LENOVO ThinkPad T440s RAM upgrade specifications
The LENOVO ThinkPad T440s laptop features DDR3L-SDRAM memory with one SO-DIMM slot for RAM upgrades. The system supports a maximum of 12 GB total capacity, combining on-board memory with the expandable SO-DIMM slot. Memory specifications are rated at 1600 MHz frequency. Compatible RAM upgrades for the T series T440s model must match DDR3L-SDRAM specifications to ensure proper functionality and system stability.
Memory Upgrade Specifications
| Specification | Value |
|---|---|
| Memory slots | 1x SO-DIMM |
| Form factor | On-board + SO-DIMM |
| Memory type | DDR3L-SDRAM |
| Frequency | 1600 MHz |
| Maximum RAM | 12 GB |
| Voltage | 1.35V (Low Voltage) |
| Number of pins | 204-pin |
| Interface | PC3L |
| PC Speed Rating | PC3L-1600 (PC3L-12800) |
| Bandwidth | 12.8 GB/s |
| Laptop Release date | 30 January 2019 |
Additional Notes
- The presence of a single expansion slot means memory upgrades must involve replacing the existing module rather than adding a second one.
- The hardware architecture utilizes a combination of soldered memory and a removable module which forces an asymmetrical dual channel configuration.
- Memory modules must support low voltage 1.35V operation to prevent system instability or failure to boot associated with standard 1.5V DDR3 modules.
- The LENOVO ThinkPad T440s achieves its maximum capacity specifically through the installation of an 8 GB module in the expansion slot to complement the 4 GB fixed to the system board.
- Bandwidth is limited by the single channel ceiling once the capacity of the soldered memory is exceeded during high load tasks.
- Internal motherboard access is required for any memory maintenance necessitating the removal of the external battery and the base chassis cover.
- System performance in memory intensive applications is capped by the 1600 MHz bus speed regardless of the clock speed rating of the replacement module.