Hi Rodney,
a lot of times I was able to get the Shuttle to work on Asmedia HBAs too; I noticed that usually if on a mainboard the NEC/Renesas works, the Asmedia will work too.
Can't you get an Intensity Shuttle from a friend or reseller to test by yourself? The test takes few minutes. If the unit is recognized by the BMD software and I/O is not black, usually it will work without problems.
Ciao,
Paolo
www.ivsEdits.com