DELL PowerEdge R640 4LFF 1x Xeon Silver 4108 256GB DDR4 No Drive rack server

PowerEdge R640 4LFF server

The Dell PowerEdge R640 is a 1U rack server built around a single Intel Xeon Silver 4108 processor running at 1.8 GHz with eight cores. It ships with 256 GB of DDR4 ECC registered memory installed across sixteen 16 GB modules. The chassis provides four 3.5-inch drive bays and includes a PERC H740P RAID controller. Integrated graphics and a dual-port 10 GbE 562T adapter handle display and network connectivity. Dual 750 W power supplies and iDRAC9 Enterprise remote management complete the platform.

Compatibility checklist

Verify that your rack provides a 1U slot with at least 36 inches of depth and 24 inches of width to accommodate the unit. Confirm that your facility can supply redundant power to two 750 W modules on the appropriate circuit. Ensure the operating system and applications you plan to run support the installed Xeon Silver 4108 instruction set and the DDR4 memory generation. No drives are included, so source SATA drives that match the 3.5-inch bay format and the PERC H740P controller requirements.

Build integration

The server occupies a single rack unit and frees up space compared with larger 2U or 4U alternatives. Four 3.5-inch bays allow local storage arrays without an external enclosure, while the PERC H740P controller offloads RAID processing from the CPU. Dual 10 GbE ports provide high-throughput networking without adding a discrete adapter. iDRAC9 Enterprise enables out-of-band management, reducing the need for a dedicated console or KVM switch in the rack. The second processor socket remains open for a future upgrade to a dual-CPU configuration.