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Lenovo ThinkPad T420 Memory Upgrades ✓­ Guaranteed Compatible

Make & ModelLenovo ThinkPad T420
Total Memory Slots2
Maximum Memory16GB

It's easy to buy Lenovo ThinkPad T420 memory here.

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Have a question about your Lenovo ThinkPad T420 memory upgrade? Our technical support can help you with any question to ensure you get the best module option for your Lenovo ThinkPad T420 system.

100% Guaranteed
Compatible

Get proven Lenovo ThinkPad T420 memory upgrades here. We ship approved, certified and OEM qualified modules to ensure total Lenovo ThinkPad T420 system memory reliability.

Quick Advance
Replacement

Nothing is perfect. Sometimes things happen. If your Lenovo ThinkPad T420 memory upgrade fails at anytime–we will ship a replacement same day. We support your Lenovo ThinkPad T420 memory purchase long after the sale.

Meet the increasing demands of your applications with more Lenovo ThinkPad T420 memory.
Expand system performance with an upgrade at lower costs today!

DIMM Type    Speed    Configuration Guide    Lifetime WarrantyLifetime WarrantyLifetime WarrantyLifetime Warranty
Never worry. We support you long after the sale. If any module ever fails–we will replace at zero cost to you!

DIMM TYPE
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Made By

Showing all 10 results

Part # Part Number Made By Capacity Speed Form Factor Price Trend
03X6401
03X6401
Memory for Lenovo ThinkPad T420
 Original Replacement 1x 8GB DDR3-1333 SODIMM $ 44 Buy Now
55Y3718
55Y3718
Memory for Lenovo ThinkPad T420
 Original Replacement 1x 8GB DDR3-1333 SODIMM $ 44 Buy Now
55Y3711
55Y3711
Memory for Lenovo ThinkPad T420
 Original Replacement 1x 4GB DDR3-1333 SODIMM $ 14 Buy Now
55Y3717
55Y3717
Memory for Lenovo ThinkPad T420
 Original Replacement 1x 4GB DDR3-1333 SODIMM $ 14 Buy Now
64Y6652
64Y6652
Memory for Lenovo ThinkPad T420
 Original Replacement 1x 4GB DDR3-1333 SODIMM $ 14 Buy Now
M471B5273CH0-CH9
M471B5273CH0‐CH9
Memory for Lenovo ThinkPad T420
 SAMSUNG 1x 4GB DDR3-1333 SODIMM Request For Quote
M471B5273DH0-CH9
M471B5273DH0‐CH9
Memory for Lenovo ThinkPad T420
 SAMSUNG 1x 4GB DDR3-1333 SODIMM Request For Quote
M471B5273EB0-CH9
M471B5273EB0‐CH9
Memory for Lenovo ThinkPad T420
 SAMSUNG 1x 4GB DDR3-1333 SODIMM Request For Quote
HMT351S6BFR8C-H9
HMT351S6BFR8C‐H9
Memory for Lenovo ThinkPad T420
 SK HYNIX 1x 4GB DDR3-1333 SODIMM $ 14 Buy Now
HMT351S6CFR8C-H9
HMT351S6CFR8C‐H9
Memory for Lenovo ThinkPad T420
 SK HYNIX 1x 4GB DDR3-1333 SODIMM $ 14 Buy Now

Learn more about Lenovo ThinkPad T420 memory

What Lenovo ThinkPad T420 DIMM type is supported?

SODIMM

Why are there various DIMM types supported?

Factory configured T420 systems often have smaller, less expensive modules. As more memory is required different density and technologies are needed. DIMM type mixing is never recommended.

What Lenovo ThinkPad T420 memory speed is supported?

DDR3-1333

Why may there be various speeds of Lenovo ThinkPad T420 memory?

Some servers often have various configurations and versions. If you are unsure what you need, please refer to your T420 manual or data sheet. If you need tech support, please contact us.

General DIMM population guideline for Lenovo ThinkPad T420 upgrade to consider.

Some may or may not apply.

  • Install DIMMs starting furthest from the processor.
  • Do not install DIMMs if the corresponding processor is not installed.
  • If only one processor is installed in a two CPU system, only half of the DIMM slots are available.
  • To maximize performance, balance the total memory capacity between all installed processors.
  • It is not required, but it is recommended to load the channels similarly if possible.

Why are there so many Lenovo ThinkPad T420 upgrade options?

IT buyers come from all walks of life. Some purchase by OEM part number. Some purchase by original module part number. Our goal is to give you confidence when purchasing Lenovo ThinkPad T420 upgrades. All modules listed are qualified to work in your Lenovo ThinkPad T420.


 

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