Easiest way is to pull the old one, generally they are a 20c coin sized cell, 
go to a servo or chemist or possibly supermarket and get a matching one.

If your unlucky you have one thats inside a chip kinda thing on the mbo, you 
can replace them with 2x AA cells and some solder but its probably not 
reccomended if thats not your bag 

Sent from my HTC

-----Original Message-----
From: Jonathan <[email protected]>
Sent: Monday, 30 August 2010 7:00 PM
To: Martin Visser <[email protected]>
Cc: Jake Anderson <[email protected]>; [email protected]
Subject: Re: [SLUG] flashing motherboard with no floppy drive

Now that you mention it, the computer did recently loose its clock once. 
Caused me to really panic as the linux boot reported all my partitions to be 
corrupted! (turned out that was from an apparant incorrect date).

So, where do I get a CMOS battery from?

Thanks

Jon

On Mon, 30 Aug 2010 10:33:02 am Martin Visser wrote:
> Ah, yes. The checksum might be on the CMOS NVRAM settings rather than the
> BIOS executable code. If the BIOS considers the settings invalid (by
> comparing to some stored checksum - also stored in the CMOS NVRAM) then it
> might failing back to what you are seeing. This can be confirmed by
> defaulting the BIOS settings (making sure you have recorded any system
> specific settings that are important, such as drive geometry) and
> rebooting. If you keep system power on between reboots and the problem
> does not reoccur, yet does have problems when your system gets powered
> down (and the CMOS NVRAM needs to rely on the battery) then it could well
> be your battery is at the end of its useful life. (Usually the first sign
> is the system clock no longer operates when powered down).
> 
> 
> Regards, Martin
> 
> [email protected]
> 
> On Mon, Aug 30, 2010 at 8:59 AM, Jake Anderson <[email protected]>wrote:
> > On 29/08/10 18:48, Jonathan wrote:
> >> BTW, just realised I typed the motherboard code wrong, its actually:
> >> GA-7VT600 1394
> >> 
> >> cheers
> >> 
> >> Jon
> > 
> > Just checking, its not the CMOS battery gone flat causing your problems
> > is it?
> > It sounds similar in symptoms.

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