Whenever I open Chromium and visit any website, Chromium thinks that the certificate isn't valid yet. I know that's because of the system clock, and when I try to change the system clock nothing happens. The BIOS also gives me a warning on boot saying the system clock has not been set and setting it also does nothing. I would like to fix it.
You will likley need to replace the CMOS battery.The C510 service manual can be downloaded. Battery is likley fairly inexpensive so worth trying.