Lenovo Thinkpad E490s - RAM Upgrade Guide
The Lenovo E490s laptop supports RAM upgrades with a total of two memory slots. It can handle a maximum of 32GB of memory. The type of RAM used is DDR4 SDRAM, and it comes in a SODIMM format, which is a compact design commonly used in laptops. For optimal performance, the recommended clock speed for the RAM is 2666MHz, also referred to as PC4-21300.
Lenovo Thinkpad E490s Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Lenovo Thinkpad E490s |
| 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 E490s RAM
How many memory slots does the Lenovo E490s have?
It has 2 memory slots total. Pretty standard for this laptop model.
What's the maximum RAM I can install in the E490s?
You can go up to 32GB total - that's 16GB per slot if you max it out.
What speed RAM should I get for my E490s?
The recommended speed is 2666MHz (also labeled as PC4-21300). The system might accept faster RAM but it'll just run at 2666MHz anyway.
Can I mix different RAM sizes in the E490s?
Yes, you can mix sizes like 8GB + 16GB, but for best performance it's better to use matching pairs (like 2x8GB or 2x16GB) to take advantage of dual-channel mode.