VT6X4 BIOS always reset.

I own another ABIT mobo which is VT6X4. My problem is:

Everytime when I switch on my computer after unpluging and re-pluging the power cord from/to the PSU, the BIOS would automatically be cleared for no reason. So, I have to reset everything each time I unplug the PSU. It is kind of troublesome to do so. I just wonder if anyone here can help me to solve this problem. Thanks

I don't know for sure, but your mobo battery might need to
be replaced

you think it's the batteries problem? I think the date will be slow down if the batteries is weak (with the power cord plug in). Well, but it never happen. I will try it with another bew batteries and see what will happen. Thanks for the reply anyway.