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Green M-ATX server motherboard with black slots, silver heatsinks, and rear I/O panel

WMtec

WMtec B660 D4 server motherboard LGA 1700 M-ATX DDR4 3200 64G

SKU CH-T5J7-2AB40

M-ATX server board with Intel B660 chipset, LGA 1700 socket, dual-channel DDR4 up to 64 GB, four SATA 3.0 ports, one PCIe 4.0/5.0 x16 slot, two M.2 22110 NVME slots, and 8-phase power delivery

  • CPU TypeDual Intel Xeon
  • Supports up to 64 GB DDR4 memory with dual-channel 3200 MHz speeds
  • Two M.2 22110 slots for NVME PCIe 4.0 x4 storage expansion
  • Four SATA 3.0 ports plus PCIe 4.0/5.0 x16 and PCIe 3.0 x4 slots for flexible add-in cards
  • 8-phase power delivery on a 4-layer M-ATX PCB measuring 235 by 195 mm
  • Rear I/O includes 4 USB 3.0, 2 USB 2.0, VGA, HDMI, DP, gigabit LAN and 3-port audio

Server Motherboard LGA 1700 M-ATX

This WMtec B660 D4 board fits the LGA 1700 socket in a 235 by 195 millimetre M-ATX layout. It targets builders assembling a compact server or workstation that needs dual-channel DDR4 memory and multiple high-speed storage options. The eight-phase power delivery and four-layer PCB aim at stable operation under sustained loads.

Suits single-socket builds with dual M.2 NVME

The two DDR4 slots accept up to 64 gigabytes at speeds up to 3200 megahertz depending on the installed processor. One PCI Express 4.0 or 5.0 x16 slot and one PCI Express 3.0 x4 slot handle add-in cards. Builders needing four memory channels, dual-processor support or more than two M.2 drives should choose a different platform.

Two DDR4 slots cap memory at 64 gigabytes

Maximum capacity is 64 gigabytes across two slots running at 2400, 2666, 2933 or 3200 megahertz with XMP support. Four SATA 3.0 ports and two M.2 22110 NVME interfaces provide storage connectivity. Rear I/O includes four USB 3.0 ports, two USB 2.0 ports, VGA, HDMI, DisplayPort, gigabit Ethernet and three analogue audio jacks driven by the ALC897 codec.

Highlights

  • Supports up to 64 GB DDR4 memory with dual-channel 3200 MHz speeds
  • Two M.2 22110 slots for NVME PCIe 4.0 x4 storage expansion
  • Four SATA 3.0 ports plus PCIe 4.0/5.0 x16 and PCIe 3.0 x4 slots for flexible add-in cards
  • 8-phase power delivery on a 4-layer M-ATX PCB measuring 235 by 195 mm
  • Rear I/O includes 4 USB 3.0, 2 USB 2.0, VGA, HDMI, DP, gigabit LAN and 3-port audio

Specifications

CPU TypeDual Intel Xeon

Questions about this item

How do I install the CPU into the LGA 1700 socket and which step is often missed?

Align the processor notches with the socket keys, lower it gently, close the retention lever fully, then connect the 8-pin CPU power cable — the extra power connector is the step most builders forget.

What maintenance will the board need later and when?

Dust the four-layer PCB and the eight-phase VRM heatsinks every few months; the only replaceable part is the BIOS coin cell, which should be swapped when the clock drifts after power-off.

Which limit appears first during sustained heavy loads on this board?

The eight-phase power delivery and four-layer PCB set the thermal ceiling, so VRM throttling will arrive before the dual-channel DDR4 3200 bandwidth or the PCIe 4.0 x16 slot saturate.

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