Server Motherboard Comparison

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Form Factor (WxD, mm)
Form Factor
(WxD, mm)
E-ATX
304.8 x 335.2
E-ATX
304.8 x 335.2
CPU
CPU
AMD EPYC^™ 9005 Series Processors
AMD EPYC^™ 9004 Series Processors

Dual processor, cTDP up to 500W^[1]

^[1]To support 500W CPUs, please select verified fansinks from the "Optional parts" section and ensure all fan power connectors (4pin+3pin for each fan) are properly connected.

^[Note]If only 1 CPU is installed, some PCIe or memory functions might be unavailable.
AMD EPYC^™ 9005 Series Processors
AMD EPYC^™ 9004 Series Processors

Dual processor, cTDP up to 400W

^[Note]If only 1 CPU is installed, some PCIe or memory functions might be unavailable.
Socket
Socket
2 x LGA 6096
Socket SP5
2 x LGA 6096
Socket SP5
Chipset
Chipset
System on Chip
System on Chip
Memory
Memory
24 x DIMM slots
Support DDR5 RDIMM
12-Channel memory per processor

AMD EPYC^™ 9005:
Up to 6400 MT/s

AMD EPYC^™ 9004:
Up to 4800 MT/s
24 x DIMM slots
Support DDR5 RDIMM
12-Channel memory per processor

AMD EPYC^™ 9005:
Up to 6400 MT/s

AMD EPYC^™ 9004:
Up to 4800 MT/s
LAN
LAN
2 x 10Gb/s LAN (1 x Broadcom^® BCM57416)
- Support NCSI function

1 x 10/100/1000 Mbps Management LAN
2 x 10Gb/s LAN (1 x Broadcom^® BCM57416)
- Support NCSI function

1 x 10/100/1000 Mbps Management LAN
Video
Video
Integrated in ASPEED^® AST2600
- 1 x VGA port
Integrated in ASPEED^® AST2600
- 1 x VGA port
Audio
Audio
N/A
N/A
Storage Interface
Storage Interface
MCIO:
2 x MCIO 8i for 4 x Gen5 NVMe or 16 x SATA, from CPU_1

SlimSAS:
1 x SlimSAS 4i for 4 x SATA, from CPU_0

M.2:
1 x M.2 (2280/22110), PCIe Gen5 x4, from CPU_0
SlimSAS:
2 x SlimSAS 8i for 4 x Gen4 NVMe or 16 x SATA, from CPU_1
1 x SlimSAS 4i for 4 x SATA, from CPU_0

M.2:
1 x M.2 (2280/22110), PCIe Gen4 x4, from CPU_0
RAID
RAID
N/A
N/A
PCIe Expansion Slots
PCIe Expansion Slots
Slot_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

2 x MCIO 8i (Gen5 x8 or SATA), from CPU_1^[1][2]

^[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.
Slot_4: PCIe x16 (Gen4 x16), from CPU_0
Slot_3: PCIe x16 (Gen4 x16), from CPU_0
Slot_2: PCIe x16 (Gen4 x16), from CPU_1
Slot_1: PCIe x16 (Gen4 x16), from CPU_1

2 x SlimSAS 8i (Gen4 x8 or SATA), from CPU_1^[1]

