ASUS Vivobook X405UQ-BV240T RAM upgrade specifications
ASUS Vivobook 14 Series X405UQ-BV240T supports DDR4-SDRAM memory upgrade through one SO-DIMM slot. Maximum RAM capacity reaches 24 GB with compatible DDR4-2133 MHz modules. Upgrade specifications indicate on-board memory combined with expandable SO-DIMM configuration. Compatible memory modules function at 2133 MHz frequency for optimal performance with specifications matching ASUS X405UQ-BV240T laptop requirements.
Memory Upgrade Specifications
| Specification | Value |
|---|---|
| Memory slots | 1x SO-DIMM |
| Form factor | On-board + SO-DIMM |
| Memory type | DDR4-SDRAM |
| Frequency | 2133 MHz |
| Maximum RAM | 24 GB |
| Voltage | 1.2V |
| Number of pins | 260-pin |
| Interface | PC4 |
| PC Speed Rating | PC4-2133 (PC4-17064) |
| Bandwidth | 17.1 GB/s |
| Laptop Release date | 18 August 2017 |
Additional Notes
- The presence of a single SO-DIMM slot alongside on-board memory indicates an asymmetrical dual-channel configuration where only a portion of the total capacity operates at peak bandwidth.
- Upgrading to a 16 GB module is the only viable path to reach the maximum supported architecture limit of 24 GB due to the fixed 8 GB soldered to the motherboard.
- Installing memory with clock speeds exceeding 2133 MHz results in automatic downclocking to match the hardcoded frequency of the soldered chips.
- Latency performance is dictated by the highest common denominator between the integrated memory bank and the removable module.
- Future memory failures on the soldered portion of the motherboard render the system dependent on the single expansion slot or necessitate a full logic board replacement.
- The hardware design restricts memory expansion to a single-stage upgrade process since no secondary slot exists to facilitate incremental capacity increases.
- Thermal dissipation requirements increase slightly when utilizing high-density 16 GB modules in the confined space of a 14 inch chassis.