Thanks again for replying.
"Once the motherboard is checked the answer becomes clear. It doesn’t support and was never supposed to work with 5400's"
I just checked back with Tyan & it looks like your right. I have been mistakenly looking at the Tyan Tempest i5000x. This board is a Tyan Tempest i5000xt.
Big whoops. Oh well, I'll just have to find a new system to put these processors into.