Lenovo ThinkPad T450s - RAM Upgrade Guide
The Lenovo T450s laptop has two memory slots for RAM, but only one of them can be upgraded by the user. The maximum amount of memory the device can support is 12GB, with up to 8GB possible in the user-accessible slot. It uses DDR3 SDRAM as the memory type, designed in a small outline dual inline memory module (SODIMM) format. For optimal performance, the recommended clock speed for the RAM is 1600MHz, often labeled as PC3-12800.
Lenovo ThinkPad T450s Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Lenovo ThinkPad T450s |
| Total memory slots | 2 (1 not upgradeable) |
| Maximum RAM | 12GB (up to 8GB in user accessible slot) |
| Memory type | DDR3 SDRAM |
| Form factor | SODIMM (Small Outline Dual Inline Memory Module) |
| Recommended RAM clock speed | 1600MHz (PC3-12800) |
| Voltage | Low - 1.35V (DDR3L / PC3L) |
| Number of pins | 204-pin |
FAQ about Lenovo ThinkPad T450s RAM
How much RAM can I actually add to a T450s?
You can add up to 8GB in the one accessible slot. The other slot has 4GB soldered on, so max total is 12GB.
What type of RAM does the T450s take?
DDR3 SODIMM - the laptop kind, not desktop RAM. Needs to be 1600MHz speed (also called PC3-12800).
Can I upgrade both RAM slots?
No, only one slot is upgradeable. The other has 4GB permanently soldered to the motherboard.
Is it worth upgrading from 4GB to 12GB?
Definitely. Going from 4GB to 12GB makes a huge difference for multitasking, browser tabs, and general responsiveness.
Will faster RAM like 1866MHz work?
It'll work but run at 1600MHz anyway. The system only supports up to 1600MHz, so save money and stick with that speed.
Can I use DDR3L instead of regular DDR3?
Yes, DDR3L works fine and actually runs cooler since it uses less voltage. Either type works.