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ASRock Rack
ASRock Rack EC266D4U-2L2T server motherboard
Micro-ATX server board with LGA 1700 socket for Xeon E-2400 series, four DDR5 ECC slots to 128 GB, PCIe 5.0 x16, four OCuLinks, M.2 and dual 10 GbE
- CPU Socket TypeLGA 1700
- CPU TypeSupports Intel Xeon E-2400 series and Intel Pentium Gold G74
- Number of Processor Support1
- CPU FeaturesThermal Design Power 95W
- North BridgeIntel C266
- Memory Slots4 x DDR5 288-pin
- Single Xeon E-2400 socket delivers up to 95W TDP performance
- Four DDR5 ECC UDIMM slots support 128GB maximum capacity
- PCIe 5.0 x16 slot provides maximum GPU or accelerator bandwidth
- Four OCuLink connectors enable flexible storage expansion
- Dual 10GbE Intel X710 ports handle high-throughput network traffic
Single-socket server board
The ASRock Rack EC266D4U-2L2T is a Micro-ATX server motherboard built around the Intel C266 chipset and an LGA 1700 socket. It accepts one Intel Xeon E-2400 series processor or a Pentium Gold G7400/G7400T with a 95 W thermal envelope. Four DDR5 288-pin slots support ECC UDIMMs up to 128 GB at 4400 MT/s.
Builders needing one CPU and ECC memory
This board suits integrators assembling compact single-socket servers or workstations that require ECC memory and 10 GbE networking. It does not suit builds that need dual-socket scaling, more than four memory channels, or additional full-length PCIe slots beyond the single x16 and x4 connectors.
One PCIe 5.0 x16 slot from the CPU
The primary expansion slot delivers PCIe 5.0 x16 bandwidth directly from the processor, while a second slot provides PCIe 4.0 x4 and shares lanes with an OCuLink port. Four OCuLink connectors and one M.2 slot complete the high-speed I/O.
Besonderheiten
- Single Xeon E-2400 socket delivers up to 95W TDP performance
- Four DDR5 ECC UDIMM slots support 128GB maximum capacity
- PCIe 5.0 x16 slot provides maximum GPU or accelerator bandwidth
- Four OCuLink connectors enable flexible storage expansion
- Dual 10GbE Intel X710 ports handle high-throughput network traffic
Technische Daten
| Brand | AsRock Rack |
|---|---|
| Model | EC266D4U-2L2T |
| CPU Socket Type | LGA 1700 |
| CPU Type | Supports Intel Xeon E-2400 series and Intel Pentium Gold G7400/G7400T processors |
| Number of Processor Support | 1 |
| CPU Features | Thermal Design Power 95W |
| North Bridge | Intel C266 |
| Memory Slots | 4 x DDR5 288-pin |
| Memory Standard | DDR5 4400 |
| Maximum Memory Supported | 128GB |
| ECC Supported | Yes |
| PCI Express 4.0 x16 | SLOT6: PCIe5.0 x16 [CPU] |
| PCI Express x4 | SLOT7: PCIe4.0 x4* [CPU] *SLOT7 share lanes with OCuLink4. OCuLink4 will disable when SLOT7 is populated |
| PCI Express x1 | SLOT4: PCIe4.0 x1 [PCH] |
| Other Slots | 1 OCuLink (PCIe4.0 x4)* [CPU] 1 OCuLink (PCIe4.0 x4 or 4 SATA 6Gb/s) [PCH] 2 OCuLink (PCIe4.0 x4) [PCH] *OCulink4 shares lanes with SLOT7 and will be disabled when SLOT7 is populated |
| M.2 | 1 x M-key (PCIe4.0 x4); support 2280/2260/2242/2230 form factor [PCH] |
| Onboard Video Chipset | Aspeed AST2600 |
| LAN Chipset | Intel X710 |
| LAN Speed | 10Gbps |
| Second LAN Chipset | Intel I210 |
| Second LAN Speed | 10/100/1000Mbps |
| Max LAN Speed | 2 x 10Gbps + 2 x 1Gbps |
| Back I/O Ports | 1 x COM (Serial Port) / 1 x D-Sub / 2 x LAN (RJ45) / 2 x SFP28 / 2 x USB 3.2 Gen 1 Type-A |
| Onboard USB | USB 3.2 (Gen1) Header: 1 header (19-pin, 2 USB3.2 Gen1) USB 2.0 Header: 1 header (9-pin, 2 USB2.0) Type A USB 2.0 Port: 1 vertical Type-A (USB2.0) |
| Other Connectors | Power Connector: 1 (24-pin, ATX main power), 2 (8-pin, ATX 12V) Auxiliary Panel Header: 1 (18-pin): chassis intrusion, system fault LED, LAN1/LAN2 activity LED, locate, SMBus System Panel: 1 (9-pin): power switch, reset switch, system power LED, HDD activity LED VGA header: 1 Speaker Header: 1 (4-pin) Buzzer: 1 Fan Header: 7 (4-pin) Thermal Sensor Header: 1 TPM Header: 1 (13-pin, SPI) SGPIO Header: 1 SMBus header: 1 PMBus header: 1 IPMB Header: 1 Clear CMOS: 1 (contact pads) Front Lan LED Connector: 1 NMI Header: 1 |
| BIOS Feature | AMI 256Mb SPI Flash ROM Plug and Play, ACPI 6.4 and above compliance wake up events, SMBIOS 2.8 and above, ASRock Rack Instant Flash |
| Form Factor | Micro ATX |
| Dimensions (W x L) | 9.6" x 9.6" |
| Versandgewicht | 1.47 kg |
| Paketgröße | 356 × 305 × 76 mm |
Fragen zu diesem Artikel
Will the DDR5 ECC UDIMM modules need to be replaced when I exceed 128 GB?
The board supports a maximum of 128 GB across four slots, so any capacity increase beyond that would require a different motherboard.
Which expansion slot becomes unavailable first when I add a card to the PCIe 4.0 x4 slot?
Populating SLOT7 disables OCuLink4 because they share the same CPU lanes.
How much heat does the 95 W TDP processor generate during continuous operation?
The supported CPUs have a 95 W thermal design power, which determines the cooling capacity you must provide for sustained loads.
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