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--- hardware:asus_rs500a-e11-rs12u [2026/02/02 20:34] – thum
+++ hardware:asus_rs500a-e11-rs12u [2026/02/26 14:45] (current) – adding rear panel features section thum
@@ Line 3: / Line 3: @@
 </note>
-====== ASUS RS500A-E11-RS12U (KRPA-U16 mainboard) ======
+====== ASUS RS500A-E11-RS12U ======
 ===== General Information =====
-The ASUS RS500A-E11-RS12U is an AMD EPYC 7003 (Milan) 1U single-socket server that supports up to 16x DIMM, 12x NVMe, 3x PCIe 4.0 slots, 1x OCP 3.0, 2x M.2 and ASUS ASMB10-iKVM and in use for the # vikings hosting platform.
+The ASUS RS500A-E11-RS12U is an AMD EPYC 7003 (Milan) 1U single-socket server (barebone) that supports up to 16x DIMM, 12x NVMe, 3x PCIe 4.0 slots, 1x OCP 3.0, 2x M.2 and ASUS ASMB10-iKVM and in use for the # vikings hosting platform.  It contains the ASUS KRPA-U16 mainboard.
+===== Rear Panel Features =====
+<code>
+PCIe Gen4 x16,slots, LP (x16 link)
+          ▲
+          │PCIe Gen4 x16 slot, LP (x8 link)
+          │            ▲
+          └┐           │  PCIe Gen4 x16 slot, FHHL (x16 link)
+           │           │                       ▲
+┌────┬────┬┼───────────┼───────────────────────┼─────┐
+│    │    │├─────────┐ ├─────────┐   ┌─────────┴───┐ │
+│    │    │└─────────┘ └─────────┘   └─────────────┘ │
+│ PSU│ PSU│     ┌──┐  ┌───┐            ┌───────────┐ │
+│    │    │ ┌─┐ ├──┘  ├───┘┌──┐┌──┐┌──┐└─────┬─────┘ │
+│    │ ┌──┼─┴─┘ ├──┐  │    │  ││  ││  │      │       │
+│    │ │  │     ├──┘  │    ├──┘├──┘├──┘      │       │
+└────┴─┼──┴─────┼─────▼────┼───┼───┼─────────┼───────┘
+       ▼        ▼    VGA   │   ▼   │         ▼
+ QCode LED  2x USB3.2 Gen1 │ LAN1  ▼   OCP3.0 Gen4 x16
+                           │ 1Gbe LAN2
+                  BMC ◄────┘      1Gbe
+</code>
+===== Issues =====
+==== Low-Profile Slot Port Obstruction ====
+When using 4-port network cards in one of the low-profile slots, the server chassis obscures one of the ports by about 0.5 to 1 mm.  Inserting a GBIC (or SFP transceiver) is possible with some force, but subsequent removal is very difficult or impossible.
+  * Potential Fixes
+    * When purchasing network cards with 4 slots, use the OCP3.0 port if possible.
+    * For stuck GBICs, gently wiggle while pulling or use a flathead screwdriver for leverage without forcing, to prevent port damage.