DELL PowerEdge R640 1U Rack Server Dual Xeon 6148 2.40 GHz 256GB 15.36TB Rail Kit

Dense 1U Compute Node

The Dell PowerEdge R640 is a 1U rack server built around dual Xeon Gold 6148 processors, each with 20 cores running at 2.40 GHz and able to reach 3.70 GHz turbo. It ships with 256 GB of DDR4 memory across eight 32 GB modules and 15.36 TB of raw storage on four 3.84 TB enterprise SATA SSDs. The platform targets virtualization, private cloud and high-performance computing workloads that demand dense, redundant compute in a single rack unit.

Rack And Power Readiness

Verify that your rack can accept a 1U rail kit and provides redundant power feeds for the hot-swappable supplies. The PERC H730 RAID controller with 2 GB non-volatile cache manages the four 2.5-inch drive bays; confirm the desired RAID level before deployment. Remote management runs through iDRAC9 Express, so ensure a dedicated management network path exists. Memory and drives arrive separately and require installation prior to first boot.

Integration And Expansion

Quad-port 1 GbE networking via the Broadcom BCM5720 rNDC handles production traffic while iDRAC9 provides out-of-band access. The 12 Gb/s RAID controller frees CPU cycles for application threads instead of parity calculations. Redundant power supplies allow module replacement without downtime, preserving service continuity. Internal bay population uses all four slots with the included SSDs; further storage expansion would require external enclosures or a different chassis.