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Booting error ("CMOS checksum error")


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#1 Baviss

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Posted 31 January 2010 - 06:53 AM

EDIT: Sorry, I just realised that I posted this in the wrong place. This is more of a hardware problem than a Windows 7 problem, but I don't know how to delete/move topics, or if I can.

I installed windows 7 several months ago and everything has been running fine. However, about a month or so ago, sometimes when I turned the computer on, it would not detect the network card. Normally I would just restart it repeatedly until it did, and when it did find it it ran normally. Recently, it has been taking longer and longer to get it to detect it, and, increasingly, it would just freeze at the first black screen.

Yesterday, my friend (who knows substantially more about computers than I do) came around to clean out the inside of the computer (it was incredibly dusty). Afterwards, it worked just like before, and wouldn't detect the wireless card. However, after several reboots, a new error appeared:

CMOS checksum error - defaults loaded
Warning! now system is in safe mode.
Please re-setting CPU or Memory Frequency in the cmos setup

When I restarted it this time, the computer beeped several times, rather than the usual one beep, and nothing came up. Now, the computer wont turn on at all. Anyone know why/what I can do to get it working again? I already tried asking my friend, and he was not sure what was wrong either.

I have a XFX nForce 630i motherboard (http://www.xfxforce.com/en-us/products/motherboards/6series/630.aspx), if that is relevant.

Thanks in advance

Edited by Baviss, 31 January 2010 - 06:55 AM.


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#2 ratchet48

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Posted 31 January 2010 - 07:24 AM

You should try removing and reinstalling (reseating) your CMOS battery, while you have it open take a look at your capacitors.

#3 Layback Bear

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Posted 31 January 2010 - 08:24 AM

I would start with installing a new CMOS battery and reset your computer time with the web. A weak battery can make CMOS act a little crazy. Make a note of how the battery is installed before removing it won't work upside down.

#4 Baviss

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Posted 31 January 2010 - 07:36 PM

I checked the capacitors last night, they all look fine, and I was going to get a CMOS battery today, but this morning the computer turned on properly, only displaying "CMOS checksum error - defaults loaded". It didn't load the network card, but other than that it ran fine. Should I still look into replacing the battery?

#5 garmanma

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Posted 31 January 2010 - 08:40 PM

They're cheap. Why not?
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why won't my laptop work?

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