FUJITSU LIFEBOOK E557 RAM upgrade specifications
FUJITSU LIFEBOOK E Series model E557 supports DDR4-SDRAM memory upgrades with maximum capacity of 32 GB. The laptop features 2x SO-DIMM slots for memory expansion. Compatible RAM operates at 2133 MHz frequency using SO-DIMM form factor. Specifications enable users to upgrade memory from factory configuration to maximum supported capacity of 32 GB across dual memory slots.
Memory Upgrade Specifications
| Specification | Value |
|---|---|
| Memory slots | 2x SO-DIMM |
| Form factor | SO-DIMM |
| Memory type | DDR4-SDRAM |
| Frequency | 2133 MHz |
| Maximum RAM | 32 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 | 10 August 2017 |
Additional Notes
- Dual channel mode requires identical module densities across both slots to maximize memory bandwidth for the integrated graphics processor.
- Installation of memory modules with frequencies higher than 2133 MHz results in automatic downclocking to match the system bus limitation.
- The 32 GB threshold indicates support for 16 GB density per slot using unbuffered non-ECC modules.
- Maintenance of the internal hardware through the dedicated service door allows for memory expansion without breaching the main chassis seal.
- Physical clearance within the SO-DIMM sockets restricts upgrades to standard height modules and precludes the use of oversized heat spreaders.
- Compatibility is limited to 1.2V DDR4 modules because the chipset does not support older 1.35V or 1.5V legacy standards.
- Latencies default to the highest common denominator between the two installed sticks if timings are not matched.
- The absence of soldered memory on the motherboard ensures that the entire 32 GB capacity remains user replaceable in the event of a module failure.