R181-N20

‏(rev. 100)‏

1U
438 x 43.5 x 730

MR91-FS0

2nd Generation Intel^® Xeon^® Scalable and Intel^® Xeon^® Scalable Processors
Intel® Xeon® Platinum Processor, Intel® Xeon® Gold Processor, Intel® Xeon® Silver Processor and Intel® Xeon® Bronze Processor
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 Chipset

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

Maximum verified DCPMM configuration:

* Ambient temperature 35°C
* 2nd Generation Intel® Xeon® Scalable processor 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. 2933MHz 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 (Intel^® I350-AM2)
1 x 10/100/1000 management LAN

Integrated in Aspeed^® AST2500
2D Video Graphic Adapter with PCIe bus interface
1920x1200@60Hz 32bpp, DDR4 SDRAM

Front side:
2 x 2.5" Gen3 NVMe/SATA/SAS hot-swappable bays, NVMe from CPU_1
8 x 2.5" SATA/SAS hot-swappable bays

SAS card is required for SAS devices support

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

Depends on SAS add-on card

Intel^® SATA RAID 0/1/10/5
Optional Intel^® Virtual RAID On CPU (VROC) RAID 0, 1

Note: VROC module is compatible for Intel^®SSD only

Riser Card CRS1021:
- 2 x PCIe x8 (Gen3 x8) low-profile slots, from CPU_0

Riser Card CRS1015:
- 1 x PCIe x16 (Gen3 x16) low-profile slot, from CPU_1

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

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

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

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

Speed and bandwidth:
PCIe Gen3 x4 or SATAIII 6Gb/s or SAS 12Gb/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:
- 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 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:

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

Red Hat Enterprise Linux 6.9 (x64) or later
Red Hat Enterprise Linux 7.3 (x64) or later
Red Hat Enterprise Linux 8.0 (x64) or later
Red Hat Enterprise Linux 9.0 (x64) or later

SUSE Linux Enterprise Server 11 SP4 (x64) or later
SUSE Linux Enterprise Server 12 SP2 (x64) or later
SUSE Linux Enterprise Server 15 (x64) or later

Ubuntu 16.04.1 LTS (x64) or later
Ubuntu 18.04 LTS (x64) or later
Ubuntu 20.04 LTS (x64) 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

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

For Cascade Lake processors:

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

Red Hat Enterprise Linux 7.6 (x64) or later
Red Hat Enterprise Linux 8.0 (x64) or later
Red Hat Enterprise Linux 9.0 (x64) or later

SUSE Linux Enterprise Server 12 SP3 (x64) or later
SUSE Linux Enterprise Server 15 (x64) or later

Ubuntu 18.04 LTS (x64) or later
Ubuntu 20.04 LTS (x64) or later
Ubuntu 22.04 LTS (x64) or later

VMware ESXi 6.0 Update 3 or later
VMware ESXi 6.5 Update 2 or later
VMware ESXi 6.7 Update 1 or later
VMware ESXi 7.0 or later
VMware ESXi 8.0 or later

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

8 x 40x40x56mm (23,000rpm)

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)

13 kg

985 x 588 x 250 mm

1 x R181-N20
2 x CPU heatsinks
1 x 2-Section Rail kit
2 x Non-fabric CPU carriers

- Barebone package: 6NR181N20MR-00-1*
- Motherboard: 9MR91FS0NR-00
- 2-Section Rail kit: 25HB2-3A0202-K0R
- CPU heatsink: 25ST1-253100-F2R
- Non-fabric CPU carrier: 12KRC-0F3647-50R
- Front panel board - CFP1000: 9CFP1000NR-00
- Backplane board - CBP10A2: 9CBP10A2NR-00
- U.2 card - CNVP122: 9CNVP122NR-00 (2 x U.2 ports)
- Riser card - CRS1021: 9CRS1021NR-00
- Riser card - CRS1015: 9CRS1015NR-00
- Fan module: 25ST2-44562G-D0R
- Power supply: 25EP0-212002-F3S

Optional parts:

- VROC module: 25FD0-R181N0-10R
- RJ45 type COM cable: 25CR0-200400-Y4R