^[1]The connector supports SATA by default. To enable the other option, please refer to the manual and adjust the settings in the BIOS.
Internal I/O
Internal I/O
1 x 24-pin ATX main power connector
2 x 8-pin ATX 12V power connectors
3 x 6-pin ATX 12V power connectors
2 x CPU fan headers (4pin)
2 x CPU fan headers (3pin)
4 x System fan headers
1 x USB 3.2 Gen1 x2 header
1 x M.2 slot
2 x MCIO 8i connectors
1 x SlimSAS 4i connector
1 x Front panel header
1 x Backplane board header
1 x PMBus connector
1 x IPMB connector
1 x TPM header
1 x 24-pin ATX main power connector
2 x 8-pin ATX 12V power connectors
3 x 6-pin ATX 12V power connectors
2 x CPU fan headers
4 x System fan headers
1 x USB 3.2 Gen1 x2 header
1 x M.2 slot
2 x SlimSAS 8i connectors
1 x SlimSAS 4i connector
1 x Front panel header
1 x Backplane board header
1 x PMBus connector
1 x IPMB connector
1 x TPM header
Rear I/O
Rear I/O
2 x USB 3.2 Gen1 ports (Type-A)
1 x VGA port
1 x Serial port
2 x RJ45 ports
1 x MLAN port
1 x ID button with LED
2 x USB 3.2 Gen1 ports (Type-A)
1 x VGA port
1 x Serial port
2 x RJ45 ports
1 x MLAN port
1 x ID button with LED
Security Modules
Security Modules
1 x TPM header with SPI interface
- Optional TPM2.0 kit: CTM012
1 x TPM header with SPI interface
- Optional TPM2.0 kit: CTM012
Board Management
Board Management
ASPEED^® AST2600 Baseboard Management Controller
GIGABYTE Management Console web interface
- Dashboard
- HTML5 KVM
- Sensor Monitor (Voltage, RPM, Temperature, CPU Status …etc.)
- Sensor Reading History Data
- FRU Information
- SEL Log in Linear Storage / Circular Storage Policy
- Hardware Inventory
- Fan Profile
- System Firewall
- Power Consumption
- Power Control
- Advanced power capping
- LDAP / AD / RADIUS Support
- Backup & Restore Configuration
- Remote BIOS/BMC/CPLD Update
- Event Log Filter
- User Management
- Media Redirection Settings
- PAM Order Settings
- SSL Settings
- SMTP Settings
ASPEED^® AST2600 Baseboard Management Controller
GIGABYTE Management Console web interface
- Dashboard
- HTML5 KVM
- Sensor Monitor (Voltage, RPM, Temperature, CPU Status …etc.)
- Sensor Reading History Data
- FRU Information
- SEL Log in Linear Storage / Circular Storage Policy
- Hardware Inventory
- Fan Profile
- System Firewall
- Power Consumption
- Power Control
- Advanced power capping
- LDAP / AD / RADIUS Support
- Backup & Restore Configuration
- Remote BIOS/BMC/CPLD Update
- Event Log Filter
- User Management
- Media Redirection Settings
- PAM Order Settings
- SSL Settings
- SMTP Settings
PSU Connectors
PSU Connectors
1 x 24-pin ATX main power connector
2 x 8-pin ATX 12V power connectors
3 x 6-pin ATX 12V power connectors
1 x 24-pin ATX main power connector
2 x 8-pin ATX 12V power connectors
3 x 6-pin ATX 12V power connectors
Operating Properties
Operating Properties
Operating temperature: 10°C to 40°C
Operating humidity: 8% to 80% (non-condensing)
Non-operating temperature: -40°C to 60°C
Non-operating humidity: 20% to 95% (non-condensing)
Operating temperature: 10°C to 40°C
Operating humidity: 8% to 80% (non-condensing)
Non-operating temperature: -40°C to 60°C
Non-operating humidity: 20% to 95% (non-condensing)
Retail Packaging Content
Retail Packaging Content
1 x MZ73-LM2
1 x I/O shield
1 x Quick start guide
1 x SlimSAS 4i to 4 x SATA cable (600mm)

Single Box dimensions: 409 x 355 x 78 mm
Carton dimensions: 729 x 415 x 432 mm
Quantity: 10 x single boxes in one carton
1 x MZ73-LM1
1 x I/O shield
1 x Quick start guide
1 x SlimSAS 4i to 4 x SATA cable (600mm)

Single Box dimensions: 409 x 355 x 78 mm
Carton dimensions: 729 x 415 x 432 mm
Quantity: 10 x single boxes in one carton
Bulk Packaging Content
Bulk Packaging Content
10 x MZ73-LM2
10 x I/O shields

Carton dimensions: 600 x 473 x 517 mm
10 x MZ73-LM1
10 x I/O shields

Carton dimensions: 600 x 473 x 517 mm
Reference Numbers
Reference Numbers
Retail: 9MZ73LM2MR-000-3*
Bulk: 9MZ73LM2NR-000-3*

Part Numbers:

- I/O shield: 12AIO-MZ73L1-00R
- SlimSAS 4i to 4 x SATA cable (600mm): 25CFM-600800-A4R

Optional parts:

- 500W CPU fansink: 25ST0-0Z1921-C1R
Retail: 9MZ73LM1MR-000-3*
Bulk: 9MZ73LM1NR-000-3*

Part Numbers:

- I/O shield: 12AIO-MZ73L0-00R
- SlimSAS 4i to 4 x SATA cable (600mm): 25CFM-600800-A4R

Optional parts:

- CPU fansink: 25ST0-0Z6022-C1R