Yep, no RAM = continuous beeps
I haven't heard of it ever doing any damage to your board either. If you're just trying to figure out what's wrong, I would suggest disconnecting everything from the mobo (including the case pinouts), and use a jumper to jump the "on-switch" pins to turn it on. If it's down to the CPU or mobo, you really won't know for sure until you can swap out for known working parts. Good luck.