ASUS ROG GX551QS-HB212T RAM upgrade specifications
The ASUS ROG Zephyrus Duo 15 SE GX551QS-HB212T features DDR4-SDRAM memory with a maximum RAM capacity of 48 GB. The upgrade specifications include a single SO-DIMM slot compatible with 3200 MHz modules. The laptop contains on-board memory integrated with one expandable SO-DIMM slot for additional memory expansion. Compatible memory upgrades support DDR4 technology at specified frequency compatibility for the Zephyrus Duo 15 SE series. The memory configuration allows for upgrading the RAM capacity beyond the standard configuration through the available SO-DIMM upgrade slot.
Memory Upgrade Specifications
| Specification | Value |
|---|---|
| Memory slots | 1x SO-DIMM |
| Form factor | On-board + SO-DIMM |
| Memory type | DDR4-SDRAM |
| Frequency | 3200 MHz |
| Maximum RAM | 48 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 | 16 September 2021 |
Additional Notes
- The presence of on-board memory combined with a single SO-DIMM slot means that 16 GB of the total capacity is permanently soldered to the motherboard and cannot be replaced or repaired.
- Dual-channel memory performance is restricted to the capacity of the soldered module, resulting in asynchronous or flex mode operation if the expansion stick exceeds the size of the integrated memory.
- The maximum potential of 48 GB on the ASUS ROG Zephyrus Duo 15 SE GX551QS-HB212T requires the installation of a single 32 GB module in the available expansion socket.
- System stability relies on matching the latency timings of the non-removable memory because the BIOS will default to the slowest common denominator between the fixed and removable modules.
- Future-proofing is limited by the DDR4 architecture which prevents the use of newer DDR5 standard modules due to physical notch placement and voltage differences.
- Internal access for memory replacement involves a significant disassembly process that may impact the thermal interface material if the cooling solution is shared across the RAM area.