A-Tech 4GB Module for Lenovo G550 Laptop & Notebook Compatible DDR3/DDR3L PC3-12800 1600Mhz Memory Ram (ATMS278419B12034X1) at Amazon.com
Nokotion Kiwa7 La-5082p For Lenovo Ideapad G550 Laptop Motherboard Gm45 Ddr3 With G105m Gpu+cpu+heatsink - Laptop Motherboard - AliExpress
Lenovo Laptop Intel Core 2 Duo T6600 (2.20GHz) 3GB Memory 320GB HDD Intel GMA 4500MHD 15.6" Windows XP Professional preinstalled with Windows 7 Professional Upgrade Option G550(2958-A4U) - Newegg.com
For Lenovo G550 Laptop Motherboard Kiwa7 La-5082p Gl40 Ddr3 100% Test Ok - Laptop Motherboard - AliExpress
OFFTEK 2GB Replacement Memory RAM Upgrade for IBM-Lenovo G550 (2958-R6U) (DDR3-8500) Laptop Memory at Amazon.com
Newrecord For Lenovo Ideapad G550 La-5082p Laptop Pc Motherboard With Hdmi Port G105m Gpu Ddr3 Free Cpu Main Board Full Test - Laptop Motherboard - AliExpress
Lenovo G550 Laptop RAM Module - How To Remove, Replace or Upgrade - YouTube
Lenovo G550 Disassembly video, upgrade RAM & SSD, take a part, how to open - YouTube
Upgrading memory and hard drive on Lenovo G570 – Inside my laptop