Hello all..I am not very handy with computers but here goes. I have a 900 athlon and I am having problems with my computer freezing. I have purchased many types of pc133 ram and many of them make my computer freeze VERY often while others don't freeze as often. I have tried about 6-7 types and some freeze within the first 30 seconds while some are a little better and freeze about an hour or so. I don't know what the problem is. Why would some ram make the computer freeze so often? I have been trying mostly 256 and some 128. If anyone has any advice I'dr really appreciate it. I don't want to have to buy a new computer. Could it possibly be the motherboard? Id appreciate any help.