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Cmos Checksum Error - New Motherboard


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#1 jagdog

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Posted 21 January 2006 - 02:42 PM

I purchased this motherboard to build a new machine. From the first time I tried to boot the machine I get a CMOS checksum error - Defaults loaded error on the first screen after the drives check in. If I make any changes in the SETUP my video goes away. The only way I can get the video back is to reset CMOS with the jumper. I was able to load Windows through many CMOS resets, but if I shut the machine down from Windows or try to reboot from Windows my video won't come back unless I reset CMOS. Even if I remove everything but the processor and one DIMM of RAM it still fails. The jumpers are in the correct place. Please help - this motherboard was purchased over 30 days ago so I cannot return it.

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#2 VB4

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Posted 21 January 2006 - 03:29 PM

The battery on the Motherboard may be dead?

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#3 Salo

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Posted 22 January 2006 - 12:15 AM

Switch out the cmos battery, Do you have an agp card installed? Are you onboard everything? How much ram?

It looks like a bad motherboard if you cant do anything to it, Id try it another computer if you can to see if its your peripherals or the motherboard itself.

Edited by Salo, 22 January 2006 - 12:16 AM.


#4 jagdog

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Posted 22 January 2006 - 10:15 PM

Yeah, I tried the battery from another motherboard and same problem. I even started playing with all the jumpers since the Biostar book has no info in it worth mentioning. The only things that can be left are the power supply not giving the right voltage on a plane or the motherboard itself. I just hate having purchased this thing over 30 days ago, what can you do to with a motherboard that has a CMOS problem?

As for the rest of the config the video is a PCI-E x 16, I have 2x512 PC3200 RAM, AMD 3700+ Dual Core, onboard LAN which I decided to use a USB wireless adapter, and onboard sound. This was supposed to be that non-gaming system to knock my socks off, but with a busted motherboard I am ready to throw it out a window.

#5 usasma

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Posted 23 January 2006 - 03:52 PM

How do the capacitor's on the motherboard look? They're the little round things that look like itty-bitty beer cans. Are any of them buldged? Do any have brownish crud on the top?

Here's a link about bad cap's: http://badcaps.com/ident/
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