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Green extended ATX server motherboard, sixteen DDR5 slots, single LGA 4677 socket

GIGABYTE

GIGABYTE MS33-AR0 server motherboard, LGA 4677, 16 DDR5 slots, C741 chipset

SKU CH-G6QD-CNWE0 MPN MS33-AR0

Extended ATX server board with LGA 4677 socket, 16 DDR5 slots supporting 4 TB, and dual 10 GbE LAN

  • CPU Socket TypeLGA 4677
  • CPU Type4th Gen Intel Xeon Scalable / 5th Gen Intel Xeon Scalable /
  • Number of Processor Support1
  • CPU FeaturesSingle processor, TDP up to 350W
  • North BridgeIntel C741
  • Memory Slots16 x DDR5 288-pin
  • Supports 4th and 5th Gen Intel Xeon Scalable CPUs up to 350W TDP
  • 16 DDR5 288-pin slots deliver eight-channel memory up to 4TB
  • PCIe 5.0 x16 slots plus MCIO 8i connectors enable Gen5 GPU and NVMe expansion
  • Dual 10GbE BASE-T LAN ports with Intel X710-AT2 plus dedicated management port
  • 2 SlimSAS connectors provide 8 SATA 6.0Gb/s ports with RAID 0/1/10/5

Single-socket LGA 4677 server board

The GIGABYTE MS33-AR0 is an Extended ATX motherboard built around the Intel C741 chipset for 4th and 5th Generation Intel Xeon Scalable processors and Intel Xeon CPU Max series. It supports one CPU with a TDP up to 350W and provides sixteen 288-pin DDR5 slots in an eight-channel layout for up to 4TB of registered memory.

Thermals and power delivery for 350W CPU

The board is engineered to deliver power to a single processor rated up to 350W while maintaining stable operation across sixteen DDR5 DIMMs running at 5600 MT/s. Onboard Aspeed AST2600 graphics and a dedicated management port allow remote monitoring of temperatures and fan speeds without loading the main CPU.

Storage connectors and expansion layout

Two 10Gb/s BASE-T LAN ports driven by an Intel X710-AT2 controller handle high-throughput networking. Storage connects through two SATA 6.0Gb/s ports, two SlimSAS connectors for eight additional SATA 6Gb/s devices, and one M.2 M-key slot supporting 2280 and 22110 cards over PCIe Gen3 x4 from the PCH. Seven PCIe 5.0 x16 slots and two MCIO 8i connectors provide Gen5 x8 links for accelerators and NVMe drives. Builders needing more than two 10GbE ports or more than two native SATA ports from the chipset should plan for add-in cards.

Highlights

  • Supports 4th and 5th Gen Intel Xeon Scalable CPUs up to 350W TDP
  • 16 DDR5 288-pin slots deliver eight-channel memory up to 4TB
  • PCIe 5.0 x16 slots plus MCIO 8i connectors enable Gen5 GPU and NVMe expansion
  • Dual 10GbE BASE-T LAN ports with Intel X710-AT2 plus dedicated management port
  • 2 SlimSAS connectors provide 8 SATA 6.0Gb/s ports with RAID 0/1/10/5

Specifications

BrandGIGABYTE
ModelMS33-AR0
CPU Socket TypeLGA 4677
CPU Type4th Gen Intel Xeon Scalable / 5th Gen Intel Xeon Scalable / Intel Xeon CPU Max
Number of Processor Support1
CPU FeaturesSingle processor, TDP up to 350W
North BridgeIntel C741
Memory Slots16 x DDR5 288-pin
Memory StandardDDR5 5600
Maximum Memory Supported4TB
Channel SupportedEight Channel
RegisteredYes
PCI Express 5.0 x16Slot_7: PCIe x16 (Gen5 x16) slot
Slot_6: PCIe x16 (Gen5 x16 or x8) slot, shared with Slot_5
Slot_5: PCIe x16 (Gen5 x8) slot
Slot_4: PCIe x16 (Gen5 x16 or x8) slot, shared with Slot_3
Slot_3: PCIe x16 (Gen5 x8) slot
Slot_2: PCIe x16 (Gen5 x16 or x8) slot, shared with Slot_1
Slot_1: PCIe x16 (Gen5 x8) slot
Other Slots2 x MCIO 8i (PCIe Gen5 x8) connectors
SATA2 x SATA 6.0Gb/s
SATA RAID0/1/10/5
SAS2 x SlimSAS connectors for 8 x SATA 6Gb/s
M.21 x M.2 slot:
- M-key
- PCIe Gen3 x4, from PCH
- Supports 2280/22110 cards
Onboard Video ChipsetAspeed AST2600
Number of LAN2
LAN ChipsetIntel X710-AT2
LAN Speed10Gbps
Max LAN Speed2 x 10Gbps
Back I/O Ports2 x USB 3.2 Gen1
1 x VGA
1 x COM
2 x RJ45
1 x MLAN
1 x ID button with LED
Onboard USB1 x USB 3.2 Gen1 header
Other Connectors1 x 24-pin ATX main power connector
2 x 8-pin ATX 12V power connectors
1 x 6-pin ATX 12V power connector
2 x CPU fan headers
5 x System fan headers
1 x M.2 slot
2 x MCIO 8i connectors
2 x SlimSAS connectors
2 x SATA connectors
1 x VROC connector
1 x Front panel header
1 x Backplane board header
1 x PMBus header
1 x IPMB header
1 x TPM header
Form FactorExtended ATX
Dimensions (W x L)12" x 13"
Package Contents1 x MS33-AR0
1 x I/O shield
1 x Quick start guide
3 x Carriers
1 x SlimSAS to 4 x SATA 6Gb/s cable (600mm)
Shipping weight1.88 kg
Package size409 × 355 × 78 mm

Questions about this item

How do I install the 4th or 5th Gen Intel Xeon Scalable processor into the LGA 4677 socket without bending pins?

Open the socket lever, align the processor triangle with the socket corner, lower the CPU gently without pressure, close the lever and torque the retention screws in a cross pattern to the specified value.

What maintenance will the Aspeed AST2600 management controller need during the board's service life?

The dedicated management port and BMC firmware should be updated periodically through the web interface to address security advisories and add feature support.

Which limit appears first when the single processor runs sustained workloads at its 350W TDP?

The voltage-regulator thermal limit on the 16-phase power delivery triggers throttling before the CPU hits its own thermal ceiling.

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