Asus X409UA - RAM Upgrade Guide
The Asus X409UA 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 24GB, with up to 16GB allowed in the slot that can be accessed for upgrades. It uses DDR4 SDRAM as its memory type, which comes in a small outline dual inline memory module (SODIMM) format. For best performance, the recommended clock speed for the RAM is 2666MHz, which corresponds to the PC4-21300 standard.
Asus X409UA Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Asus X409UA |
| Total memory slots | 2 (1 not upgradeable) |
| Maximum RAM | 24GB (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 Asus X409UA RAM
How many RAM slots does the Asus X409UA have?
It has 2 slots total, 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 have in this laptop?
24GB total - that's 8GB soldered on the motherboard plus up to 16GB in the upgradeable slot.
What type of RAM do I need to buy?
You need DDR4 SODIMM modules. Make sure it's SODIMM (the smaller laptop memory) not regular desktop RAM.
What speed RAM should I get?
2666MHz is the recommended speed. It's also labeled as PC4-21300 if you see that instead.
Can I upgrade both RAM slots?
No, only one slot can be upgraded. The other has memory permanently attached to the motherboard.
Will faster RAM like 3200MHz work?
It'll probably work but will run at 2666MHz anyway, so save your money and just get 2666MHz.
Can I add 32GB to the free slot?
No, the maximum for the upgradeable slot is 16GB. The system won't recognize more than that.