I just got a Lenovo G580 Core i5 laptop today. It was advertised to have 2 memory slots and have a max of 8GB of RAM supported( http://goo.gl/UaoYm ). I started it up and Lenovo Solution Center opened automaticly to run a "check-up". Under the "Memory" section of the hardware category, it said the computer had 4 memory slots and supported 32GB of RAM. So I took the back cover off and found 2 visible slots for memory. I then installed cpu-z and again, it said it had 4 available slots of memory. So I'm just wondering, how many slots my laptop has and how much memory it can support.