MAX does not see serial instruments through PCIe 8430

[teslac]

I just installed a PCIe 8430/8 and put the instruments on ports 1 and 2 respectivley.  When I try to query the instruments in MAX I get no responces from any of the ports.  This is usually trivial and frankley Im not sure what the problem could be.

[magpie15]

Have you tried to do a serial loopback test on the cables to see if the cable is the problem? 

http://www.ni.com/tutorial/3450/en/

Has this board ever worked before? Have these instruments ever worked before? This sounds like there is a hardware problem somewhere, you will just need to narrow down exactly where.