Technical specifications
ASRock RM251-ICX2/12L — Full Technical Specifications
Official datasheet
Original spec sheet © Vendor. Hosted by hardwaresys for buyer reference. Specifications subject to vendor’s published documentation.
Full Specifications
| Form Factor | 2U Rackmount |
| Dimensions | 779.5 mm X 447.6 mm X 87 mm |
| Support Motherboard | SP2C621D32TM3 |
| Buttons | Power, UID, Reset |
| LEDs | Power Status, LAN Activity, HDD Activity, System status |
| I/O Ports | 1 Type-A (USB3.2 Gen1), 1 Type-A (USB2.0) |
| Front Side Drive Bay | 12 hot-swap 3.5"/2.5" drive bays; supports 8 SATA HDD/SSD and 4 NVMe (PCIe3.0 x4) SSD*; *For more NVMe SSD support, please contact ASRock Rack |
| Front Side Backplane | 12-port NVMe/SATA/SAS* passive backplanes *SAS drive is only supported with additional RAID/HBA cards |
| Internal Side | 2 fixed 2.5" SATA drive bays; 2 M-key* (PCIe3.0 x4 or SATA 6Gb/s), supports 22110/2280 form factor [PCH]; * 1 fixed SATA drive bay share SATA with M2_1, and will be disabled when M2_1 populated with SATA device |
| Type | 1+1 CRPS |
| Output Watts | 1600W |
| AC Input | 100-240V, 47-63Hz |
| Fan | 6 PWM hot-swap 60 x 38 mm fans |
| CPU | Supports 3rd Gen Intel® Xeon® Scalable processors |
| Socket | Dual Socket P+ (LGA 4189) |
| Chipset | Intel® C621A |
| Supported DIMM Quantity | 16+16 DIMM slots (2DPC) |
| Supported Type | Supports DDR4 288-pin RDIMM, LRDIMM, RDIMM/LRDIMM-3DS, Intel® Optane™ Persistent Memory 200 series |
| Max. Capacity per DIMM | RDIMM: up to 64GB; RDIMM-3DS: up to 256GB; LRDIMM: up to 128GB; LRDIMM-3DS: up to 256GB |
| Max. DIMM Frequency | max. 3200MHz |
| Voltage | 1.2V |
| PCIe x 32 | SLOT1: 2 FH PCIe4.0 x16 or 1 FH PCIe4.0 x16, 2 FH PCIe4.0 x8 via RB251-X8X16X16 [CPU0]; SLOT2: 2 FH PCIe4.0 x16 or 1 FH PCIe4.0 x16, 2 FH PCIe4.0 x8 via RB251-X16X8X16 [CPU1] |
| PCIe x 16 | SLOT3: 1 low-profile PCIe4.0 x16 or 2 low-profile PCIe4.0 x8 via RB251-X8X16 [CPU1] |
| Additional Ethernet Controller | Intel® i350-AM2: 2 RJ45 (1GbE) |
| OCP slot | 1 OCP NIC 3.0 (PCIe4.0 x16) [CPU0] |
| UID Button/LED | 1 UID button w/ LED |
| Video Port | 1 DB15 |
| Serial Port | 1 RJ45 (COM) |
| USB 3.2 Gen1 Port | 2 Type-A (USB3.2 Gen1) |
| RJ45 | 2 RJ45 (1GbE), 1 dedicated IPMI |
| BIOS Type | 256Mb SPI Flash ROM |
| BIOS Features | AMI UEFI BIOS |
| Temperature | CPU, PCH, MB, Card side Temperature Sensing |
| Fan | CPU/Rear/Front Fan Tachometer; CPU Quiet Fan (Allow Chassis Fan Speed Auto-Adjust by CPU Temperature); CPU/Rear/Front Fan Multi-Speed Control |
| Voltage | CPU1_PVCCIN, CPU2_PVCCIN, PVDDQ_ABCD,PVDDQ_EFGH,PVDDQ_IJKL,PVDDQ_MNOP, 1.05V_PCH,1.8V_PCH, +BAT,PVNN_PCH, 3.3V,5V,12V,3.3VSB, 5VSB |
| Temperature | Operating temperature: 10°C ~ 35°C / Non-operating temperature: -40°C ~ 70°C |
| Humidity | Non-operating humidity: 20% ~ 90% (non-condensing) |
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