Lenovo Legion Y540 - RAM Upgrade Guide

The Lenovo Legion Y540 laptop has two slots available for memory upgrades, allowing for a total capacity of up to 32GB. It uses DDR4 SDRAM as the memory type, which comes in a smaller form known as SODIMM, designed specifically for laptops. For optimal performance, it is suggested to use memory with a clock speed of 2666MHz, also referred to as PC4-21300.
Lenovo Legion Y540 Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Lenovo Legion Y540 |
| Total memory slots | 2 |
| Maximum RAM | 32GB |
| Memory type | DDR4 SDRAM |
| Form factor | SODIMM (Small Outline Dual Inline Memory Module) |
| Recommended RAM clock speed | 2666MHz (PC4-21300) |
| Voltage | Low - 1.2V |
| Number of pins | 260-pin |
FAQ about Lenovo Legion Y540 RAM
How much RAM can I put in a Legion Y540?
Maximum is 32GB total. You've got 2 slots to work with, so that's 16GB per slot if you want to max it out.
What kind of RAM does the Y540 take?
It uses DDR4 SODIMM - that's the smaller laptop memory sticks, not the full-size desktop ones. Make sure you get SODIMM or it won't fit.
What speed RAM should I get for the Y540?
2666MHz is the recommended speed. You might see it labeled as PC4-21300 - same thing. Faster RAM will work but will just run at 2666MHz anyway.
Can I mix different RAM sizes in my Y540?
Yeah you can mix sizes like 8GB + 16GB, but for best performance try to match them. Dual channel works better with matching pairs.
Do I need to remove the old RAM when upgrading?
Depends what you've got. If you have 2x4GB and want 16GB total, you'll need to replace at least one stick. Check what's installed first before buying.
Is upgrading the RAM on Y540 difficult?
Pretty straightforward - just need to remove the bottom panel. The RAM slots are usually easy to access once you're in there. Just be gentle with the clips.