MSI Prestige PS42 8RB-073 RAM upgrade specifications

MSI PS42 8RB-073 MSI PS42 8RB-073 MSI PS42 8RB-073 MSI PS42 8RB-073 MSI PS42 8RB-073

The MSI Prestige PS series model PS42 8RB-073 contains one SO-DIMM slot for memory upgrade capabilities. The laptop supports DDR4-SDRAM memory operating at 2400 MHz frequencies. Maximum RAM capacity reaches 16 GB on the single available slot. Compatible memory upgrades utilize the SO-DIMM form factor specifications standard for portable computing devices. The PS42 8RB-073 upgrade slots accept DDR4 modules meeting the specified frequency and form factor requirements for expanded memory configurations.

Memory Upgrade Specifications

SpecificationValue
Memory slots1x SO-DIMM
Form factorSO-DIMM
Memory typeDDR4-SDRAM
Frequency2400 MHz
Maximum RAM16 GB
Voltage1.2V
Number of pins260-pin
InterfacePC4
PC Speed RatingPC4-2400 (PC4-19200)
Bandwidth19.2 GB/s
Laptop Release date08 July 2018

Additional Notes

  • The MSI Prestige PS42 8RB-073 has a single memory slot architecture, meaning one of two scenarios applies to any RAM upgrade: either the existing module must be removed and replaced entirely, or the system was shipped with onboard memory soldered to the motherboard that cannot be upgraded.
  • DDR4-2400 MHz represents an older memory standard. Newer DDR4 modules operate at 3200 MHz or higher. Installing faster modules will downclock automatically to 2400 MHz, eliminating any performance advantage from the higher-speed purchase.
  • The 16 GB ceiling implies a firmware or controller limitation rather than a physical slot constraint. Attempting to install a 32 GB SO-DIMM will not function, regardless of whether such modules are technically available.
  • Single-slot configuration creates a performance bottleneck compared to dual-channel architectures. The memory bandwidth ceiling is approximately 19.2 GB/s at 2400 MHz, sufficient for general productivity but restrictive for content creation workflows requiring sustained high throughput.
  • SO-DIMM form factor is non-negotiable; desktop DDR4 modules (UDIMM) are physically incompatible and cannot be forced into the socket without permanent damage to the module or slot.
  • Upgrading from factory configuration to the 16 GB maximum typically requires removing the original module. Warranty coverage depends on whether the manufacturer provides screwless SO-DIMM access or requires disassembly of sealed components.