* The nodeboard in the picture does *not* have 400MHz CPUs, but 250 or 300MHz. The 400MHz CPUs look like this (notice how the cooling fins are different and glued, not screwed):
IMGA0276.med.JPG
Thanks for the notes: I did swap out the 14-4 for the 16-4, which would explain that oddness (I was planning to upgrade the RM7 -> RM10, but the new system already has this) but this is the ONLY modification to this system since it was decommissioned and in my stewardship.
This was a working system... it was an inferno in a post house and I moved it personally from that facility in Burbank. It was removed from service, but still connected to the company's network when I turned up. Thus if the XT-HD only works with 400MHz and above, I don't have any clue how they managed it. I looked up the serial numbers online, nekochan and elsewhere, all stated 400MHz. So if they're only 250/300MHz, it just seems odd. Or there are multiple shared components on the 300MHz/400MHz nodeboards that have the same serial #'s?
If only for some 250V!