Intel Xeon D-1531 socket: BGA 1667

What the Xeon D-1531 is

The Xeon D-1531 is a 6 core Broadwell-DE server SoC on BGA 1667 for edge and storage nodes. Intel set 6 cores and 12 threads at 2.2 GHz base with turbo to 2.7 GHz. Nine megabytes of Smart Cache cover virtualization at the edge. Power is 45 W on 14 nm from November 2015. Networking and I/O sit on the same package.

Six cores balance compute with low power for fanless leaning edge boxes. Turbo covers bursts while efficiency holds sustained throughput. The SoC integrates 10 GbE, USB and SATA beside the cores, cutting board parts. Single socket only designs keep costs down.

DDR4 and DDR3 with ECC over two channels to 128 GB feed edge VMs. ECC protects remote data. Buyers pick the D-1531 where a 6 core server SoC with networking must fit 45 W without a socketed Xeon E5 platform.

Socket and motherboard compatibility

The D-1531 solders to BGA 1667 at 37.5 × 37.5 mm with board cooling for 45 W. No socket and no later swap exist. Buyers choose memory and storage once around the soldered SoC. System vendors qualify boards with the integrated 10 GbE ports.

SoC design removes the chipset as a separate part. The LGA, PGA and BGA: CPU package types explained guide explains soldered server SoC tradeoffs. Check NIC and SATA counts, since I/O never changes after purchase.

Memory, PCIe and cooling

DDR4 to 2133 MHz and DDR3 with ECC over two channels to 128 GB suit edge virtualization. Registered and unbuffered options depend on the board. Two channels feed six cores well. ECC is required for remote reliability.

PCIe 2.0 and 3.0 with up to 32 lanes in x4, x8 and x16 splits serve NVMe, networking cards and accelerators. The SoC also carries integrated 10 GbE, USB 3.0 and SATA. A compact NVMe SSD suits edge caching.

Cooling uses board heatsinks with chassis airflow for 45 W continuous. No boxed cooler ships. Edge closets need ventilation more than headline turbo.

Upgrade paths

No CPU upgrade exists on soldered BGA-1667. Shoppers compare other Broadwell-DE SoCs on BGA 1667 with different core counts chosen at order time. Storage and memory are the only later changes where slots allow.

A move to newer Xeon D generations means a new board. The How to find your CPU socket type guide helps identify soldered edge servers.