Intel C612 Chipset ((exclusive))
CPU0 (LGA 2011-3) <-- QPI/UPI --> CPU1 (optional) | DMI 2.0 (x4) | [C612 PCH] / | \ SATA USB PCIe 2.0 GbE MAC LPC/SPI
For legacy server maintenance, virtualization hosts, or budget workstation builds (using used Xeon v3/v4 CPUs), the C612 remains a cost-effective choice in 2026, though it has been fully superseded by C620-series chipsets with DMI 3.0 and PCIe 3.0 on the PCH. intel c612 chipset
– The FIVR on Haswell-EP CPUs plus C612 power sequencing requires strict BIOS/vBIOS compliance; unstable on desktop overclocking boards using this chipset (e.g., X99). CPU0 (LGA 2011-3) <-- QPI/UPI --> CPU1 (optional)
A total of 14 integrated USB links are split between 6 high-speed USB 3.0 ports and 8 USB 2.0 ports to accommodate local server management interfaces. | Feature | Detail | |---------|--------| | |
| Feature | Detail | |---------|--------| | | Xeon E5-1600 v3/v4, E5-2600 v3/v4, Core i7-5960X/6900K (limited) | | Socket | LGA 2011-3 | | Memory Support | DDR4 (up to 2400 MHz with v4 CPUs) | | Memory Channels | 4 channels per CPU (up to 2 DIMMs per channel) | | PCIe Support | Up to 40 PCIe 3.0 lanes from CPU; 8 PCIe 2.0 lanes from PCH | | SATA Ports | 10 x SATA 3 (6 Gb/s) | | USB Ports | 14 total: 6 x USB 3.0, 8 x USB 2.0 | | Integrated LAN | 2 x 10GbE or 4 x 1GbE (via MAC + external PHY) | | TDP | 6.5 W – 7.8 W (typical) | | Node Controller | Support for dual-socket (2P) and quad-socket (4P) via external node controllers |
+--------------------------------------------------------+ | Intel Xeon E5 v3 / v4 CPU | | (Up to 22 Cores, Quad-Channel DDR4 ECC Memory) | +--------------------------------------------------------+ | | DMI 2.0 (5 GT/s) v +--------------------------------------------------------+ | Intel C612 Chipset | | - 7W TDP - 32nm Lithography - Intel RSTe 4.0 | +--------------------------------------------------------+ | | | v v v +-----------------+ +-----------------+ +-----------------+ | 10x SATA 6 Gb/s | | 6x USB 3.0 | | 8x PCIe 2.0 | | (RAID 0,1,5,10) | | 8x USB 2.0 | | Lanes (Up/Down) | +-----------------+ +-----------------+ +-----------------+ Storage and I/O Connectivity
The C612 includes an integrated SATA controller supporting: