Acer Aspire 3 A315-51-38QP - RAM Upgrade Guide

The Acer A315-51-38QP 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 allowed in the user-accessible slot. It uses DDR4 SDRAM as the memory type, and the RAM comes in a SODIMM form factor, which is a compact design commonly used in laptops. For optimal performance, the recommended clock speed for the RAM is 2666MHz, also referred to as PC4-21300.
Acer Aspire 3 A315-51-38QP Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Acer Aspire 3 A315-51-38QP |
| 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 | 2666MHz (PC4-21300) |
| Voltage | Low - 1.2V |
| Number of pins | 260-pin |
FAQ about Acer Aspire 3 A315-51-38QP RAM
How much RAM can I actually add to this laptop?
You can add up to 16GB in the one accessible slot. The laptop has 4GB soldered that you can't touch, so with a 16GB stick you'll have 20GB total.
What type of RAM do I need to buy?
You need DDR4 SODIMM (the smaller laptop memory sticks). Make sure it's 2666MHz speed - that's also labeled as PC4-21300 on some RAM sticks.
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.
What happens if I install faster RAM like 3200MHz?
It'll work but will automatically slow down to 2666MHz to match what the laptop supports. You won't get any benefit from the higher speed.
Is it worth maxing out the RAM to 20GB?
Depends what you're doing. For basic use, 12GB total (4GB built-in + 8GB upgrade) is usually plenty. If you're into photo editing, running virtual machines, or heavy multitasking, then yeah, go for the full 16GB upgrade.
Will any DDR4 SODIMM work or do I need a specific brand?
Any standard DDR4 SODIMM should work fine as long as it matches the specs. Just make sure it's 2666MHz and not desktop RAM (which is physically larger and won't fit).