I bought a IBM 3650 M2, and a riser card for that, Part Number 46M1074. This is the PCI-X riser card. Now, my admin team says that the card isn't fitting?? I'm not personally at the scene, but I've checked on the net, and this DOES seem to be the correct card for this server. Am I totally wrong??
Given this part is a PCI-X riser card and can support both PCI and PCI-X physically and electrically I suspect you really needed a PCI-e riser card. Your server actually ships with two low-profile PCI-e (x8 physically, x4 electrically) slots on the system board a two slot full-height PCIe riser card (x8 both physically and electrically) that has probably been replaced by this PCI-X riser card. If you can find this PCI-e riser card then you should just be able to replace it with the PCI-X one that's been fitted. If you can't fing it then you need to buy either it's exact replacement (IBM Part Number 46M1072) or alternatively the single slot PCI-e x16 riser card (IBM Part Number 46M1073) if that's what you need. Best of luck.