Hello I was hoping for some idea's on why my pc started locking up after I installed a new stick of memory I have ran a memory test to make sure i'm not getting any error's and there don't seem to be I have also checked the new stick with the old stick they are same speed so I figured I would take the new stick out and that is not helping I am still locking up it's usually when I am at sites like youtube but not allways I can be doing something as simple as a word document and it will but not as often anyone have any suggestions please and thank you