LENOVO ThinkPad T15g Gen 1 RAM upgrade specifications
Lenovo ThinkPad T Series T15g Gen 1 specifications support DDR4-SDRAM memory upgrades. The laptop contains 4x SO-DIMM slots compatible with DDR4 modules operating at 2933 MHz frequency. Maximum memory capacity reaches 128 GB total RAM. The SO-DIMM form factor enables straightforward memory expansion, allowing users to upgrade existing memory modules for enhanced system performance. Specifications verify compatibility with standard DDR4-SDRAM memory upgrades within stated capacity limitations.
Memory Upgrade Specifications
| Specification | Value |
|---|---|
| Memory slots | 4x SO-DIMM |
| Form factor | SO-DIMM |
| Memory type | DDR4-SDRAM |
| Frequency | 2933 MHz |
| Maximum RAM | 128 GB |
| Voltage | 1.2V |
| Number of pins | 260-pin |
| Interface | PC4 |
| PC Speed Rating | PC4-2933 (PC4-23464) |
| Bandwidth | 23.5 GB/s |
| Laptop Release date | 04 March 2022 |
Additional Notes
- The Lenovo ThinkPad T15g Gen 1 supports 4 independent memory channels via SO-DIMM slots, enabling symmetric dual-channel or quad-channel configurations depending on population pattern. Asymmetric population reduces effective bandwidth and increases latency due to channel imbalance.
- DDR4-2933 MHz specification indicates the platform operates below standard JEDEC DDR4-3200 speeds. Aftermarket DDR4-3200 modules may function but will downclock to 2933 MHz, negating performance gains from higher-rated memory and wasting investment in premium SKUs.
- The 128 GB ceiling requires installation of 32 GB SO-DIMM modules in all 4 slots. Single 16 GB modules will cap the system at 64 GB, and mixing 16 GB with 32 GB units will limit total capacity to the effective density of the smallest module repeated across all slots.
- SO-DIMM form factor constrains upgrades to notebook-class memory only. Desktop DDR4 UDIMM modules are physically incompatible and cannot be installed regardless of electrical compatibility or capacity matching.
- Thermal considerations apply to high-density SO-DIMM configurations. 4 active memory modules in a compact chassis may elevate memory controller temperatures and require verification of thermal throttling behavior under sustained workloads, particularly in docked configurations with restricted airflow.
- Factory warranty coverage for memory upgrades typically restricts to modules on the Lenovo Approved Memory List. Installing non-validated DDR4-2933 SO-DIMM units may void memory-related warranty claims.