All the bad reviews from people who have incompatible laptops. I have a Toshiba Satellite C55Dt-5106 and previously purchased the same item from Crucial. My computer would randomly reboot and periodically (4-5 times a week) from the start would freeze with high pitched horrible screams. Apparently the RAM was too fast for my laptop so I found this guy from Kingston and found it was the slower 1333MHz which was my laptop's original RAM speed. My computer is now PERFECTLY FAST. Seriously, I've skyped, watched movies, played very memory intensive PC games, and no problem! All of these things caused my computer with Crucial RAM to reboot and/or freeze with that nightmarish scream. That's not to say Crucial's RAM sticks were bad. I ran memtest with no errors. It's just a laptop compatibility issue. Trust me, this Kingston RAM will do the trick when you research what works best for your laptop! Guys you deserve a higher rating!
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