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Green E-ATX server motherboard, dual SP5 sockets, 24 DDR5 slots, four full-length PCIe 5.0 x16 slots, dual 10G RJ45 LAN, M.2 slot

GIGABYTE

GIGABYTE MZ73-LM0 Dual EPYC 9004/9005 Server Motherboard E-ATX 24 DDR5 4 PCIe 5.0 x16 2 10G LAN

SKU CH-RKQ1-3FA87 MPN MZ73-LM0

Dual-socket E-ATX board for AMD EPYC 9004 and 9005 processors with 24 DDR5 slots, four PCIe 5.0 x16 slots and two 10Gbps LAN ports

  • CPU Socket TypeSocket SP5
  • CPU TypeAMD EPYC 9004 Series / AMD EPYC 9005 Series
  • Number of Processor Support2
  • CPU FeaturesSupports Dual processor (not included), cTDP up to 400W [Not
  • North BridgeAMD WRX90
  • Memory Slots24 x DDR5 288-pin

Model MZ73-LM0

  • Dual AMD EPYC 9004/9005 processors deliver up to 400W cTDP
  • 24 DDR5 RDIMM slots across 12 channels per CPU for massive memory capacity
  • Four PCIe 5.0 x16 slots provide high-bandwidth expansion for accelerators
  • Dual 10GbE LAN via Broadcom BCM57416 enables fast network throughput
  • M.2 PCIe Gen4 x4 plus MCIO and SlimSAS connectors support flexible storage configurations

Dual-Socket EPYC Server Board

The GIGABYTE MZ73-LM0 is an E-ATX server motherboard built for dual AMD EPYC 9004 and 9005 series processors in Socket SP5. It delivers 24 DDR5 RDIMM slots across 12 memory channels per CPU, supporting up to 6400 MT/s with 9005 series and 4800 MT/s with 9004 series. Four PCIe 5.0 x16 slots and two 10Gbps LAN ports provide high-throughput connectivity for compute-intensive workloads.

Suited For And Not Suited For

This board suits deployments needing dual-socket density, 12-channel memory bandwidth per processor and PCIe 5.0 expansion for accelerators or fast storage. The cTDP support up to 400W per CPU fits high-performance thermal envelopes. Buyers who require a single-socket platform, lower power envelopes or fewer memory channels should evaluate other form factors.

Deciding Specification

The defining specification is the 24 DDR5 RDIMM slots organised as 12 channels per processor. This layout only reaches full bandwidth and capacity when both CPU sockets are populated. If the target system will run with one processor, memory channels and PCIe lanes from the second socket remain inactive, reducing total throughput.

I korthet

  • Dual AMD EPYC 9004/9005 processors deliver up to 400W cTDP
  • 24 DDR5 RDIMM slots across 12 channels per CPU for massive memory capacity
  • Four PCIe 5.0 x16 slots provide high-bandwidth expansion for accelerators
  • Dual 10GbE LAN via Broadcom BCM57416 enables fast network throughput
  • M.2 PCIe Gen4 x4 plus MCIO and SlimSAS connectors support flexible storage configurations

Specifikationer

BrandGIGABYTE
ModelMZ73-LM0
CPU Socket TypeSocket SP5
CPU TypeAMD EPYC 9004 Series / AMD EPYC 9005 Series
Number of Processor Support2
CPU FeaturesSupports Dual processor (not included), cTDP up to 400W
[Note] If only 1 CPU is installed, some PCIe or memory functions might be unavailable.
North BridgeAMD WRX90
Memory Slots24 x DDR5 288-pin
Memory StandardAMD EPYC 9005:
Up to 6400 MT/s
AMD EPYC 9004:
Up to 4800 MT/s
Channel Supported12-Channel memory per processor
RegisteredYes
PCI Express 5.0 x16Slot_4: PCIe x16 (Gen5 x16), from CPU_0
Slot_3: PCIe x16 (Gen5 x16), from CPU_0
Slot_2: PCIe x16 (Gen5 x16), from CPU_1
Slot_1: PCIe x16 (Gen5 x16), from CPU_1
Other Slots2 x MCIO 8i (Gen5 x8 or SATA), from CPU_1
[1] Please contact technical support for qualified cables to ensure Gen5 signal quality.
[2] The connector supports SATA by default. To enable the other option, please refer to the manual and adjust the settings in the BIOS.
SAS1 x SlimSAS 4i for 4 x SATA, from CPU_0
M.21 x M.2 (2280/22110), PCIe Gen4 x4, from CPU_0
Onboard Video ChipsetAspeed AST2600
LAN ChipsetBroadcom BCM57416
LAN Speed10Gbps
Max LAN Speed2 x 10Gbps
Back I/O Ports2 x USB 3.2 Gen1 ports (Type-A)
1 x VGA port
1 x COM port
2 x RJ45 ports
1 x MLAN port
1 x ID button with LED
Onboard USB1 x USB 3.2 Gen1 x2 header
Other Connectors1 x 24-pin ATX main power connector
2 x 8-pin ATX 12V power connectors
2 x 6-pin ATX 12V power connectors
2 x CPU fan headers
4 x System fan headers
1 x M.2 slot
2 x MCIO 8i connectors
1 x SlimSAS connector
1 x Front panel header
1 x Backplane board header
1 x PMBus connector
1 x IPMB connector
1 x TPM header
Form FactorExtended ATX
Dimensions (W x L)12.0" x 13.2"
Package Contents1 x MZ73-LM0
1 x I/O shield
1 x Quick start guide
1 x SlimSAS 4i to 4 x SATA 6Gb/s cable (600mm)
Fraktvikt2.31 kg
Paketstorlek413 × 358 × 79 mm

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Frågor om den här produkten

Does the MZ73-LM0 ship with processors, memory or cables, or must they be purchased separately?

The board is sold alone; dual EPYC 9004 or 9005 CPUs, 24 DDR5 RDIMMs and qualified MCIO Gen5 cables are not included.

Should I choose an EPYC 9004 or 9005 CPU for the highest memory speed on this motherboard?

EPYC 9005 supports up to 6400 MT/s DDR5 across 12 channels per socket, while EPYC 9004 tops out at 4800 MT/s.

What does the 400 W cTDP rating mean for cooling and power delivery in a dual-socket build?

Each socket can draw up to 400 W, so the platform must handle 800 W combined plus memory and add-in cards under full load.

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