I have a Lenovo y560 with 8 gigs of ram, two 4 gig chips.When I go to accessories, then system tools and then to system information it says I have 4 gigs of ram. I installed CPU-Z and it shows 4 gigs in slots 1 and 2, and displays the make, model number, and serial number for each chip. I have taken the chips and swapped the slot locations and the computer still shows 4 gigs of ram. I installed a program that displays the percentage of ram and cpu being used and it isn't uncommon to be using over 90% of the ram.I am a novice but it seems like the computer isn't recognizing one of the chips. I have avast anti virus and iobit malware software installed. I really don't know what to do and would appreciate any help you can provide. Thank you!