Memory installation problem

Question

I bought another memory stick( pc2700 512 ddr raam Centon). and I went to install it in. After I turned my comp on it blue screened and had a message on the bottom which said (Beggining Physical dump). I have a ASRock K7VM4 mobo. when I removed the memory my comp turned on correctly.  I tested the memory by placing one stick only in the slot and it booted up. so both sticks work. Then I put them in both and in the begining when it boots up and does the memory check it read it as 10............ so it read them both and after the win xp logo popped up it blue screened again. it keeps telling me sometype of error and then it says begining physical dump. the comp doesnt seem to boot up when both sticks are in. is there anything in the bios or anywhere else that I have to do.