Guaranteed compatible upgrades for:
IBM/Lenovo ThinkPad T420
System Specifications
Maximum Memory:
- 8GB (Lenovo official)
- 16GB (Confirmed by many of our customers)
Expansion:
- 2 Sockets
Standard Memory:
- 2 GB (Removable) or
- 4 GB (Removable)
CPU/Chipset:
- Intel Core i7 Intel QM67
- Intel Core i5 Intel QM67
Bus Architecture:
- Flash - SDXC; SSD - SATA 2.5-inch 7mm; USB
Mfr's System P/N's:
- 4177-xxx; 4178-xxx; 4180-xxx; 4236-xxx
Upgrade Path:
- Virtually any configuration up to 16GB can be reached using any combination of 2,4 and 8GB modules.
Comments:
- Thanks to customer Gary M.
- from IBM GSA for confirming that 2x8GB modules are compatible in the i5 and i 7 versions of the Lenovo T420 machine, allowing a whopping 16GB installed RAM.
- All memory modules shown on this page are guaranteed compatible.