MSI Summit B15 A11M-058 RAM upgrade specifications
MSI B15 A11M-058 laptop features two SO-DIMM slots for DDR4-SDRAM memory upgrades. The Summit B15 series supports maximum memory capacity of 64 GB total. Compatible RAM operates at 3200 MHz frequency. Each SO-DIMM slot accepts modules up to 32 GB, enabling users to expand from factory configurations to the maximum specifications. The B15 A11M-058 model accepts standard DDR4-SDRAM upgrades matching the SO-DIMM form factor and supported frequency range.
Memory Upgrade Specifications
| Specification | Value |
|---|---|
| Memory slots | 2x SO-DIMM |
| Form factor | SO-DIMM |
| Memory type | DDR4-SDRAM |
| Frequency | 3200 MHz |
| Maximum RAM | 64 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 | 22 September 2020 |
Additional Notes
- The MSI Summit B15 A11M-058 supports dual-channel memory architecture, enabling theoretical bandwidth of approximately 51.2 GB/s at rated frequency, which becomes a performance ceiling for bandwidth-intensive applications when both slots are populated equally.
- DDR4-3200 compatibility requires verification of SPD programming on aftermarket modules, as some older-generation SO-DIMM sticks may default to lower frequencies and require manual BIOS adjustment to achieve rated speeds without stability degradation.
- The 64 GB maximum capacity represents a 2x multiplier over typical factory configurations, indicating significant thermal headroom exists within the system design since memory modules generate minimal heat relative to processor thermal output.
- SO-DIMM physical constraints impose a 30.35 mm maximum module height limitation; standard-height memory will fit, but high-profile heatspreader designs common in enthusiast DDR4 kits may contact internal shielding or create clearance issues during installation.
- Mixing memory speeds within 2 slots triggers downclocking of the entire subsystem to the slowest module's frequency, effectively throttling combined performance if asymmetric module specifications are installed.
- Factory warranty coverage typically remains valid when replacing memory with identical specifications (DDR4 SO-DIMM, 3200 MHz compliance), but mixing with non-OEM or overclocked modules may trigger warranty exclusions depending on MSI's service policy documentation.
- Single-slot population at 32 GB creates single-channel latency penalties of 5-10 nanoseconds compared to dual-channel operation, affecting CPU cache miss penalties in memory-bound workloads.