[SOLVED] My Pc wont open even reach bios

No beep sound

what happened?
I tried changing my ram timing from 9-9-9-28 to 7-7-7-21 on the bios after saving it died then when i try booting it wont start. tried to remove the battery for several minutes and after that i tried turning it one but still wont am i doomed already what would have break?

After calming my self i tried troubleshooting by removing one of the ram sticks and it turns out one had died TT now i only got one left TT i will not anymore try any memory oc ^^ im very lucky ram this day is quite cheap