[kaigan]

I can confirm that the system board between the Onyx4 G2 brick (the one without a node board) is the same as the one in an O350 expansion unit. The O350-based stuff all uses the same 2U Interface board, 003-1809-00x. Also, the only difference between the Onyx4 G2 and the G2N is literally the node board. They're otherwise identical.

I'd also be curious to know if the AGP riser between the Prism and Onyx4 is the same. My understanding is that the Prisms used a slightly later generation of ATI cards than the Onyx4s did, but I'm not certain if there were other differences. Indy99, if you can check the part number on the one from that Prism, I can check the one on my Onyx4 so we can compare notes.