LENOVO ThinkPad P53s RAM upgrade specifications
The Lenovo ThinkPad P Series P53s laptop supports DDR4-SDRAM memory upgrades with one SO-DIMM slot available for expansion. The system features on-board memory combined with a single SO-DIMM slot configuration, allowing maximum RAM capacity of 48 GB. Memory operates at 2400 MHz frequency. Compatible upgrades utilize the SO-DIMM form factor for the expandable slot, providing users with specifications to select appropriate memory modules for this mobile workstation model.
Memory Upgrade Specifications
| Specification | Value |
|---|---|
| Memory slots | 1x SO-DIMM |
| Form factor | On-board + SO-DIMM |
| Memory type | DDR4-SDRAM |
| Frequency | 2400 MHz |
| Maximum RAM | 48 GB |
| Voltage | 1.2V |
| Number of pins | 260-pin |
| Interface | PC4 |
| PC Speed Rating | PC4-2400 (PC4-19200) |
| Bandwidth | 19.2 GB/s |
| Laptop Release date | 31 August 2019 |
Additional Notes
- The presence of a single expansion slot means memory upgrades must be performed by replacing the existing module rather than adding a second one.
- Dual-channel memory performance is restricted to the capacity of the soldered on-board chip because any capacity exceeding the on-board amount will operate in single-channel flex mode.
- The Lenovo ThinkPad P53s architecture requires matching the clock speed of the soldered memory to avoid downclocking or potential boot stability issues.
- Total system bandwidth is capped by the soldered memory frequency regardless of the speed rating of the installed SO-DIMM.
- Physical installation is limited to standard voltage modules because low-voltage requirements are typically hard-coded into the power management of on-board configurations.
- Maximum capacity configurations using 32 GB modules encounter specific density requirements that may require a BIOS update for full recognition of the additional address space.
- Replacing the single SO-DIMM module does not void the hardware warranty provided the internal chassis is accessed through the designated service door without damaging other internal components.