Asus VivoBook X545FB - RAM Upgrade Guide
The Asus VivoBook X545FB has two memory slots for RAM, though only one of these can be upgraded by the user. The laptop supports a maximum memory capacity of 24GB, with the user-accessible slot allowing up to 16GB of additional memory. It uses DDR4 SDRAM as the memory type, which comes in the SODIMM form factor, designed for compact laptops. For optimal performance, the recommended clock speed for the RAM is 2666MHz, also referred to as PC4-21300.
Asus VivoBook X545FB Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Asus VivoBook X545FB |
| 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 VivoBook X545FB RAM
How much RAM can I add to my VivoBook X545FB?
You can add up to 16GB in the single upgradeable slot. The laptop comes with 8GB soldered that can't be changed, so maximum total is 24GB.
Why can't I upgrade both RAM slots?
One slot has permanently soldered memory (8GB) that's built into the motherboard. Only the second slot accepts removable RAM modules.
What type of RAM do I need to buy?
You need DDR4 SODIMM memory - the smaller laptop-sized modules, not desktop RAM. Make sure it's 2666MHz speed for best compatibility.
Will faster RAM like 3200MHz work?
It might physically fit and work, but it'll run at 2666MHz anyway since that's what the system supports. Save money and stick with 2666MHz modules.
Can I mix different RAM brands or speeds?
Since you can't change the soldered 8GB, you're already mixing. Adding any compatible DDR4 SODIMM should work fine, just know it'll all run at the slowest speed.
Is 24GB total RAM worth it or should I just add 8GB?
Depends on your use - 16GB total (8+8) handles most tasks fine. Go for 24GB (8+16) if you're doing heavy multitasking, video editing, or running virtual machines.