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Gigabyte R181-T90 Barebone

2 x Cavium™ ThunderX2® CN9975 28-core ARM processors
8-Channel RDIMM DDR4, 24 x DIMMs
Dual 10Gb/s LAN ports (QLogic® QL41102)
1 x Dedicated management port
Onboard Broadcom® SAS3008 controller
8 x SAS or 10 x 2.5 inch SATAIII hot-swappable HDD/SSD bays
3 x PCIe Gen3 expansion slots
2 x OCP Gen3 x16 mezzanine slots
Aspeed® AST2500 remote management controller
Dual 1200W 80 PLUS Platinum redundant power supply
Total: $9,000.45
Total without tax: $9,000.45
Total discount:
Total Tax:
2 x Cavium™ ThunderX2® CN9975 ARM processors
64bit ARMv8 architecture
28 cores per processor, 2.0GHz
16nm technology
24 x DIMM slots
DDR4 memory supported only
8-channel memory architecture
RDIMM modules up to 64GB supported
1.2V modules: 2666/2400/2133 MHz

- NOTE: GIGABYTE recommends to follow the QVL when selecting memory modules to avoid any system compatibility issues
- NOTE: DDR4 2666 Mhz with 1DPC, DDR4 2400 with 2DPC
2 x 10Gb/s SFP+ LAN ports (QLogic® QL41102)
1 x 10/100/1000 management LAN port
Integrated in Aspeed® AST2500
2D Video Graphic Adapter with PCIe bus interface
1920x1200@60Hz 32bpp, DDR4 SDRAM
RAID 0/1/1E/10
Expansion Slots
Riser Card CRS1021:
- 2 x PCIe x8 slots (Gen3 x8), Low profile half-length

Riser Card CRS1015:
- 1 x PCIe x16 slot (Gen3 x16), Low profile half-length

2 x OCP mezzanine slots
- PCIe Gen3 x16
- Type1, P1, P2, P3, P4
Internal I/O
2 x Power supply connectors
2 x SlimSAS connectors
2 x SATA 7-pin connectors
1 x USB 3.0 header
1 x Front panel header
1 x HDD back plane board header
1 x PMBus connector
1 x IPMB connector
1 x Clear CMOS switch
1 x BIOS recovery switch
Rear I/O
2 x USB 3.0
1 x VGA
1 x COM (RJ45 type)
2 x SFP+
1 x MLAN
1 x ID button with LED
OS Supported
Compatible OS
RHEL 7.5 64bit (ARM64)

Ubuntu 18.04 (ARM64)


CentOS 7.5 64bit (ARM64)

Oracle Linux 7.4 (ARM64)
Board Management
Aspeed® AST2500 management controller
Avocent® MergePoint IPMI 2.0 web interface:
Network settings
Network security settings
Hardware information
Users control
Services settings
IPMI settings
Sessions control
LDAP settings
Power control
Fan profiles
Voltages, fans and temperatures monitoring
System event log
Events management (platform events, trap settings, email settings)
Serial Over LAN
vKVM & vMedia (HTML5)
Operating Properties
Operating temperature: 10°C to 35°C
Operating humidity: 8%-80% (non-condensing)
Non-operating temperature: -40°C to 60°C
Non-operating humidity: 20%-95% (non-condensing)
Packaging Dimensions
985 x 588 x 250 (mm)
Dimensions (WxHxD, mm)
438 x 43.5 x 730
Motherboard in Barebone
10 x 2.5 inch hot-swappable HDD bays
Onboard Broadcom® SAS3008 controller
Supports 8 x SAS / 2 x SATAIII or 10 x SATAIII hard drives

- NOTE: GIGABYTE recommends to follow the QVL when selecting hard drives to avoid any system compatibility issues
Front I/O
1 x USB 3.0
1 x Power button with LED
1 x ID button with LED
1 x Reset button
2 x LAN activity LEDs
1 x HDD activity LED
1 x System status LED
Backplane I/O
10 x SATA/SAS ports
Bandwidth: SATAIII 6Gb/s or SAS 12Gb/s per port
Power Supply
2 x 1200W redundant PSUs
80 PLUS Platinum

AC Input:
- 100-240V~/ 12-7A, 50-60Hz
DC Input:
- 240Vdc/ 6A

DC Output:
- Max 1000W/ 100-240V~
+12V/ 80.5A
+12Vsb/ 3A
- Max 1200W/ 200-240V~ or 240Vdc input
+12V/ 97A
+12Vsb/ 3A
Net Weight: 13.8 kg
Gross Weight: 21.55 kg
System Fans
8 x 40x40x56mm (23000rpm)
Part Numbers
Barebone package: 6NR181T90MR-00
Part Numbers:
- Motherboard: 9MT91FS1NR-00
- Rail kit: 25AE2-R18100-S2R
- CPU heatsink: 25ST1-353207-J1R
- Back plane board: 9CBP10A2NR-00
- Front panel board: 9CFP1000NR-00
- Power supply: 25EP0-212002-F3S
- RJ45 type COM cable: 25CR0-200400-Y4R (as an option)
- Riser card - CRS1021: 9CRS1021NR-00
- Riser card - CRS1015: 9CRS1015NR-00
Packaging Content
1 x R181-T90 system
1 x Rail kit