Hi I have a computer here that I put memory in pc100 memory 2X 128mb + 64mb that was in it from factory. Anyway put the memory in and worked fine for a couple of weeks then went to turn it on and all it would do is beep. checked the beep codes online and found that it is memory so I took the memory out and reseated it and worked fine again. now every week or so have to take the memory out and put it back in. as a last ditched effort I took out the 64mb stick and tried reseating the memory in all different ways and nothing seemes to work. I am wondering could it be the motherboard or is it a defect in the ram or what should I check/try?