LENOVO ThinkPad A485 RAM upgrade specifications
The Lenovo ThinkPad A485 laptop supports DDR4-SDRAM memory upgrades with two SO-DIMM slots. Maximum compatible RAM capacity reaches 32 GB total, with each module operating at 2400 MHz frequency. The A485 specifications allow for memory expansion through standard SO-DIMM form factor modules, enabling users to upgrade from base configurations to maximum supported capacity across both available memory slots.
Memory Upgrade Specifications
| Specification | Value |
|---|---|
| Memory slots | 2x SO-DIMM |
| Form factor | SO-DIMM |
| Memory type | DDR4-SDRAM |
| Frequency | 2400 MHz |
| Maximum RAM | 32 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 | 08 July 2018 |
Additional Notes
- DDR4-2400 memory operates at a frequency 400 MHz below DDR4-3200 standard, reducing peak bandwidth to approximately 19.2 GB/s per channel and limiting sustained data transfer rates for memory-intensive workloads.
- 2 SO-DIMM slots permit installation of only 2 modules maximum, requiring 16 GB modules to reach the 32 GB ceiling; single-slot upgrades cannot exceed 16 GB per channel without full replacement of existing memory.
- SO-DIMM form factor requires compatible low-profile modules; standard UDIMM or RDIMM variants from consumer or server product lines will not physically fit the socket and cannot be force-installed without damaging the slot connector.
- The DDR4-2400 specification suggests this model predates the DDR4-2666/3200 standardization period; memory modules rated for higher frequencies will automatically downclock to 2400 MHz, eliminating performance gains from premium-tier purchases.
- Maximum addressable memory of 32 GB corresponds to systems using AMD Ryzen mobile processors or equivalent generation Intel mobile CPUs; architecture-level memory controller specifications hard-limit capacity regardless of physically installing larger modules.
- Populated SO-DIMM slots generate thermal density concerns in compact laptop chassis; upgrading to maximum capacity may increase memory controller and adjacent component temperatures, particularly under sustained multi-core workload conditions.
- Warranty preservation typically requires use of vendor-approved or industry-standard DDR4 SO-DIMM modules; third-party memory from non-vetted manufacturers may trigger coverage exclusions for hardware failure claims despite being technically compatible.