To correct the problem, press Ctrl-A during boot to enter the 154x BIOS configuration utility. Choose the Configure/View Host Adapter Settings option, then press the F6 key to return the adapter to its factory default settings.
After doing this, reconfigure the adapter using the instructions contained in the IA Device Configuration Guide or Driver Update Guide, if applicable. It is especially important that the adapter be configured to use DMA 6. Note that it must be changed from the default of DMA 5.