ASUS Vivobook X512UA-BQ639T RAM upgrade specifications
The ASUS Vivobook 15 Series X512UA-BQ639T features DDR4-SDRAM memory specifications compatible with upgrade configurations. RAM upgrade capacity is supported through 1x SO-DIMM slot, with maximum memory capacity reaching 12 GB. Memory specifications include 2400 MHz frequency operation. The laptop contains on-board memory combined with one SO-DIMM slot for additional upgrade compatibility. Current memory upgrade slots and maximum RAM capacity specifications are detailed for system configuration purposes.
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 | 21 September 2019 |
Additional Notes
- The ASUS Vivobook X512UA-BQ639T contains 8 GB of soldered memory that cannot be removed, leaving only 1 SO-DIMM slot available for user upgrades.
- Maximum addressable memory is capped at 12 GB total, meaning the single replaceable module cannot exceed 4 GB without exceeding the firmware limitation.
- DDR4-2400 MHz is the supported frequency; installing faster DDR4 modules will downclock to 2400 MHz, wasting the performance potential of higher-frequency memory.
- SO-DIMM form factor is mandatory for the upgrade slot; standard UDIMM memory will not physically fit in the notebook's memory compartment.
- Bandwidth limitation from 2400 MHz operation results in approximately 19.2 GB/s theoretical maximum memory throughput, which may become a bottleneck for memory-intensive workloads despite single-channel configuration of the expandable slot.
- The single-channel configuration created by upgrading the lone SO-DIMM slot (while 8 GB remains soldered) reduces effective bandwidth compared to dual-channel setups, limiting performance gains in applications sensitive to memory speed.
- Warranty coverage for memory upgrades typically remains valid when using manufacturer-approved DDR4-SO-DIMM modules within the 12 GB specification limit.