Asus X409JA - RAM Upgrade Guide
The Asus X409JA 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 20GB, with up to 16GB usable in the accessible slot. 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 RAM speed is 2400MHz, also referred to as PC4-19200.
Asus X409JA Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Asus X409JA |
| 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 Asus X409JA RAM
How much RAM can I add to my X409JA laptop?
You can add up to 16GB in the single upgradeable slot. The laptop has 4GB soldered on the motherboard that can't be changed, so with a 16GB stick installed, you'll have 20GB total.
What type of RAM do I need for this laptop?
You need DDR4 SODIMM memory - that's the smaller laptop-sized RAM. Make sure it's 2400MHz speed (also called PC4-19200) for best compatibility.
Can I upgrade both RAM slots?
No, only one slot is upgradeable. The other slot has 4GB permanently soldered to the motherboard, so you're stuck with that. You can only add or replace RAM in the accessible slot.
Will faster RAM like 2666MHz or 3200MHz work?
It might work but will run at 2400MHz anyway since that's what the laptop supports. Save your money and just get 2400MHz RAM - there's no benefit to buying faster memory for this model.
What happens if I install 32GB RAM?
It won't work properly. The laptop maxes out at 20GB total (4GB soldered + 16GB in the upgrade slot). Installing anything larger than 16GB in the accessible slot is a waste - the system won't recognize it.