Asus X456UJ - RAM Upgrade Guide

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The Asus X456UJ 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 small outline dual inline memory module (SODIMM) form factor. For optimal performance, the recommended clock speed for the RAM is 1600MHz, which corresponds to the PC3-12800 standard.

Asus X456UJ Memory Specifications & Maximum RAM Capacity

SpecificationValue
Laptop ModelAsus X456UJ
Total memory slots2 (1 not upgradeable)
Maximum RAM12GB (up to 8GB in user accessible slot)
Memory typeDDR3 SDRAM
Form factorSODIMM (Small Outline Dual Inline Memory Module)
Recommended RAM clock speed1600MHz (PC3-12800)
VoltageLow - 1.35V (DDR3L / PC3L)
Number of pins204-pin

FAQ about Asus X456UJ RAM

How much RAM can I add to this laptop?

You can add up to 8GB in the single accessible slot. The laptop maxes out at 12GB total - that's because one slot has 4GB soldered on that you can't change, plus your 8GB upgrade.

What type of RAM do I need to buy?

You need DDR3 SODIMM memory running at 1600MHz. Look for PC3-12800 on the label - that's just another way of saying 1600MHz.

Can I upgrade both RAM slots?

No, only one slot is accessible for upgrades. The other slot has memory permanently attached to the motherboard, so you're stuck with whatever came installed there.

Will faster RAM work in this laptop?

Faster RAM will physically fit and work, but it'll run at 1600MHz anyway. Save your money and just get 1600MHz modules since you won't see any speed benefit from faster ones.

Is it worth upgrading from 4GB to 12GB?

Definitely. Going from 4GB to 12GB is a huge jump - you'll notice much smoother multitasking, faster app switching, and better performance with multiple browser tabs open. It's one of the best bang-for-buck upgrades you can do.