LENOVO ThinkPad E485 RAM upgrade specifications
The Lenovo ThinkPad E485 supports DDR4-SDRAM memory upgrades with two SO-DIMM slots. The laptop's maximum RAM capacity is 32 GB total, accommodating compatible memory modules at 2400 MHz frequency. Specifications indicate the E series model accepts standard SO-DIMM form factor upgrades. Memory upgrade options for the E485 allow for configuration of compatible DDR4 modules within the stated slot and capacity parameters.
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 | 15 July 2018 |
Additional Notes
- Dual channel memory architecture is achievable only through the installation of 2 matched modules to maximize integrated Vega graphics performance.
- Bandwidth limitations of the 2400 MHz frequency cap serve as a hard bottleneck for Ryzen APU processing tasks regardless of higher rated module speeds.
- The 32 GB capacity ceiling restricts the system to 16 GB per slot utilizing high density non ECC unbuffered modules.
- Integration of mismatched latency timings results in the system defaulting to the slowest common denominator of the lower performing module.
- Lack of soldered memory provides a path for full hardware replacement without discarding existing base components should a single slot fail.
- Physical installation requires 260 pin modules designed specifically for mobile chipsets rather than desktop DIMM counterparts.
- Power consumption scales with the addition of a second module which slightly reduces battery runtime during high memory pressure operations.
- Firmware limitations on this specific ThinkPad series prevent the use of XMP profiles for overclocking beyond the native controller speed.