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Windows Legacy OS forum

General discussion

CMOS battery

by kwokwai -space4english / April 9, 2006 1:53 PM PDT

I am using Win98 and WinXP in two PCs which are 6 yrs old and 2 yrs old respectively, but both the PCs seem to encounter the same problem due to CMOS battery.

For the PC that has got win98 installed, the system always reports me the wrong current date as year 1999.

A similar problem seems to appear in another PC with XPSP1 installed.
When I tried to upgrade WinXP-Sp1 to SP2, it also mentioned that the system couldn't install the battery.

I wonder if both PCs have encountered the same problem?

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Sounds like it. . .
by Coryphaeus / April 9, 2006 10:01 PM PDT
In reply to: CMOS battery

The battery is usually easy to replace. Open the cases and locate them. Swap them out.

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Did you try to replace the batteries???
by Ray Harinec / April 9, 2006 10:47 PM PDT
In reply to: CMOS battery

They only cost a few bucks at any local drugstore, hardware store etc.

The message about SP2 not being able to restore the battery baffles me. After you replace the battery in that system, if you get the message again please post the EXACT text.

The CMOS battery does also power the Non Volatile RAM [NVRAM] which is where the Op Sys looks for all BIOS info during boot. [not all BIOSes are in the file that we call BIOS]. The NVRAM may be a separate chip or in the same CMOS chip that setup and the BIOS is in. It may be called the Real Time Clock chip.

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ok, but how
by kwokwai -space4english / April 10, 2006 3:04 AM PDT

I feel confused of what you are talking about.
You suggested me replace the battery, but I couldn't see it. Where is it located?
How big is its size?

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Kwokai, Pictures And Instructions..
by Grif Thomas Forum moderator / April 10, 2006 8:37 AM PDT
In reply to: ok, but how
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(NT) (NT) A picture is worth a thousand words :)
by tomron / April 10, 2006 9:23 AM PDT
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Grif
by tomron / April 10, 2006 12:04 PM PDT

In the link you provided it says

"Click this link to learn more about this procedure"

There is no link to click on.

Tom

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In addition
by tomron / April 9, 2006 11:11 PM PDT
In reply to: CMOS battery

It might be because the battery in your computer is dying replace it and the clock will work fine.

First take note of whether it is losing time
while the computer is running or while it's powered off. If it's while powered off, the problem is very likely the battery. But if it's while running,it can not be the battery.

If the clock loses time while running, try this:

Open a command prompt window (Start | Run | cmd) and enter the
following commands:

net stop w32time
w32tm /unregister
w32tm /register
net start w32time


Tom

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