R281-3C1

2U
438 x 87.5 x 730

MR91-FS0

2nd Generation Intel^® Xeon^® Scalable Processors
Intel^® Xeon^® Scalable Processors
Dual processor, TDP up to 205W

Note: If only 1 CPU is installed, some PCIe or memory functions might be unavailable.

2 x LGA 3647
Socket P

Intel^® C621

24 x DIMM slots
DDR4 memory supported only
6-channel memory architecture
RDIMM up to 64GB supported
LRDIMM up to 128GB supported
Supports Intel^® Optane™ DC Persistent Memory (DCPMM)
1.2V modules: 2933/2666/2400/2133 MT/s

Maximum verified DCPMM configuration:

* Ambient temperature 35°C
* 2nd Generation Intel^® Xeon^® Scalable Processors 205W (Max.)
* DCPMM 256GB x12 pcs

DCPMM installation locations:
DIMM_P0_(A1, B1, C1)
DIMM_P0_(D1, E1, F1)
DIMM_P1_(G1, H1, I1)
DIMM_P1_(J1, K1, L1)

Note:
1. 2933 MT/s for 2nd Generation Intel^® Xeon^® Scalable Processors only.
2. Intel^® Optane™ DC Persistent Memory for 2nd Generation Intel^® Xeon^® Scalable Processors only.
3. The maximum number of DCPMM that can be installed is based on a maximum operating (ambient) temperature of 35°C.
4. To enquire about installing a greater number of DCPMM, please consult with your GIGABYTE technical or sales representative.

Rear side:
2 x 1Gb/s LAN ports (1 x Intel^® I350-AM2)
Support NCSI function

1 x 10/100/1000 Mbps Management LAN

Integrated in Aspeed^® AST2500
- 1 x VGA port

Front side:
12 x 3.5"/2.5" SATA/SAS hot-swappable bays

SAS card is required to enable the drives

Rear side:
2 x 2.5" SATA hot-swappable bays connected to onboard SATA ports#

#SATA supported only due to thermal concern.

LSI SAS35x24R expander
Bandwidth: SATA 6Gb/s or SAS 12Gb/s per port

Default configuration supports:
2 x SATA drives

Suggested 12Gb/s SAS cards:
CRA4448
CRA4548
CRAO438
CRAO558

2 x 7-pin SATA 6Gb/s with SATA DOM supported
By using pin_8 or external cable for power function

Depends on SAS add-in cards

Depends on SAS add-in cards

Riser Card CRS2131:
- 1 x PCIe x16 (Gen3 x16 or x8) FHHL slot, from CPU_0
- 1 x PCIe x8 (Gen3 x0 or x8) FHHL slot, from CPU_0
- 1 x PCIe x8 (Gen3 x8) FHHL slot, from CPU_0

Riser Card CRS2132:
- 1 x PCIe x16 (Gen3 x16 or x8) FHHL slot, from CPU_1
- 1 x PCIe x8 (Gen3 x0 or x8) FHHL slot, from CPU_1
- 1 x PCIe x8 (Gen3 x8) FHHL slot, from CPU_0

Riser Card CRS2124:
- 1 x PCIe x8 (Gen3 x0 or x8) low-profile slot, from CPU_1
- 1 x PCIe x16 (Gen3 x16 or x8) low-profile slot, from CPU_1

1 x OCP mezzanine slots with PCIe Gen3 x16 bandwidth (Type1, P1, P2, P3, P4, K2, K3), from CPU_0

1 x OCP mezzanine slots with PCIe Gen3 x16 bandwidth (Type1, P1, P2, P3, P4, K2, K3), from CPU_1

2 x Power supply connectors
4 x SlimSAS connectors
2 x SATA 7-pin connectors
2 x CPU fan headers
1 x USB 3.0 header
1 x TPM header
1 x VROC connector
1 x Front panel header
1 x Backplane board header
1 x IPMB connector
1 x Clear CMOS jumper
1 x BIOS recovery jumper

2 x USB 3.0
1 x Power button with LED
1 x ID button with LED
1 x NMI button
1 x Reset button
2 x LAN activity LEDs
1 x Storage activity LED
1 x System status LED

