*BSD News Article 64959


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From: jlucas@uvi.edu (John Lucas)
Subject: Re: AHA+ATI+TYAN=NFG?
Message-ID: <Dp18yx.Lr8@tigger.jvnc.net>
Sender: news@tigger.jvnc.net (Zee News Genie)
Organization: University of the Virgin Islands
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References: <315b58dd.1348418@news.thoughtport.com>
Date: Fri, 29 Mar 1996 14:14:01 GMT
Lines: 39

In article <315b58dd.1348418@news.thoughtport.com>, hal@thoughtport.com (Hal Snyder) wrote:
>Is this a known problem?  FreeBSD 2.1 would not boot from the standard
>SCSI boot floppy on the following system:
>
>TYAN Titan-III motherboard, P-100 CPU (Step 5), 32 MB RAM
>Adaptec 2940 PCI SCSI host adapter
>ATI OEM Mach 64 video, 1 MB DRAM
>SCSI hard disk, SCSI CD-ROM drive.
>
>System crashed immediately after CPU detection.  Snow crash.  Going
>into *visual* mode and disabling all non-essential devices did not
>improve things.
>

While there might be some other reason for this problem, it is fairly well 
known that the ATI Mach64 cards can't work if sio3 is probed. I don't know if 
you considered your serial ports "non-essential" or not, but ALL of them need 
to be disabled for installation (sio0 - sio3). After installation you need to 
compile a new kernel with no sio3 device AND you need to edit 
"/usr/src/sys/i386/isa/sio.c" to change this line:

/* XXX - configure this list */
static Port_t likely_com_ports[] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, };

Into this line:

/* XXX - configure this list */
static Port_t likely_com_ports[] = { 0x3f8, 0x2f8, 0x3e8, };

While I have seen mention of new/old BIOS problems with the AHA2940, I have 
two machines running FreeBSD v2.1.0 with them (and ATI Mach64 cards) here.

If you have already done the above, disregard (as if I had to tell you).


| John Lucas                               jlucas@uvi.edu |
| Academic Computing                   NIC Handle: JL423  |
| University of the Virgin Islands        (809) 693-1216  |
| St. Thomas, VI 00802     http://www.uvi.edu/jlucas.html |