DELL PowerEdge R940 3U rack server 4× Xeon Gold 6148 2.4 GHz 20-core 128GB DDR4 2× 400GB SSD H730P

Four-socket Xeon Gold 6148 server

The Dell PowerEdge R940 packs four Intel Xeon Gold 6148 processors, each with 20 cores running at 2.4 GHz and a 3.7 GHz turbo frequency. A total of 128 GB of DDR4 registered ECC memory is installed across 48 slots, supporting up to 6 TB. The 3U rack chassis includes a PERC H730P controller with 2 GB cache, two 400 GB SATA SSDs, and a quad-port network daughter card providing two 1 GbE and two 10 Gb SFP+ connections.

Tool-less rails and hot-swap components simplify

Ready Rails and a front bezel ship with the unit, allowing rack mounting without tools. Both 1600 W platinum power supplies and the eight 2.5-inch drive bays are hot-swappable, so failed parts can be replaced while the system runs. The PERC H730P battery-backed cache protects in-flight writes during a power loss. iDRAC 9 Enterprise gives full remote console and lifecycle management over a dedicated network port.

Verify rack depth, power feeds

The 3U height fits standard racks, but overall chassis depth must match your cabinet clearance. Two separate high-voltage circuits are required for full power-supply redundancy. The X520/I350 card uses SFP+ transceivers for 10 Gb links; confirm you have compatible optics and patch cables. Memory expansion beyond 128 GB needs DDR4 registered ECC modules that match the installed 2666 MHz speed.