laptop lenovo
fee lnvnb161216
Built-in strap for 4 GB .decided to add more ,bought 6 GB 2420(or something) ,put the month worked properly.Then the laptop stopped to see a new level operatives .Took it to the service,said the wrong frequency ,you need above. Bought a new 8 GB ddr4 on 2660. Worked for a couple of months and ...