well l mistakely tried to insert a ddr2 stick in a ddr3 dimmslot and that's when l had problems, l only had a 4 gb vengeance ram stick but when l realised that the ddr2 wouldn't fit on a ASUS M4A89GTD PRO/USB3 motherboard l restarted the desktop. The screen wouldn't come on and the dram light kept flashing and sometimes with a stable light while always beeping, when l tried take off the ram stick it needed more force to pull out and l think that damaged the dimm slots. One of the blue on has a raised right side and the second slot has a missing tooth.
So my question is what exatcly is causing the dram light to keep beeping and do l need a new motherboard, cause l doubt l can get one.
I'm not even sure how you managed to fit DDR2 RAM into a DDR3 slot, since the notches shouldn't line up. However, since you proved that where there's a will there's a way, and given everything else you describe, I would say you have pretty well destroyed the board.