Lenovo IdeaPad S540-14IWL - RAM Upgrade Guide
The Lenovo S540-14IWL laptop has two memory slots for RAM, but only one of these slots can be upgraded by the user. The maximum amount of memory the laptop can support is 20GB, with up to 16GB installable in the accessible slot. It uses DDR4 SDRAM as the memory type, which comes in a SODIMM format, a compact design suitable for laptops. For optimal performance, the recommended clock speed for the RAM is 2666MHz, often referred to as PC4-21300.
Lenovo IdeaPad S540-14IWL Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Lenovo IdeaPad S540-14IWL |
| Total memory slots | 2 (1 not upgradeable) |
| Maximum RAM | 20GB (up to 16GB in user accessible slot) |
| 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 IdeaPad S540-14IWL RAM
How many RAM slots does the S540-14IWL have?
It has 2 total slots, but only 1 is accessible for upgrades. The other slot has soldered memory that can't be removed.
What's the maximum RAM I can install?
You can add up to 16GB in the single upgradeable slot, giving you 20GB total when combined with the built-in 4GB.
What type of RAM do I need?
You'll need DDR4 SODIMM modules - the smaller laptop-sized sticks, not the full-size desktop ones.
What speed RAM should I get?
2666MHz (also labeled as PC4-21300) is the recommended speed for this laptop.
Can I upgrade both RAM slots?
No, only one slot is upgradeable. The other has permanent memory soldered to the motherboard.
Will faster RAM like 3200MHz work?
It might physically fit and work, but it'll run at 2666MHz anyway, so there's no benefit to buying faster memory.