CMS 8GB (1X8GB) DDR4 19200 2400MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Lenovo® IdeaPad 310-14ISK, IdeaPad 310-15ABR, IdeaPad 320- 15ISK - C106 at Amazon.com
For Lenovo Ideapad 320 15ISK Laptop Motherboard CPU:I3 6006U VGA 2G 4GB RAM Number NM B242 FRU 5B20N86794 From Yycpcs, $126.99 | DHgate.Com
Lenovo IdeaPad 320-15, 320E, 320-15ISK, 320-15IAP how to upgrade memory, how to replace RAM - YouTube
For Lenovo 320-15isk 520-15ikb 320-17ikb Notebook Motherboard Dg521 Nm-b241 With 4415u I3 I5 I7 6th Gen 7th Gen Cpu 4g-ram - Laptop Motherboard - AliExpress
For Lenovo 320-15isk 520-15ikb 320-17ikb Notebook Motherboard Dg521 Nm-b241 With 4415u I3 I5 I7 6th Gen 7th Gen Cpu 4g-ram - Laptop Motherboard - AliExpress
5b20n86786 Dg421 Dg521 Dg721 Nm-b241 For Lenovo Ideapad 320-15isk Laotop Motherboard With I3-6006u Cpu 4g-ram 100% Fully Tested - Laptop Motherboard - AliExpress
5b20r16691 For Lenovo Ideapad 320-15isk 320-15ikb Laptop Motherboard Dg421 Dg521 Dg721 Nm-b241 With 4415u 4gb-ram Ddr4 100% Test - Laptop Motherboard - AliExpress