I have a Lenovo Thinkpad T420 Core i5 2520M. What is the maximum memory I can have - 8 GB or 16 GB? - Quora
![for Dell PowerEdge T310 T320 T410 T420 T610 T620 Server RAM 32GB 4Rx4 PC3L-10600R REG ECC 16GB DDR3 1333MHz 8G Registered Memory for Dell PowerEdge T310 T320 T410 T420 T610 T620 Server RAM 32GB 4Rx4 PC3L-10600R REG ECC 16GB DDR3 1333MHz 8G Registered Memory](https://ae01.alicdn.com/kf/HTB1wLAgelGE3KVjSZFhq6AkaFXap.jpg_640x640Q90.jpg_.webp)
for Dell PowerEdge T310 T320 T410 T420 T610 T620 Server RAM 32GB 4Rx4 PC3L-10600R REG ECC 16GB DDR3 1333MHz 8G Registered Memory
![16GB KIT (2 x 8GB) 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. at Amazon.com 16GB KIT (2 x 8GB) 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. at Amazon.com](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/71z2T6h7ikL._AC_UF894,1000_QL80_.jpg)
16GB KIT (2 x 8GB) 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. at Amazon.com
![Refurbished: Lenovo ThinkPad T420 - I5-2520 2.5GHz - 16GB RAM - 240gb SSD DVD-RW - 14" - Win 10 Pro - Newegg.com Refurbished: Lenovo ThinkPad T420 - I5-2520 2.5GHz - 16GB RAM - 240gb SSD DVD-RW - 14" - Win 10 Pro - Newegg.com](https://c1.neweggimages.com/productimage/nb640/A5WM_131829958951833738o3p5lL3Gev.jpg)
Refurbished: Lenovo ThinkPad T420 - I5-2520 2.5GHz - 16GB RAM - 240gb SSD DVD-RW - 14" - Win 10 Pro - Newegg.com
![parts-quick 16GB DDR3 Memory for Dell PowerEdge T420 Server 2Rx4 RDIMM 1600MHz LV Memory Module at Amazon.com parts-quick 16GB DDR3 Memory for Dell PowerEdge T420 Server 2Rx4 RDIMM 1600MHz LV Memory Module at Amazon.com](https://m.media-amazon.com/images/I/81DDT+6BbRL._AC_UF894,1000_QL80_.jpg)
parts-quick 16GB DDR3 Memory for Dell PowerEdge T420 Server 2Rx4 RDIMM 1600MHz LV Memory Module at Amazon.com
![CMS 16GB (2X8GB) DDR3 10600 1333MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Lenovo® Thinkpad T420 4177, 4178, 4180, 4236 Series - A13 at Amazon.com CMS 16GB (2X8GB) DDR3 10600 1333MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Lenovo® Thinkpad T420 4177, 4178, 4180, 4236 Series - A13 at Amazon.com](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/71eVw9HLcEL.jpg)
CMS 16GB (2X8GB) DDR3 10600 1333MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Lenovo® Thinkpad T420 4177, 4178, 4180, 4236 Series - A13 at Amazon.com
![USED Lenovo Black 14.1" T420 Laptop PC with Intel Core i5 Processor, 4GB Memory, 320GB Hard Drive and Windows 10 Professional - Walmart.com USED Lenovo Black 14.1" T420 Laptop PC with Intel Core i5 Processor, 4GB Memory, 320GB Hard Drive and Windows 10 Professional - Walmart.com](https://i5.walmartimages.com/seo/USED-Lenovo-Black-14-1-T420-Laptop-PC-with-Intel-Core-i5-Processor-4GB-Memory-320GB-Hard-Drive-and-Windows-10-Professional_181780d1-8af2-49a4-b848-f1cf0abb005c_1.c40ea82c169b3735786edf5fb8affb39.jpeg)
USED Lenovo Black 14.1" T420 Laptop PC with Intel Core i5 Processor, 4GB Memory, 320GB Hard Drive and Windows 10 Professional - Walmart.com
![the t410s is a super device. I will upgrade the ram to 16gb. sometimes prefer the t410s over the t420 or t430 🙈 : r/thinkpad the t410s is a super device. I will upgrade the ram to 16gb. sometimes prefer the t410s over the t420 or t430 🙈 : r/thinkpad](https://i.redd.it/itbbbxx2t16b1.jpg)
the t410s is a super device. I will upgrade the ram to 16gb. sometimes prefer the t410s over the t420 or t430 🙈 : r/thinkpad
![T410 T420 T510 T610 T710 T810 T910 Server Memory 8G 1333MHz REG RAM Fast Ship High Quality - AliExpress T410 T420 T510 T610 T710 T810 T910 Server Memory 8G 1333MHz REG RAM Fast Ship High Quality - AliExpress](https://ae01.alicdn.com/kf/S18cf5b161bc64b5e99d174e776edbd49u/T410-T420-T510-T610-T710-T810-T910-Server-Memory-8G-1333MHz-REG-RAM-Fast-Ship-High.jpg)
T410 T420 T510 T610 T710 T810 T910 Server Memory 8G 1333MHz REG RAM Fast Ship High Quality - AliExpress
![16GB 2X8GB Memory RAM for Dell PowerEdge T420 240pin PC3-10600 1333MHz DDR3 ECC Registered RDIMM Black Diamond Memory Module Upgrade - Walmart.com 16GB 2X8GB Memory RAM for Dell PowerEdge T420 240pin PC3-10600 1333MHz DDR3 ECC Registered RDIMM Black Diamond Memory Module Upgrade - Walmart.com](https://i5.walmartimages.com/asr/8878fad2-9cbb-4052-9c5b-36d53b7d08a7_1.07de9e3d5b0760769440bea509f09133.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
16GB 2X8GB Memory RAM for Dell PowerEdge T420 240pin PC3-10600 1333MHz DDR3 ECC Registered RDIMM Black Diamond Memory Module Upgrade - Walmart.com
![Refurbed this T420 for a local DJ, 16GB+512GB SSD and a fresh copy of Windows 11. Good to go for another 10 years! : r/thinkpad Refurbed this T420 for a local DJ, 16GB+512GB SSD and a fresh copy of Windows 11. Good to go for another 10 years! : r/thinkpad](https://preview.redd.it/refurbed-this-t420-for-a-local-dj-16gb-512gb-ssd-and-a-v0-e17shw8ls82a1.jpg?width=3072&format=pjpg&auto=webp&s=31e59f6b42d63fa6d1c3b755ae26dfd929a25933)
Refurbed this T420 for a local DJ, 16GB+512GB SSD and a fresh copy of Windows 11. Good to go for another 10 years! : r/thinkpad
![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 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](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/41t4mjQxVjL._AC_.jpg)