One of my pc that is standing the bedroom has a problem. No really but it is strange. After the installing of Arch Linux the Bios displays me all the data and can only start by pressing F1.
But it does not always appears.
I just have read that my battery could be empty. The error message: „cmos checksum bad“ seems that it is empty. On the mainboard there is a battery that controls the time in the BIOS.