Lenovo IdeaPad S540 (14-inch / Intel) - RAM Upgrade Guide
The Lenovo S540 (14-inch, Intel version) has two memory slots for RAM, but only one of these can be upgraded by the user. The laptop supports a maximum memory capacity of 20GB, with up to 16GB available in the user-accessible slot. It uses DDR4 SDRAM as the memory type, which comes in a small outline dual inline memory module (SODIMM) format. For optimal performance, a RAM clock speed of 2400MHz (also referred to as PC4-19200) is recommended.
Lenovo IdeaPad S540 (14-inch / Intel) Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Lenovo IdeaPad S540 (14-inch / Intel) |
| 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 | 2400MHz (PC4-19200) |
| Voltage | Low - 1.2V |
| Number of pins | 260-pin |
FAQ about Lenovo IdeaPad S540 (14-inch / Intel) RAM
How much RAM can I add to my S540 14-inch Intel model?
You can add up to 16GB in the single accessible slot. The laptop comes with 4GB soldered that can't be changed, so maximum total is 20GB.
What type of RAM do I need for the S540?
You need DDR4 SODIMM memory - that's the smaller laptop-sized RAM stick. Make sure it's 2400MHz speed (also called PC4-19200).
Can I upgrade both RAM slots?
No, only one slot is accessible for upgrades. The other slot has soldered memory that's permanently attached to the motherboard.
Will faster RAM like 2666MHz or 3200MHz work?
It'll work but will automatically slow down to 2400MHz to match the system's maximum supported speed. Save money and just get 2400MHz.
Is it worth maxing out the RAM to 20GB total?
Depends on your usage. For basic tasks, 8-12GB total is plenty. If you're doing heavy multitasking, video editing, or running VMs, then yes, go for the full 16GB upgrade to hit 20GB total.