This item was obtained as junk. I don't have DDR4, so I can't confirm its operation. If you think you can fix it, please do. The LCD is cracked. The "ideapad 320" being introduced this time comes in various configurations, including processors like Celeron, Core i3/i5/i7, AMD A6/A9/A10/A12/FX/E2. Some models also offer Full HD (1,920 x 1,080 dots) displays, 1TB HDDs (though no SSD), and options for Microsoft Office Home & Business Premium plus Office 365 services. Furthermore, the specifications differ slightly between direct-sales models and mass-market models, resulting in a wide range of prices.