LENOVO IdeaPad ideapad S145-15AST RAM upgrade specifications
LENOVO IdeaPad S145-15AST laptop RAM upgrade specifications include DDR4-SDRAM memory compatible with single SO-DIMM slot configuration. Maximum memory capacity supported reaches 8 GB, operating at 2133 MHz frequency. The upgrade specifications detail SO-DIMM form factor compatibility for the IdeaPad S series model, enabling memory expansion to specifications rated at 8 GB total capacity. Memory slots available accommodate one SO-DIMM module for upgrade installation on the LENOVO ideapad S145-15AST.
Memory Upgrade Specifications
| Specification | Value |
|---|---|
| Memory slots | 1x SO-DIMM |
| Form factor | SO-DIMM |
| Memory type | DDR4-SDRAM |
| Frequency | 2133 MHz |
| Maximum RAM | 8 GB |
| Voltage | 1.2V |
| Number of pins | 260-pin |
| Interface | PC4 |
| PC Speed Rating | PC4-2133 (PC4-17064) |
| Bandwidth | 17.1 GB/s |
| Laptop Release date | 20 March 2019 |
Additional Notes
- The Lenovo IdeaPad S145-15AST contains a single memory slot, meaning any RAM upgrade requires complete replacement of the existing module rather than addition of a second stick.
- The DDR4-2133 specification indicates this system operates at older DDR4 generation speeds; newer DDR4 modules rated for 2400 MHz or higher will downclock to 2133 MHz compatibility, wasting performance potential on those faster components.
- The 8 GB maximum capacity ceiling creates a hard limit for memory-intensive workloads such as video editing, virtual machine hosting, or large dataset processing; no upgrade path exists beyond this threshold without replacing the entire system.
- SO-DIMM form factor compatibility is exclusive to laptop modules; desktop DDR4 UDIMM components cannot be installed, and any upgrade source must explicitly specify laptop memory to avoid incompatibility.
- Single-slot architecture prevents the performance benefit of dual-channel memory operation; bandwidth remains constrained to single-channel rates regardless of capacity upgrades.
- Warranty considerations typically permit RAM replacement without voiding coverage, provided the upgrade uses standard DDR4-SDRAM components and the original module is retained or properly documented.