Acer Aspire 3 A315-51-39CG - RAM Upgrade Guide

The Acer A315-51-39CG laptop has a single memory slot for RAM upgrades. It can support a maximum memory capacity of 20GB. The type of memory used is DDR4 SDRAM, and it comes in the SODIMM format, which is a compact design suitable for laptops. For optimal performance, the recommended RAM clock speed is 2666MHz, also referred to as PC4-21300.
Acer Aspire 3 A315-51-39CG Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Acer Aspire 3 A315-51-39CG |
| Total memory slots | 1 |
| Maximum RAM | 20GB |
| 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 Acer Aspire 3 A315-51-39CG RAM
How much RAM can I put in this laptop?
Maximum is 20GB total. It's got one memory slot, and since it comes with 4GB soldered on the motherboard, you can add a 16GB stick to reach the max.
What type of memory do I need?
You need DDR4 SODIMM - that's the smaller laptop-sized memory stick, not the full-size desktop kind. Make sure it's DDR4, not the older DDR3.
What speed RAM should I get?
2666MHz is the recommended speed (also labeled as PC4-21300). You can use faster RAM if you find a good deal, but it'll just run at 2666MHz anyway.
Can I upgrade to 32GB?
No, the system maxes out at 20GB. Even if you put in a 32GB stick, it'll only recognize 20GB total (4GB soldered + 16GB from the stick).
Is the upgrade worth it?
If you're running multiple browser tabs, doing light photo editing, or multitasking a lot, jumping from 4GB to 20GB will make a huge difference. The system will feel much snappier and won't freeze up as often.
Do I need to match the existing RAM?
Not really, since the 4GB is soldered and can't be removed anyway. Just get a good 16GB DDR4 SODIMM stick at 2666MHz and you're set.