Acer Aspire 5 A515-51G-84SN - RAM Upgrade Guide

The Acer A515-51G-84SN laptop comes with two memory slots for RAM, though only one of these slots can be upgraded by the user. The maximum amount of memory the device can support is 20GB, with up to 16GB possible in the user-accessible slot. It uses DDR4 SDRAM as its memory type, which is housed in a small outline dual inline memory module (SODIMM) format. For best performance, the recommended clock speed for the RAM is 2666MHz, also referred to as PC4-21300.
Acer Aspire 5 A515-51G-84SN Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Acer Aspire 5 A515-51G-84SN |
| 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 5 A515-51G-84SN RAM
What's the maximum RAM I can put in this laptop?
You can get up to 20GB total. The laptop has 4GB soldered that can't be changed, plus one open slot that takes up to 16GB.
How many RAM slots are available to upgrade?
Just one slot is accessible. The other slot has 4GB permanently attached to the motherboard.
What type of RAM do I need to buy?
You need DDR4 SODIMM memory - that's the smaller laptop-sized RAM stick. Make sure it's 2666MHz speed for best performance.
Can I mix different RAM speeds?
You can, but it'll run at the slower speed. Since the built-in 4GB is probably 2666MHz, stick with that speed for the upgrade.
Is 20GB a weird amount of RAM?
Yeah, it's unusual because of the 4GB soldered + 16GB upgrade combo. Most systems have matching pairs like 8+8 or 16+16, but this setup still works fine.
Will adding more RAM void my warranty?
Usually not - RAM upgrades are considered user-serviceable on most laptops. Check your warranty docs to be sure, but it's typically fine.