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Assuming the initial poster really isn't seeing any Adaptec messages whatsoever when booting, I'm leaning towards the Macintosh ROM/corrupted card BIOS theory, at least as the next thing to try. AFUV220.EXE (Adaptec.com) is the appropriate update if this is a 2940UW non-Pro (as it probably is); you'll need to reboot to "DOS Mode," unpack it (self-extracting executable), and run whatever it is you run to make it work.
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This is correct...... I see the card listed in the Bootup
but 'Ctrl-A' won't get me into the Bios.
Also my card is taged as an 'AHA2940"W"/AHA2940UW'.
I found no listing of the 2940"W" /2940UW at Adaptec,
What I found is the AHA2940"U"/2940UW, I don't know how much
difference that would make.
I tried making a DOS boot disk as per docs but that doesn't
work eather.
I D/L'ed the AFUV220.exe file and will try it tomorrow.