Asus X509FA - RAM Upgrade Guide

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The Asus X509FA laptop has a single memory slot available for RAM upgrades. It supports a maximum memory capacity of 20GB, with up to 16GB usable in the accessible slot. The type of memory used is DDR4 SDRAM, and it comes in a SODIMM format, which is a compact design commonly used in laptops. For optimal performance, the recommended RAM speed is 2666MHz, also referred to as PC4-21300.

Asus X509FA Memory Specifications & Maximum RAM Capacity

SpecificationValue
Laptop ModelAsus X509FA
Total memory slots1
Maximum RAM20GB (up to 16GB in user accessible slot)
Memory typeDDR4 SDRAM
Form factorSODIMM (Small Outline Dual Inline Memory Module)
Recommended RAM clock speed2666MHz (PC4-21300)
VoltageLow - 1.2V
Number of pins260-pin

FAQ about Asus X509FA RAM

How many RAM slots does the Asus X509FA have?

Just one slot that you can access. The laptop has some memory soldered to the motherboard that you can't change, plus this one upgradeable slot.

What's the maximum RAM I can install in the X509FA?

You can put up to 16GB in the available slot. The laptop comes with 4GB soldered memory, so with a 16GB stick installed, you'll have 20GB total.

What type of RAM does the X509FA use?

DDR4 SODIMM - that's the smaller laptop-sized memory sticks, not the full-size desktop ones. Make sure you get SODIMM specifically.

What speed RAM should I get for the X509FA?

2666MHz is the recommended speed. You might see it listed as PC4-21300 - same thing. Higher speeds will work but will just run at 2666MHz anyway.

Can I remove the existing RAM in my X509FA?

You can only remove/replace RAM in the one accessible slot. The laptop has 4GB permanently soldered to the motherboard that can't be removed or upgraded.

Will dual channel memory work on the X509FA?

Yes, if you add RAM to the empty slot, it'll run in dual channel mode with the soldered memory, which gives better performance than single channel.