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Green extended ATX server motherboard with dual LGA 4189 sockets and sixteen DDR4 slots

TYAN

TYAN S7126GM2NRE server motherboard LGA 4189 dual Xeon 16 DDR4 3200

SKU CH-4DES-Q2RFQ MPN S7126GM2NRE

Dual-socket LGA 4189 board with 16 DDR4 3200 slots, 14 SATA ports and eight NVMe U.2 lanes

  • ProcessorSupports 3rd Gen Intel Xeon Scalable Processor
  • Form factorExtended ATX
  • CPU socketLGA 4189
  • Network speed10/100/1000 Mbit/s
  • Supported CPU count2
  • Processor detailsMax up to 220 W (TDP)
  • Supports dual 3rd Gen Intel Xeon Scalable processors up to 220W TDP each
  • 16 DDR4 3200 slots deliver up to 4096GB memory capacity with ECC
  • Eight-channel memory architecture maximises bandwidth for compute-intensive workloads
  • 14 SATA 6.0Gb/s ports plus eight NVMe lanes via four SFF-8654 connectors
  • Dual PCIe 4.0 x32 slots and OCP 2.0 mezzanine enable flexible high-speed expansion

Dual-socket LGA 4189 server board

The TYAN S7126GM2NRE is an extended ATX motherboard built for two 3rd Gen Intel Xeon Scalable processors. It delivers sixteen DDR4 3200 slots across eight channels and supports up to 4096 GB of LRDIMM or 3DS memory. The Intel C621A chipset manages I/O for demanding compute and storage workloads.

Suited for memory-intensive dual-CPU servers

This board fits deployments that need maximum DDR4 capacity and eight-channel bandwidth per socket. It is not for builds that require more than two processors, single-socket configurations, or systems limited to standard ATX dimensions. Buyers needing integrated 10 GbE or additional full-length PCIe 4.0 x16 slots beyond the two provided should evaluate other platforms.

Eight-channel DDR4 3200 with sixteen slots

The sixteen 288-pin slots operate in eight-channel mode per processor, enabling up to 2048 GB RDIMM or 4096 GB LRDIMM and 3DS modules. Matching this memory architecture is the single specification that determines whether the platform meets the application's bandwidth and capacity targets.

How it compares

Measured against everything we stock in Server & Workstation Boards, at today’s prices. Recalculated every night.

Price $576.99
Pricier than about 86% of the 776 comparable items (median $254.49).

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Specifications

Product
Brand nameTYAN
Model nameS7126GM2NRE
Processor
ProcessorSupports 3rd Gen Intel Xeon Scalable Processor
CPU socketLGA 4189
Supported CPU count2
Processor detailsMax up to 220 W (TDP)
ChipsetIntel C621A
Memory
DDR4 memory supportDDR4 3200
Max supported RAMUp to 2,048 GB RDIMM/ 4,096 GB LRDIMM/ 4,096 GB RDIMM 3DS/LRDIMM 3DS *Follow latest Intel DDR4 Memory POR
Memory channelsEight Channel
ECC supportYes
Storage
SATA ports14 x SATA 6.0Gb/s
SATA and RAID supportRAID 0/1/10/5 (Intel RSTe)
M.2 slotsConnector (M.2): (1) 22110/2280/2242 (by PCIe interface)
Connector (U.2): (4) SFF-8654 for (8) NVMe ports
Graphics
Onboard video chipAspeed AST2500
Connectivity
Network speed10/100/1000 Mbit/s
Ethernet controllerIntel I210-AT
Maximum network speed1 Gbit/s
Ports & slots
Number of DDR4 slots16 × 288-pin
PCIe 4.0 x16 slots(2) PCIe Gen.3/Gen.4 x32 slots (slot #6.5, #6)
PCIe 3.0 x16 slots(1) PCIe Gen.3 x16 OCP 2.0 mezzanine slot (conn.A+conn.B)
Size & build
Form factorExtended ATX
Width and length12 in × 13.1 in
Shipping weight2.72 kg
Package size381 × 356 × 127 mm
In the box
In the box(1) S7126 Motherboard
(1) Quick Installation Guide
(1) I/O Shield
(2) SATA signal cables

Questions about this item

How much memory can I actually install with two CPUs and all 16 DDR4 3200 slots populated?

With two processors the board supports up to 2,048 GB using RDIMMs or 4,096 GB using LRDIMM and 3DS modules, running across eight channels per CPU

What PCIe generation do the two x32 slots and the OCP mezzanine slot provide, and what does that limit for add-in cards?

The two x32 slots (slot 6.5 and slot 6) operate at PCIe Gen 3 or Gen 4, while the OCP 2.0 mezzanine slot is Gen 3 x16, capping throughput to those generations

What physical space and connectors does the board need for the U.2 NVMe ports and the M.2 slot?

The board uses four SFF-8654 connectors to deliver eight U.2 NVMe ports and one M.2 socket accepting 22110, 2280 or 2242 modules via PCIe

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