ASUS Vivobook X512FA-EJ628T RAM upgrade specifications

ASUS X512FA-EJ628T ASUS X512FA-EJ628T ASUS X512FA-EJ628T ASUS X512FA-EJ628T ASUS X512FA-EJ628T

ASUS Vivobook 15 Series X512FA-EJ628T RAM upgrade specifications feature DDR4-SDRAM memory operating at 2400 MHz frequency. Laptop contains one SO-DIMM slot for memory upgrade, with maximum RAM capacity of 12 GB. Memory configuration includes on-board memory combined with SO-DIMM slot. Compatible upgrades require DDR4-SDRAM modules matching specified frequency for optimal performance and compatibility with existing memory configuration.

Memory Upgrade Specifications

SpecificationValue
Memory slots1x SO-DIMM
Form factorOn-board + SO-DIMM
Memory typeDDR4-SDRAM
Frequency2400 MHz
Maximum RAM12 GB
Voltage1.2V
Number of pins260-pin
InterfacePC4
PC Speed RatingPC4-2400 (PC4-19200)
Bandwidth19.2 GB/s
Laptop Release date23 September 2019

Additional Notes

  • The ASUS Vivobook X512FA-EJ628T contains soldered memory on the motherboard, which means only 1 of the 2 total memory modules can be replaced or expanded. The on-board portion is permanent and cannot be upgraded.
  • Upgrading to the 12 GB ceiling requires installing a single 8 GB SO-DIMM module, since the soldered portion accounts for 4 GB of the total capacity. Populating the slot with a larger module will not increase usable memory beyond this hard limit.
  • The DDR4-2400 specification operates at a reduced frequency compared to standard DDR4-3200 modules. Installing faster memory will downclock to 2400 MHz, generating no performance gain and incurring unnecessary cost. Matching the existing 2400 MHz specification prevents compatibility risk and ensures warranty-safe operation.
  • SO-DIMM compatibility is restricted to laptop-class modules with a 260-pin connector. Desktop DDR4 UDIMM modules (288-pin) will not physically fit the slot, and attempting installation risks damaging both the module and the motherboard connector.
  • The single upgrade slot creates a bandwidth limitation; adding memory does not increase the number of parallel data channels. Performance gains from additional capacity depend on workload type rather than memory speed or dual-channel architecture.