ASUS Vivobook X512UA-EJ458T RAM upgrade specifications
The ASUS Vivobook 15 Series X512UA-EJ458T features DDR4-SDRAM memory with upgrade specifications compatible with one SO-DIMM slot. The laptop contains on-board memory combined with one replaceable SO-DIMM slot configuration, supporting a maximum RAM capacity of 12 GB. The memory operates at 2400 MHz frequency. The upgrade slot accepts DDR4-SDRAM modules for expanding the device's total memory capacity beyond the factory-installed on-board configuration.
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 | 29 October 2019 |
Additional Notes
- The presence of a single expansion slot means memory upgrades require replacing the existing module rather than adding a second one.
- Dual channel performance is restricted to the capacity of the soldered memory chips because any capacity exceeding the on board amount operates in single channel mode.
- The ASUS Vivobook X512UA-EJ458T utilizes a hybrid memory architecture where 4 GB is permanently integrated into the motherboard.
- Installing a module with a frequency higher than 2400 MHz results in automatic downclocking to match the system bus limitation.
- Physical height constraints within the chassis necessitate the use of standard height SO DIMM modules to ensure the base cover closes without applying pressure to the motherboard.
- The 12 GB limit indicates the firmware recognizes a maximum of 8 GB in the expansion slot when combined with the baseline internal memory.
- Latency timings default to the slowest common denominator between the fixed internal silicon and the removable module.