MSI Modern 15 A11SBU-648MX RAM upgrade specifications
The MSI Modern 15 A11SBU-648MX laptop features two SO-DIMM memory slots supporting DDR4-SDRAM upgrades. The system supports maximum RAM capacity of 32 GB total, with compatible modules operating at 3200 MHz frequency. Current memory configuration and available upgrade capacity depend on factory-installed specifications. SO-DIMM form factor modules are required for compatible memory expansion in this laptop model.
Memory Upgrade Specifications
| Specification | Value |
|---|---|
| Memory slots | 2x SO-DIMM |
| Form factor | SO-DIMM |
| Memory type | DDR4-SDRAM |
| Frequency | 3200 MHz |
| Maximum RAM | 32 GB |
| Voltage | 1.2V |
| Number of pins | 260-pin |
| Interface | PC4 |
| PC Speed Rating | PC4-3200 (PC4-25600) |
| Bandwidth | 25.6 GB/s |
| Laptop Release date | 13 November 2021 |
Additional Notes
- Dual channel mode requires identical module capacities in both slots to maximize memory controller bandwidth.
- Physical access to the motherboard on the MSI Modern 15 A11SBU-648MX necessitates the removal of the entire bottom chassis cover which may involve piercing a factory seal sticker.
- The integrated memory controller will downclock any modules exceeding 3200 MHz to match the native system bus Speed.
- Expansion Beyond 32 GB is restricted by firmware limitations despite higher densities available in the SODIMM market.
- Latencies such as CL22 are standard for this frequency but mixing modules with different timings results in the system defaulting to the slowest shared profile.
- The 2 slot configuration implies that reaching the maximum capacity requires a 16 GB plus 16 GB setup rather than a single 32 GB module.
- Thermal dissipation for high performance memory relies on the internal airflow of the thin chassis as no dedicated heat spreaders fit within the narrow SODIMM clearance.