WARNING! PLEASE READ THE ENTIRE POST BEFORE USING / DOING ANYTHING! BACKGROUND I recently (early 2016) acquired a 2013 Lenovo IdeaPad u410 Touch. It was not my first choice but still useful but I wanted to upgrade it to more recent tech and make it more usable as it is not the fastest CPU around, i.e. an i5-3337U dual core (quad thread) at 1.8GHz. http://ark.intel.com/products/72055/Intel-Core-i5-3337U-Processor-3M-Cache-up-to-2_70-GHz First thing I did was upgrade the BIOS to latest (as anyone would/should do really) version 65CN99WW (8/28/2014) available here: http://support.lenovo.com/au/en/products/laptops-and-netbooks/ideapad-u-series-laptops/ideapad-u410?beta=false I then added 2 x Kingston SO-DIMM KVR16LS11/8 1.35V (Low Voltage) 8G DDR3 1600 Notebook Ram SODIMM's despite the specs I could find all saying it would only take 8GB and it works fine with the 16GB as the Intel i5-3337U CPU (says 32GB) & Mobile Intel HM77 Express Chipset specifications suggest.