Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sadly disappointed

I purchased this memory for my Dell Inspiron because Dell recommended it after some thorough testing. As another reviewer stated this memory will not run without constantly rebooting the PC.I replaced my existing memory with this new memory because my PC was running slow and diagnostics showed my memory did not pass all the tests. After replacing the old memory with the Corsair memory, the PC wouldn't stay up for one minute before crashing and I was receiving Memory Management & Non Page Fault error messages with the blue screens. Curiously, the Corsair memory passed the diagnostic tests. Now that my old memory is back in my PC, I've not had one blue screen.