Intel Xeon E5-1607 v3 socket: LGA 2011-v3

What the Xeon E5-1607 v3 is

The Xeon E5-1607 v3 is a fixed clock Haswell-EP quad for single socket workstations on LGA 2011-v3. Intel set four cores and four threads at 3.1 GHz with no turbo and no Hyper-Threading. Ten megabytes of Smart Cache serve steady workstation loads. Power is 140 W on 22 nm from September 2014. Fixed behavior suits certified images where even clocks matter more than bursts.

A fixed 3.1 GHz rate keeps timing even across long runs without turbo variance. Four threads handle design apps with ECC protection. Large cache for a quad trims reloads in models. Professional graphics carry display, since no integrated GPU exists. Fast storage shapes project opens. Buyers pick the 1607 v3 where deterministic clocks beat peak speed.

DDR4 ECC over four channels feeds the socket with DMI to the companion. The mix is a workstation socket for labs that prize steady clocks with memory protection at 140 W.

Socket and motherboard compatibility

The E5-1607 v3 fits LGA 2011-v3 on C612 workstation boards for uniprocessor use. Firmware must list the v3 stepping. Check the vendor matrix for the minimum BIOS. Dual socket server boards accept it but target different memory maps.

ECC memory over four channels follows workstation support. The Socket vs chipset: what decides whether a CPU works guide is desktop focused, so use workstation manuals. Cooling needs a 140 W tower with strong airflow.

A six core on the same socket adds threads where parallel work grows. Confirm power delivery before moving between workstation SKUs.

Memory, PCIe and cooling

DDR4 ECC quad channel suits steady projects. Thirty two gigabytes covers design with NVMe. Matched sticks give bandwidth. Speed follows population per manual.

Forty PCIe lanes feed graphics plus fast storage. Workstation layouts wire x16 professional graphics with NVMe beside. Chipset lanes add USB and SATA. Manuals show U.2 sharing.

Tower 140 W cooling holds fixed 3.1 GHz desktop like loads. Mount pressure on the large package matters. Keep case airflow front to back during long sessions.

Upgrade paths

Within the socket the Intel Xeon E5-1650 v3 with six cores and 12 threads adds threads and turbo on similar boards. The Intel Core i7-5820K with six cores is an HEDT alternative without ECC. Both need platform checks.

Newer workstation sockets replace Grantley. The E5-1607 v3 covers fixed clock desks where four steady threads are wanted.