Acer Aspire 5 A515-51-86AQ - RAM Upgrade Guide
The Acer A515-51-86AQ laptop has two memory slots for RAM, though only one of them can be upgraded. The maximum amount of memory the laptop can support is 20GB. It uses DDR4 SDRAM as its memory type, and the RAM comes in a SODIMM format, which is a smaller type of memory module commonly used in laptops. For optimal performance, the recommended clock speed for the RAM is 2666MHz, also referred to as PC4-21300.
Acer Aspire 5 A515-51-86AQ Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Acer Aspire 5 A515-51-86AQ |
| Total memory slots | 2 (1 not upgradeable) |
| 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 5 A515-51-86AQ RAM
What kind of RAM does the Acer A515-51-86AQ take?
It uses DDR4 SODIMM (laptop memory). The recommended speed is 2666MHz, also known as PC4-21300. Make sure to get SODIMM, not regular desktop RAM - they're smaller modules designed for laptops.
How much RAM can I add to my A515-51-86AQ?
This model has a weird setup - one memory slot is soldered (not upgradeable) and one is available for upgrades. The maximum total is 20GB, so if you have 4GB soldered, you can add a 16GB stick. Check your current config first to figure out what's already installed.
Can I use faster RAM than 2666MHz?
You can install faster RAM like 3200MHz, but it'll just run at 2666MHz anyway. The system will downclock it to match what the processor supports. Save your money and stick with 2666MHz unless you find a faster stick for the same price.
Why can't I upgrade both RAM slots?
One slot has the memory chip soldered directly to the motherboard - pretty common in modern laptops to save space and cost. Only the second slot has a removable SODIMM socket. Kind of annoying but that's how they designed it.
Do I need to match the existing RAM?
Ideally yes - matching capacity and speed gives best performance. But since one slot is soldered, you can't perfectly match them anyway. Just get a 2666MHz DDR4 SODIMM in whatever capacity brings you to your target total. The system will handle the mismatch.