[indy99]

From what I can tell, it seemed like you'd need at least an mpx brick to get two graphics heads but ... since you have that handy and all ...

Not quite so handy; isn't/never was my box. (-; I grabbed the photos so I'd have some shots of the somewhat obscure O350 PCI expansion module. Interesting set up. No node board/memory, no IO9, not even any serial or PS/2 ports. Considering what SGI charged for processor nodes and the dearth of available PCI slots in an O350, it must have made sense at some point in the game.

Can you numalink to that with no nodeboard ? What happens if you stick a graphics card in there, will a numalink cable on the XIO slot give you dual head without needing processors and memory ?

NumaLink yes, that much is documented in the O350 UM. Since the PCI slots are intended for use, and the XIO slot used by graphics is on the same riser, it *ought to* work. If you take into count that the even less often seen O350-based Onyx4 had a nodeless box with not much more than the dual slot AGP riser attached to what looks like the same system board, I'd think the odds are at least favorable.

Be another of those not as SGI intended deals we all seem to be so fond of.

Speaking of AGP risers, I have one boxed up around here somewhere. Pretty sure this one came came out of a gutted Prism rack system, which is why I never had the balls to stick it in a perfectly good running O350.