*BSD News Article 64348


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From: hal@thoughtport.com (Hal Snyder)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: AHA+ATI+TYAN=NFG?
Date: Fri, 29 Mar 1996 03:38:08 GMT
Organization: Wyvern Labs
Lines: 25
Message-ID: <315b58dd.1348418@news.thoughtport.com>
NNTP-Posting-Host: wyvern.thoughtport.com
X-Newsreader: Forte Agent .99d/32.182

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.

NT 3.51 Workstation also crashed during install on the same system
until a patched device driver was downloaded from Adaptec.  The guy
doing the NT install said he came across numerous references to ATI vs
Adaptec problems on TechNet.

FreeBSD works perfectly with all peripherals mentioned above when the
motherboard/CPU is ASUS + 486DX4-100.

Problem was eliminated on the TYAN system by swapping the video board
for a Diamond Stealth.

Unfortunately, I did not have time at work to pursue the puzzle.
Maybe other readers of this list can shed some light.  ??