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Article #139

Re: PCI compatibility of BusLogic's BT946C SCSI Adapter

#139
From: Terry Kennedy, Operations Mgr.
Date: Sat, 24 Feb 1996 06:35
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In article <Dn92LB.Cn@daneb.ping.de>, mueller@daneb.ping.de (Andreas Mueller) writes:
> I'm considering to buy the BT946C SCSI card for an ASUS TP4XE board. The
> Linux SCSI Howto mentions a good driver stability because of its mailbox
> communication principle. However, a reliable german computer magazine tested
> this card and experienced several PCI incompatibilities (C't 1/95). It was
> not possible to correctly set up this card in a Plato board.
> Has the situation changed?  Maybe someone is using a BT946C with an ASUS
> board. Suggestions for other SCSI cards are also welcome.

  I've been using BT946C's in Plato boards since Rev. A of the BT946C and
BIOS 8 on the Plato. I've never had any trouble (in fact, I've run 2 BT946C's
in a Plato). Early BT946C's (Rev A) didn't get along with the Plato's PCI
autoconfigure. There was a lot of fingerpointing, with both sides claiming
the other violated the PCI spec. The easy solution was to set a BIOS address
on the BusLogic card (there are 2 jumpers there for the purpose) instead of
using PCI autoconfig. Somewhere along the line BusLogic updated their card
(it's now at Rev. F) and they now work fine in the Plato even with PCI auto-
config enabled. (BTW, later BT946C revs like E05 and F don't have a "classic"
BIOS on them - they only present the BIOS using PCI autoconfig).

	Terry Kennedy		  Operations Manager, Academic Computing
	terry@spcvxa.spc.edu	  St. Peter's College, Jersey City, NJ USA
        +1 201 915 9381 (voice)   +1 201 435-3662 (FAX)
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Message-ID: <1996Feb24.013551.1@spcvxb.spc.edu>
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References: <Dn92LB.Cn@daneb.ping.de>

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Newsgroups: comp.os.linux.hardware,comp.periphs.scsi
Path: arc1-ca.pugleaf.net!news.new-york.net!spcuna!spcvxb!terry
From: terry@spcvxb.spc.edu (Terry Kennedy, Operations Mgr.)
Subject: Re: PCI compatibility of BusLogic's BT946C SCSI Adapter
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Organization: St. Peter's College, US
Date: Sat, 24 Feb 1996 06:35:51 GMT
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