LENOVO IdeaPad C340 i3-8145U RAM upgrade specifications
Lenovo IdeaPad C340 i3-8145U laptop features DDR4-SDRAM memory upgrade specifications with one SO-DIMM slot supporting maximum capacity of 16 GB RAM. Memory operates at 2400 MHz frequency. Compatible SO-DIMM modules enable RAM upgrades to enhance system performance. Specifications detail single memory slot configuration with SO-DIMM form factor for the C340 series model.
Memory Upgrade Specifications
| Specification | Value |
|---|---|
| Memory slots | 1x SO-DIMM |
| Form factor | SO-DIMM |
| Memory type | DDR4-SDRAM |
| Frequency | 2400 MHz |
| Maximum RAM | 16 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 | 07 September 2019 |
Additional Notes
- The single SO-DIMM slot architecture prevents dual-channel memory operation, which typically reduces memory bandwidth by approximately 30% compared to systems with two populated slots.
- The 2400 MHz frequency specification indicates compatibility with DDR4-2400 modules, while higher frequency modules like DDR4-2666 or DDR4-3200 will downclock to match the system's supported speed.
- Upgrading to the 16 GB maximum requires complete replacement of any existing module rather than adding a second stick, potentially making the original RAM redundant.
- The SO-DIMM form factor requires laptop-specific memory modules measuring 67.6 mm in length, which differ from standard desktop DIMM modules and are not interchangeable.
- The processor's memory controller supports up to DDR4-2400 speeds, meaning the frequency limitation originates from the CPU architecture rather than the motherboard design.
- Systems with soldered RAM components alongside the SO-DIMM slot would further limit upgrade capacity, though this configuration is not indicated in the provided specifications.
- Memory upgrades on the Lenovo IdeaPad C340 i3-8145U typically require accessing the bottom panel, where the convertible hinge design may complicate disassembly compared to traditional clamshell laptops.
- Operating voltage must be DDR4 standard at 1.2V, as low-voltage DDR4L modules at 1.05V or DDR3L modules are incompatible with the chipset despite physical similarity.
- The single-channel configuration may create performance bottlenecks in graphics-intensive tasks, as the integrated UHD Graphics 620 shares system memory for video processing.