What happens if you clear CMOS while powered?

[hyip001]

I was trying to fix a no POST issue and thought I would clear the CMOS...while powered on. Everything just powered off immediatley and won't start up now. Do I need a new CMOS battery or is my motherboard doomed. I hope I did not damage other components too

I have an Asrock Z68 Extreme 4 Gen3 motherboard and has a CLR CMOS switch on the back of the I/O panel

 

[RJC]

Turn power off and have ago at doing a reset again using the switch.

 

[hyip001]

No luck I'll take out the cmos battery and try again in an hour.