2 x USB 3.0
1 x VGA
1 x COM (RJ45)
2 x RJ45
1 x MLAN
1 x ID button with LED

Speed and bandwidth:
Front side - CBP21C0: SATA 6Gb/s or SAS 12Gb/s
Rear side - CBP2020: SATA 6Gb/s

1 x TPM header with LPC interface
- Optional TPM2.0 kit: CTM000

Dual 1200W 80 PLUS Platinum redundant power supply

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

DC Input: (Only for China)
- 240Vdc/ 6A

DC Output:
- Max 1000W/ 100-240V~
+12V/ 80.5A
+12Vsb/ 3A
- Max 1200W/ 200-240V~ or 240Vdc Input
+12V/ 97A
+12Vsb/ 3A

Aspeed^® AST2500 Baseboard 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)

For Skylake processors:

Citrix Xenserver 7.1.0 CU2 or later
Citrix Xenserver 7.4.0 or later
Citrix Hypervisor 8.0.0 or later

Red Hat Enterprise Linux 6.9 or later
Red Hat Enterprise Linux 7.4 or later
Red Hat Enterprise Linux 8.0 or later
Red Hat Enterprise Linux 9.0 or later

SUSE Linux Enterprise Server 11 SP4 or later
SUSE Linux Enterprise Server 12 SP2 or later
SUSE Linux Enterprise Server 15 or later

Ubuntu 16.04.1 LTS or later
Ubuntu 18.04 LTS or later
Ubuntu 20.04 LTS or later

VMware ESXi 6.0 Update3 or later
VMware ESXi 6.5 or later
VMware ESXi 6.7 or later
VMware ESXi 7.0 or later
VMware ESXi 8.0 or later

Windows Server 2012 R2 with Update
Windows Server 2016
Windows Server 2019

For Cascade Lake processors:

Citrix Xenserver 7.1.0 CU2 or later
Citrix Xenserver 7.5.0 or later
Citrix Hypervisor 8.0.0 or later

Red Hat Enterprise Linux 7.6 or later
Red Hat Enterprise Linux 8.0 or later
Red Hat Enterprise Linux 9.0 or later

SUSE Linux Enterprise Server 12 SP3 or later
SUSE Linux Enterprise Server 15 or later

Ubuntu 18.04 LTS or later
Ubuntu 20.04 LTS or later
Ubuntu 22.04 LTS or later

VMware ESXi 6.0 Update3 or later
VMware ESXi 6.5 Update2 or later
VMware ESXi 6.7 Update1 or later
VMware ESXi 7.0 or later
VMware ESXi 8.0 or later

Windows Server 2012 R2 with Update
Windows Server 2016
Windows Server 2019

4 x 80x80x38mm (16,300rpm)

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)

28 kg with full packaging

982 x 588 x 268 mm

1 x R281-3C1
2 x CPU heatsinks
1 x Rail kit
2 x Non-fabric CPU carriers

- Barebone package: 6NR2813C1MR-00-3*
- Motherboard: 9MR91FS0NR-00
- Rail kit: 25HB2-3A0202-K0R
- CPU heatsink: 25ST1-353105-T1R
- Non-fabric CPU carrier: 12KRC-0F3647-50R
- Front panel board - CFP2001: 9CFP2001NR-00
- Backplane board - CBP21C0: 9CBP21C0NR-00
- Backplane board - CBP2020: 9CBP2020NR-00
- Fan module: 25ST2-883829-D0R
- Riser card - CRS2131: 9CRS2131NR-00
- Riser card - CRS2132: 9CRS2132NR-00
- Riser card - CRS2124: 9CRS2124NR-00
- SAS cable for PCIe type SAS card: 25CFM-800821-A4R
- Cable for rear HDD to expander: 25CFM-05K820-A4R
- Power supply: 25EP0-212002-F3S

Optional parts:

- SAS cable for OCP type SAS card: 25CFM-850820-A4R
- RJ45 type COM cable: 25CR0-200400-Y4R