I have a 7 slot, 32 bit Digi expansion chassis (SBS model) with 1 core, 1 accel, 5 process cards and I'm running PT 7.1 on a G5 1.8dp (gen1).
Pro Tools crashed yesterday with a "DAE Error 4". On restart, Pro Tools was unable to find hardware. Also, the 192I/O's have the orange rather than green status ring around the power button when everything is on.
I've put the core card in the G5 in place of the pci host adaptor and Pro Tools sees it fine. I've also taken all the cards except the core card out of the chassis and hooked things up and it's the unable to find and orange ring on the 192's situation.
The fan in the chassis still runs, but it seems like the cards aren't getting any power (shown by the orange rings on the 192's I think).
I've searched the DUC and it seems like chassis failures are very rare.