Date: Wed, 8 Apr 1998 22:43:30 -0700 (PDT) From: Tom <tom@sdf.com> To: Chuck Robey <chuckr@glue.umd.edu> Cc: Stefan Lindgren <stefan@teledigit.se>, freebsd-hardware@FreeBSD.ORG Subject: Re: Dual PP MB of choice? Message-ID: <Pine.BSF.3.95q.980408223757.7053B-100000@misery.sdf.com> In-Reply-To: <Pine.BSF.3.96.980408222455.26797K-100000@localhost>
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On Wed, 8 Apr 1998, Chuck Robey wrote: > I wouldn't mind being corrected here if I'm wrong, but if I remember > right, there was discussion some time back, that the Adaptec-derived > scsi controllers that were integrated onto motherboards were somewhat > crippled, at least in terms of on board command memory and tags. I Nope. They use the same chip, the aic7880 (at least ASUS does on the P55T2P4S and the P2LP97DS). The chip is what matters. Adaptec has some cheaper controllers (aic7860?) that aren't as good. Some motherboards use then instead, but Adaptec also puts them on some versions of the Adaptec 2940 controler (wasn't the 2940A one of those?). You also get screwed if buy them. I've pretty much given up on buying Adaptec cards. I either get them on the motherboard, or use DPT controllers now. The DPT driver in 2.2.6 is much more solid than the non-CAM ahc driver. Probably because the controller takes care of nearly all the SCSI protocol handling. Tom To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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