Asus VivoBook S451LN - RAM Upgrade Guide

The Asus VivoBook S451LN has two memory slots for RAM, but only one of these slots can be upgraded by the user. The laptop supports a maximum memory capacity of 12GB, with up to 8GB possible in the user-accessible slot. It uses DDR3 SDRAM as the memory type, which comes in a SODIMM format, a smaller design suited for laptops. For optimal performance, the recommended clock speed for the RAM is 1600MHz, often labeled as PC3-12800.
Asus VivoBook S451LN Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Asus VivoBook S451LN |
| Total memory slots | 2 (1 not upgradeable) |
| Maximum RAM | 12GB (up to 8GB in user accessible slot) |
| Memory type | DDR3 SDRAM |
| Form factor | SODIMM (Small Outline Dual Inline Memory Module) |
| Recommended RAM clock speed | 1600MHz (PC3-12800) |
| Voltage | Low - 1.35V (DDR3L / PC3L) |
| Number of pins | 204-pin |
FAQ about Asus VivoBook S451LN RAM
How much RAM can I add to my VivoBook S451LN?
You can add up to 8GB in the single accessible slot. The laptop has 4GB soldered on the motherboard that can't be changed, so with an 8GB stick you'll get 12GB total.
What type of RAM does the VivoBook S451LN use?
It uses DDR3 SODIMM modules - the smaller laptop-sized RAM sticks. Make sure to get DDR3, not DDR4 or DDR5, as they won't fit or work.
What speed RAM should I buy for the S451LN?
Get 1600MHz (also labeled as PC3-12800) DDR3 SODIMM. The laptop might work with faster RAM, but it'll just run at 1600MHz anyway, so no point spending extra.
Can I upgrade both RAM slots in the VivoBook S451LN?
No, only one slot is accessible for upgrades. The other slot has 4GB permanently soldered to the motherboard, so you're stuck with that.
Is it worth upgrading from 4GB to 12GB RAM?
Definitely. Going from 4GB to 12GB makes a huge difference for multitasking, running multiple browser tabs, and general system responsiveness. It's one of the best upgrades you can do for this laptop.