Corsair Vengeance 4GB (2 x 2GB) Dual Channel CMZ4GX3M2A1600C9
My Lenovo Ideapad 320 15IKB, has 8gb dual channel ram with 4gb integrated on motherboard and 4gb in external slot, the external slot ram is damaged and I'm looking to replace the
8Gb installed as Dual Channel but Windows says only 4gb is usable, why? | Tom's Hardware Forum
Corsair Vengeance Blue 8GB (2x 4GB) PC3-15000 1866MHz DDR3 Memory Kit for and Dual Channel Processors at Amazon.com