Hey I get the error "DMI event log space full" whenever I start my PC.the problem is coming from the today when I just connected other cpu to my monitor.sometimes my PC gets hang and sometimes it restarts automatically. Help.and tell meth steps to remove this error.

Try this
Dmi Event Log Space Full | Fix startup warning for DMI logs (http://www.troublefixers.com/fix-dmi-event-log-space-full-warning/)

Thank you very much.my problem is being fixed