Lenovo Thinkpad E590 - RAM Upgrade Guide

The Lenovo E590 laptop has two slots available for memory upgrades, allowing for a maximum capacity of 32GB. It uses DDR4 SDRAM as the memory type, which comes in the SODIMM form factor, a compact design suitable for laptops. For optimal performance, it is suggested to use RAM with a clock speed of 2666MHz, also referred to as PC4-21300.
Lenovo Thinkpad E590 Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Lenovo Thinkpad E590 |
| 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 Thinkpad E590 RAM
How much RAM can I put in my E590?
You can install up to 32GB total - that's 16GB per slot since you've got 2 slots to work with.
What type of RAM do I need for the E590?
You need DDR4 SODIMM modules - the laptop-sized ones, not the bigger desktop sticks. Make sure it's DDR4, not the older DDR3.
What speed RAM should I get?
2666MHz (also labeled as PC4-21300) is the recommended speed. You can technically use faster RAM but it'll just run at 2666MHz anyway, so save your money.
Can I mix different RAM sizes?
Yeah, you can do like 8GB + 16GB if you want. Just know that you'll lose dual-channel performance benefits when the sizes don't match, but it'll still work fine.
Do I need to remove the old RAM first?
Depends what's already in there. If both slots are full, you'll need to take out at least one stick. If you've got one slot empty, just pop the new one in there.
Will any DDR4 laptop RAM work?
As long as it's DDR4 SODIMM, you should be good. Just stick with standard voltage (1.2V) modules - some gaming RAM runs at higher voltages that might not play nice.