Asus X556UB - RAM Upgrade Guide

The Asus X556UB 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 12GB, with up to 8GB possible in the user-accessible slot. It uses DDR3 SDRAM as the memory type, which comes in a SODIMM form factor, designed for compact devices like laptops. For optimal performance, the recommended clock speed for the RAM is 1600MHz, also referred to as PC3-12800.
Asus X556UB Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Asus X556UB |
| 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 X556UB RAM
How much RAM can I actually add to this laptop?
You can add up to 8GB in the single accessible slot. The laptop has 4GB soldered on the motherboard that can't be changed, plus one empty slot for upgrades. Maximum total is 12GB.
What type of RAM do I need to buy?
You need DDR3 SODIMM memory - that's the smaller laptop-sized RAM stick. Make sure it's DDR3, not DDR4 or DDR5, they're not compatible.
What speed RAM should I get?
Look for 1600MHz RAM, also labeled as PC3-12800. The laptop might work with faster speeds but it'll just run them at 1600MHz anyway, so no point paying extra.
Can I upgrade both RAM slots?
No, only one slot is accessible. The other slot has 4GB permanently soldered to the motherboard. Pretty annoying but common in budget laptops.
Is it worth upgrading from 4GB to 12GB?
Definitely. Going from 4GB to 12GB makes a huge difference for multitasking, browser tabs, and general responsiveness. It's probably the best upgrade you can do for this laptop.
Will any DDR3 SODIMM work?
Most should work fine as long as it's DDR3, SODIMM form factor, and 8GB or less. Stick with standard voltage (1.5V) modules, not the low voltage ones just to be safe.