Date: Mon, 03 Aug 1998 11:48:25 +0100 From: Karl Pielorz <kpielorz@tdx.co.uk> To: hardware@FreeBSD.ORG Subject: ahc0: board not responding - update Message-ID: <35C59579.951693CB@tdx.co.uk>
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Hi All, I recently had a problem with a 2940UW and FreeBSD 2.2.5 through 2.2.7. The card would probe OK - but then just sit there and say: "ahc0: board not responding" I posted a question into -hardware, which didn't get any replies, I also searched the archives - this problem is an old one, and not properly resolved either... Most the old replies were along the lines of "Termination", "Check termination" etc. ;-) It is not a termination problem. There is no definitive answer, but I thought I'd post what I've found thus far: (Someone has already posted something hinting along these lines). There is a problem between certain BIOS / revisions of the Adaptec 2940, 2940UW etc., the motherboard chipset / PCI implementation - and the ahc driver in FreeBSD. To fix my problem - I swapped the 2940 that said "board not responding" with an identical (but earlier revision) 2940 from another machine - and it worked. The 'offending' 2940 also worked in the other machine (so it must be more than just 2940 revision & FreeBSD related - i.e. it must relate to the motherboard's chipset etc. as well). Whilst the above is not a 'definitive' fix for the problem - it does explain it a bit more than anyone else has - and offer a solution (try to get a different / earlier revision of the board ;-) I'd like to suggest we put this in the FAQ somewhere? - or anywhere else more appropriate? If someone else _has_ posted more info, or a solution - and I've not seen it, my apologies - I've just spent the past week getting very annoyed... I'm now running FreeBSD on our 3rd identical machine, and I'm calm... (honest ;-) Regards, Karl Pielorz To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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