I have a Lenovo Thinkpad T420 Core i5 2520M. What is the maximum memory I can have - 8 GB or 16 GB? - Quora
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Lenovo ThinkPad T420s 4174 - Intel Core i5 2520M / 2.5 GHz - vPro - Win 7 Pro 64-bit - HD Graphics 3000 - 4 GB RAM - 320 GB HDD - DVD-Writer - 14" 1600 x 900 (HD+) - Walmart.com
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Lenovo T420s Thinkpad, Intel i5, 4GB Ram, 300GB HDD, Windows 10, Refur – Townsville Computer Recyclers
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CMS 16GB (2X8GB) DDR3 10600 1333MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Lenovo® Thinkpad T420S 4170, 4171, 4173, 4174 - A13 at Amazon.com
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Lenovo ThinkPad T420s Configurations, Software, & Verdict | Business Laptop Reviews | Laptop Reviews | Laptop Mag
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Lenovo ThinkPad T420s Business Laptop, Intel Core i5-2nd Generation CPU, 8GB RAM, 320GB HDD, 14 inch Display, Windows 10 Pro
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Refurbished: Lenovo ThinkPad T420 14" Notebook with Intel Core i5-2520M 2.50 GHz (3.20 GHz Turbo), 4 GB RAM, 320 GB HDD, DVD-ROM, Windows 7 Professional COA Only - Newegg.com
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8GB Stick for IBM Lenovo ThinkPad T Series T420 T420i T420s T520 T520i. SO-DIMM DDR3 Non-ECC PC3-10600 1333MHz RAM Memory. Genuine A-Tech Brand.
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