2 during POSt.
When your PC is off, disconnect the power cord from your PC's
power connector. Reconnect the power cord and press the
power button to turn on your PC. Press F2 during POST.

Oct 16, 2013 | Compaq Presario 5000 PC Desktop

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

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

I have a Soya SY-7VCA mobo that hasn't been used for about 6 years. Upon bootup, I received a CMOS checksum error message, but was still able to load a copy of Windows 98SE that I had on floppy. After...


Probably your BIOS battery, replace that and setup you BIOS again and it should be fine. BIOS batteries look like little round watch batteries.

Any more questions just let me know.

Thanks
John

Feb 14, 2011 | Soyo SY-7VCA Motherboard

4 Answers

When I turn my computer on, I get an istant error message: CMOS setttings error. Any idea what to do?


I THINK YOUR MOTHERBOARD BATTERY MAY BE DAMAGED OR DOWN. YOU HAVE TO REPALCE THE BATTERY AND TRY AGAIN TO START THE PC.

Oct 03, 2009 | Fujitsu Siemens AMILO Pro V2010 Notebook

1 Answer

Cannot get into 'Setup'


when upower up press
"del"
F2
F8
F12
F10
try above
then u can able to enter in bios

Apr 09, 2009 | Computers & Internet

1 Answer

Powers up shuts down in about 5 seconds


hi! if that's the problem inirially chech your power supply unit(PSU)
you can't enter in any of those system unless you stabilise your power,it's kind of tripping off.can you check your PSU,doing this is work by qualified technician,if your qualify follow this procedure unplug your PC on avr (auto variable regulator power )supply ,disconnect all power supply on mother board and to accessories take the big one with several connection.get piece of wire or paper clip w/o insulation insert to two terminal on one black terminal,the other on green terminal, plug it on and switch on observe if will trip of checking on blower fan backside of PSU. if trip off replace your power supply or if you have other PSU put it on to your PC satrt in on.If symtom persist you problem on memmory card or video card.Three of this part can run your w/o hardis and cd-room.you can check your bios,cmos set up press delete or F2 at start of windows sart up.

Mar 18, 2009 | Dell OptiPlex GX270 PC Desktop

1 Answer

My PC does not boot when I press the power button on. The power comes alright but it will not boot and load files unless I leave it on for a long time and later reboot it again. This has been the problem...


You need to clear cmos usually on board is a little coloured jumper,but also first disconnect power plugs from board which come from the big psu,normally have a little clip you have to squeeze,find cmos normally 3 pins with a littl jumper move it from one set of pins to next set of 2 pins,you normally have i pin exposed,so move left or right and hold for 10 seconds make sur e you put back as it was,reconnect psu plugs ,reboot enter the bios normally Delete button or what it says on your screen normally setup button ,reset your time and date and make sure you save your settings before you leave bios page


Jan 14, 2009 | Computers & Internet

1 Answer

Computer shuts down but does not turn off


Mchem, you actually have 2 separate issues going on there.
  • Open control panel > open the system control panel
  • in the system properties, click on the advanced tab
  • in the startup and recovery section, click the settings button
  • In the startup and recovery dialog box, under system failure, remove the check from the automatically restart option
  • click ok
  • click ok

  • Open control panel > open power options
  • in the power options properties, select the advanced tab,
  • in the power buttons section,
  • When I press the power button on my computer: click on the drop down menu and select the shut down option
  • click ok
Sebastien123, you only need to run the first part of this solution.

Dec 20, 2007 | EliteGroup ECS PF5 EXTREME...

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