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Windows 7: CMOS Bad Checksum

31 Jul 2013   #1
jtmoney

windows 7 64-bit
 
 
CMOS Bad Checksum

When I restart my computer it always goes to a screen that says CMOS BAD CHECKSUM then I press F1 to start the computer. I have to update my date and time and then everything seems to work fine. But when I click the arrow on the right side of my toolbar it just shows white spaces and I cant use that area not even the volume. Also Microsoft essentials will not work then recently Windows update stopped working. My computer seems to run slower in general. I don't think its a virus since this all started while my computer wasn't connected to the internet. I also replaced the battery on the motherboard.



Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.130318-1533)
Language: English (Regional Setting: English)
System Manufacturer: eMachines
System Model: ET1831
BIOS: Default System BIOS
Processor: Pentium(R) Dual-Core CPU E5400 @ 2.70GHz (2 CPUs), ~2.7GHz
Memory: 4096MB RAM
Available OS Memory: 3840MB RAM
Page File: 1618MB used, 6058MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)


My System SpecsSystem Spec
.
31 Jul 2013   #2
DocBrown

Win7 Enterprise, Win7 x86 (Ult 7600), Win7 x64 Ult 7600, TechNet RTM on AMD x64 (2.8Ghz)
 
 

When you say you updated the date & time, was it in Windows or in the Bios setup after replacing the MB battery ?
My System SpecsSystem Spec
31 Jul 2013   #3
jtmoney

windows 7 64-bit
 
 

I just change the date and time on the clock at the bottom of the screen otherwise most websites will not work.
My System SpecsSystem Spec
.

31 Jul 2013   #4
DocBrown

Win7 Enterprise, Win7 x86 (Ult 7600), Win7 x64 Ult 7600, TechNet RTM on AMD x64 (2.8Ghz)
 
 

Then you need to set it correctly to your Date & time zone in the Bios setup, then save it & exit to reboot.
My System SpecsSystem Spec
31 Jul 2013   #5
jtmoney

windows 7 64-bit
 
 

How do I do that? Sorry I dont know a whole lot about computers.
My System SpecsSystem Spec
31 Jul 2013   #6
jtmoney

windows 7 64-bit
 
 

Also when I said I have to update my date and time I meant just the clock on the taskbar. Sorry if I wasn't clear.
My System SpecsSystem Spec
31 Jul 2013   #7
DocBrown

Win7 Enterprise, Win7 x86 (Ult 7600), Win7 x64 Ult 7600, TechNet RTM on AMD x64 (2.8Ghz)
 
 

When you first power on the computer, try tapping the F2 key several times to see if you can get into what is the Bios setup. Then look for a setting that allows you to set the current date & time. Then look for the setting to save & exit.


Attached Images
CMOS Bad Checksum-bios_std_cmos_features.jpg 
My System SpecsSystem Spec
31 Jul 2013   #8
jtmoney

windows 7 64-bit
 
 

Ok Ill do that real quick
My System SpecsSystem Spec
31 Jul 2013   #9
jtmoney

windows 7 64-bit
 
 

k I did that and my clock is keeping the time and also the task bar area is working now. But Microsoft Essentials and Windows update are still not working. When I go to windows update and click check for updates it says "Windows update cannot currently check for updates, because the service is not currently running. You may need to restart your computer." I tried restarting but it still doesn't work.
My System SpecsSystem Spec
31 Jul 2013   #10
DocBrown

Win7 Enterprise, Win7 x86 (Ult 7600), Win7 x64 Ult 7600, TechNet RTM on AMD x64 (2.8Ghz)
 
 

By the way, Welcome to Seven Forums.

Ok, we might have the date & time fixed. Did you get the CheckSum error notice when you rebooted ?

What settings do you have Windows Update set for ? Automatic or Download & notify or let me choose ?


Attached Thumbnails
CMOS Bad Checksum-win_update_settings_me_choose.jpg  
My System SpecsSystem Spec
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 CMOS Bad Checksum




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