Differences

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--- hardware:asus_rs500a-e11-rs12u [2026/04/07 08:45] – [No PCIe Bifurcation Support] thum
+++ hardware:asus_rs500a-e11-rs12u [2026/04/08 13:32] (current) – [No PCIe Bifurcation Support] thum
@@ Line 45: / Line 45: @@
 === Example Intel E810-XXVDA4 ===
-The ASUS RS500A-E11 provides a PCIe Gen4 x16 Low Profile slot (x16 link), which is the optimal slot for the Intel E810-XXVDA4.  Since PCIe Gen4 offers sufficient bandwidth even on a single x8 link, and the slot
+Contrary to the E810-CQDA2 the Intel E810-XXVDA4 has **one** internal controller, which receives adequate PCIe bandwidth without requiring bifurcation.  Since PCIe Gen4 offers sufficient bandwidth even on a single x8 link, and there are x8 and x16 slots available, there should be no problems regarding the aggregated maximum speed of 4x 25GbE.
-provides a full x16 link, both internal controllers of the E810-XXVDA4 receive adequate PCIe bandwidth without requiring bifurcation.
-All four 25 GbE ports can operate simultaneously at full line rate (4×25 Gbps = 100 Gbps aggregate) without any PCIe bottleneck.  Note: If the E810-XXVDA4 were installed in a PCIe x8 slot on this mainboard (which does not support bifurcation), the two internal controllers would share the x8 lanes (x4 each), resulting in a PCIe bottleneck when all four ports are simultaneously under full load.  Therefore, installation in the PCIe Gen4 x16 slot is strongly recommended.