CMOS Battery
My PC's clock is losing around an hour over night when it is switched off which I think suggests the CMOS battery may be on the way out.
Assuming it can be replaced, do you lose all the CMOS/BIOS settings in the process or is there something that retains a small amount of charge to give you time to swap old battery for new as happens with some radios and the like?
TIA.
WF.