Thanks for the details. This is a 2 slot chassis only. Is the riser you have on the server is came with the server or you installed it later? Second rise part# for this configs are. You can use one of these. First one support X16 slot and second one support X8 slot.
Hi! I have R630 with 2xCPU configuration that only has IO Riser 3 installed and as soon as I boot the server I get the HWC2005 error "The system board Riser cable or interconnect is not connected, or is improperly connected." Besides the error message the server boots fine and there is nothing else indicating problems in iDRAC (both CPUs have OK status etc). So I guess my questions are: 1. Is there a problem running the server without a IO riser 2 card (I guess this is the one I need?) with a 2xCPU conf? I don't plan on using any PCI cards. 2. Can anyone point me to the correct PN for IO riser 2? Is it 6R1H1? Thank in advance!  
PowerEdge R630 and missing IO Riser card for 2xCPU