My PC is about 5 years old and the CMOS battery run out, so I bought a new one and replace it. (I tested the new battery and it's good)
The problem is that after the next time I turned on my computer, I notice that my BIOS settings is not save. I check the new battery and test it and I'm surprise that 3v drop down to 1.3v
Any ideas what's the problem? I already waste 2 batteries, it's very annoying.