ASUS Vivobook X512FA-EJ917T RAM upgrade specifications
The ASUS Vivobook 15 Series X512FA-EJ917T supports DDR4-SDRAM memory upgrades. The laptop features one SO-DIMM slot compatible with maximum RAM capacity of 12 GB. Memory specifications include DDR4 operating at 2400 MHz frequency. The system incorporates on-board memory combined with expandable SO-DIMM slot configuration. Upgrade options allow users to enhance the laptop's memory capacity within the specified maximum threshold and compatibility parameters.
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 | 12 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 | 25 June 2019 |
Additional Notes
- The ASUS Vivobook X512FA-EJ917T features soldered memory that cannot be removed or replaced, establishing a permanent baseline capacity.
- Only a single SO-DIMM slot remains available for upgrades, limiting expansion to one additional module.
- The 12 GB maximum capacity indicates 4 GB soldered onboard paired with an 8 GB SO-DIMM module at full configuration.
- Dual-channel operation requires matching the soldered memory capacity, which activates only when installing a module of equal or greater density.
- Installing modules rated above 2400 MHz will result in automatic downclocking to match the fixed frequency specification.
- The hybrid memory architecture prevents symmetric dual-channel configuration, creating asymmetric bandwidth allocation across channels.
- Opening the chassis to access the SO-DIMM slot may void manufacturer warranty coverage depending on regional service policies.
- Maximum theoretical bandwidth reaches 38.4 GB/s when both channels operate in dual-channel mode with matched modules.
- Systems shipping with less than 12 GB installed leave headroom for a single aftermarket upgrade without component removal.
- SO-DIMM modules must conform to DDR4 voltage standards at 1.2V to ensure compatibility with the onboard power delivery system.
- Memory-intensive applications will encounter hard ceiling limitations at 12 GB total system memory regardless of module availability.
- The single-slot constraint eliminates future expandability once the maximum capacity threshold has been reached.