Lenovo Legion Y740 (15-inch) - RAM Upgrade Guide

The Lenovo Legion Y740 (15-inch) laptop supports RAM upgrades with two available memory slots. It can handle a maximum of 32GB of memory. The type of RAM compatible with this laptop is DDR4 SDRAM, and it uses a SODIMM form factor, which is a compact memory module designed for laptops. For optimal performance, a RAM clock speed of 2666MHz (also referred to as PC4-21300) is recommended.
Lenovo Legion Y740 (15-inch) Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Lenovo Legion Y740 (15-inch) |
| 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 Y740 (15-inch) RAM
How much RAM can I put in my Legion Y740 15-inch?
You can max it out at 32GB total. It has 2 memory slots, so you'd need two 16GB sticks to hit that limit.
What type of RAM does the Y740 use?
It uses DDR4 SODIMM modules. These are the smaller laptop-style memory sticks, not the full-size desktop ones.
What speed RAM should I get for this laptop?
Go with 2666MHz (also called PC4-21300). That's the recommended speed and will give you the best performance without compatibility issues.
Can I mix different RAM sizes in the two slots?
Technically yes, but it's not ideal. You'll get better performance with matching sticks - like two 8GB or two 16GB modules rather than mixing sizes.
How do I know if I need a RAM upgrade?
Check your task manager while doing normal work. If you're consistently using 80% or more of your available RAM, an upgrade will help with multitasking and overall responsiveness.
Is upgrading RAM on this laptop difficult?
It's pretty straightforward on most Legion models. Usually just involves removing the bottom panel screws and popping out the old sticks. Just make sure to power down completely and remove the battery if possible.