JSI Tip 1048. Devices attached to Adaptec 3940 family adapter do not function.

If you have an Adaptec AHA-3940 family adapter:

1. Your mothereboard must be PCI 2.0 compliant.

2. The adapter must be on the primary PCI bus. It can not be behind two PCI-to-PCI bridges, the one on your MB and the one on the 3940.