ACER Extensa EX215-31-C99B RAM upgrade specifications
The ACER Extensa 15 Series model EX215-31-C99B features DDR4-SDRAM memory upgrade specifications. The laptop contains one SO-DIMM slot for RAM expansion, with a maximum capacity of 8 GB. The memory upgrade is compatible with DDR4-SDRAM modules operating at 2400 MHz frequency. The system utilizes a combination of on-board memory and removable SO-DIMM modules, allowing users to upgrade the existing memory configuration up to the specified maximum capacity for enhanced multitasking performance.
Memory Upgrade Specifications
| Specification | Value |
|---|---|
| Memory slots | 1x SO-DIMM |
| Form factor | On-board + SO-DIMM |
| Memory type | DDR4-SDRAM |
| Frequency | 2400 MHz |
| Maximum RAM | 8 GB |
| Voltage | 1.2V |
| Number of pins | 260-pin |
| Interface | PC4 |
| PC Speed Rating | PC4-2400 (PC4-19200) |
| Bandwidth | 19.2 GB/s |
| Laptop Release date | 10 April 2021 |
Additional Notes
- The Acer Extensa EX215-31-C99B contains soldered memory, meaning a portion of the 8 GB maximum capacity is permanently integrated into the motherboard and cannot be removed or replaced.
- Only 1 SO-DIMM slot is available for upgrades, restricting expansion to a single additional module and eliminating any redundancy or dual-channel configuration benefits.
- DDR4-2400 MHz represents an older memory standard; replacement modules meeting this exact frequency specification may require sourcing from legacy inventory, as current retail channels prioritize DDR4-3200 and DDR5 products.
- The 8 GB aggregate ceiling creates a hard performance limit for multitasking and memory-intensive applications; no upgrade path exists beyond this constraint.
- Installing an incompatible frequency (3200 MHz or higher) will trigger automatic downclocking to 2400 MHz, negating any speed advantage and wasting hardware capability.
- SO-DIMM modules are the only compatible form factor; standard DIMM or proprietary memory solutions will not physically fit the single expansion slot.
- Warranty coverage for memory upgrades depends on installation method; upgrades performed by authorized service centers retain full coverage, whereas self-installation may void memory-related claims depending on regional terms.