MSI Prestige PS42 8RB-012AU RAM upgrade specifications

The MSI Prestige PS42 8RB-012AU features DDR4-SDRAM memory upgrade specifications. The laptop contains one SO-DIMM slot supporting a maximum RAM capacity of 16 GB. Compatible memory modules operate at 2400 MHz frequency. The upgrade slot accommodates standard SO-DIMM form factor memory modules. These specifications enable users to expand the existing memory configuration up to the maximum supported capacity through compatible DDR4 memory upgrades.

Additional Notes

• The single memory slot prevents dual-channel operation, limiting memory bandwidth to approximately 19.2 GB/s compared to the 38.4 GB/s achievable with two modules in dual-channel configuration.
• Adding or replacing RAM requires complete system disassembly to access the soldered base memory, as the single SO-DIMM slot functions as an expansion socket alongside onboard memory.
• The 16 GB maximum capacity constraint applies to the total system memory, including any soldered RAM already present on the motherboard, not just the expansion slot.
• DDR4-2400 operates at PC4-19200 specification, which will downclock higher-speed modules if installed, making premium DDR4-3200 or DDR4-2666 modules function at reduced performance.
• The memory controller locks to JEDEC standard 2400 MHz timing, preventing XMP profile activation even when compatible modules are installed.
• SO-DIMM modules exceeding 1.2V standard voltage may cause thermal throttling in the confined laptop chassis, as the cooling system is calibrated for standard DDR4 power consumption.
• Non-ECC unbuffered modules are required, as the mobile platform chipset does not support error-correcting code memory configurations.
• Memory replacement typically voids warranty seals on ultrabook chassis designs, requiring documentation of original configuration before disassembly.
• The 260-pin SO-DIMM interface standard physically prevents installation of desktop DIMM modules or older DDR3 SO-DIMM formats.