PCI Express x16: 1 x PCI Express x16 slot, running at x4 (PCIEX4)
* The PCIEX4 slot shares bandwidth with the PCI Express x1 slots. The PCI Express x1 slots will become unavailable when a PCIe x4 expansion card is installed.
* When installing a x8 or above card in the PCIEX4 slot, make sure to set PCIE Slot Configuration (PCH) in BIOS Setup to x4.
Memory Standard: Supports DDR5 ECC, buffered memory (RDIMM/ RDIMM-3DS/ RDIMM-9x4) up to 6800+(OC)*
1DPC Up to 6800+ MHz (OC), 4800 MHz Natively for Xeon W9, Xeon W7 and Xeon W5.
2DPC Up to 6000+ MHz (OC), 4400 MHz Natively for Xeon W9, Xeon W7 and Xeon W5.
Supports 4400 MHz Natively for Xeon W3, W5-3423 and W5-3433.
Overclocking is not supported.
* Actual support may vary by CPU
* Please refer to Memory Support List on ASRock's website for more information. (http://www.asrock.com/)
Memory Standard: Supports DDR4 4600+(OC)*/ 4500/ 4400/ 4333/ 4266(OC)/ 4133(OC)/ 4000(OC)/ 3866(OC)/ 3800(OC)/ 3733(OC)/ 3600(OC)/ 3200(OC)/ 2933/ 2800/ 2666/ 2400/ 2133 non-ECC, un-buffered memory
- Supports ECC UDIMM memory modules with Intel Xeon processors
- Supports DDR4 ECC, un-buffered memory with Intel Xeon processors W series in the LGA 1200 Socket
* Please refer to Memory Support List on ASRock's website for more information.
* Xeon W (WE3/WE2) support DDR4 up to 2933, Xeon W (WE1) support DDR4 up to 2666.