I am so thrilled, after testing each memory slot, I found that my first chip was bad. It being a Kingston with life time warranty, I did not expect it would be bad, I can send it back for a new one. I also checked each slot, which means it isn't my motherboard, at least not yet, I am so relieved. I did not have the money for a new motherboard and all that would entail. My computer is running great, quick and responsive. Yeah !!!!