Wrong date/time in bios & Win XP

[calvina]

Having this difficult problem where the date/time in my computer is backdated to the date/time last logged off. It started with the problem whereby have to change the setting in the bios (due to weak battery?) Now, after chnaging batteries and clear cmos. the problem of the wrong date/time happens. Anyone can help? Thanks.

[dl65]

 calvina ..... Are you not able to set the correct time and date in the bios and then save changes  and exit ?

BTW, what time and date are being displayed ?

dl65 

[calvina]

I could either change from the bios or in Win XP. The time date shown will be base on the last time I log out from windows (and switching off the power supply).

[GX1_Man]

Is the battery in correctly? Was it new?

[calvina]

Just change another new battery. Still having the same problem.

[The Saviour]

Are you saying the time in your BIOS settings do not change...even after you change it then exit...saving your settings?

If the time in your BIOS is being displayed correctly, but not in Windows...and you've just replaced the CMOS battery...try going into your time settings and synchronizing the time with an Internet server.  Disable your firewall before you do this.  Firewalls have a tendency to prevent the synchronization process.

If you're certain the CMOS battery is new and seated properly and the time is not being displayed correctly in either BIOS or Windows XP, then I might suggest a BIOS update.  However, please note...flashing the BIOS should only be done as a last resort.

What is the make and model of your computer?

[calvina]

I could change the time in BIOS and time is correct also in Win XP. The time stop once I log off. When I log in for example the next day, the time shown will be the time which was yesterday that I last log off.

No, time in BIOS & windows are the same

Already did a BIOS update few months ago.

DIY -Shuttle AN40 old motherboard with AMD2.5 XP G, 1gb ram. This problem only starts recently and do not have this problem for the past 5 years. 

[contrex]

I would like to focus on how we are using the phrases "log in" and "log out". Do you mean the standard NT/XP/2K login/logout, or are you talking about switching the PC on and off?

[calvina]

what I mean was switching the PC off = log off, switching the pc on - log on.

[contrex]

have you cleared CMOS?

[The Saviour]

have you cleared CMOS?

Contrex...see original post.

[contrex]

I meant again, after changing battery. My Shuttle sometimes needs 2 or 3 clear CMOS operations.

[calvina]

Ok, have cleared cmos before, will clear again and see whether it helps.

[contrex]

Shuttle AN40 is pretty old product... could be hardware related... Shuttle sometimes a bit flaky... I speak as Shuttle owner (ST62K Zen)