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Article #95

BusLogic 946C SCSI HA does not work with Asus TP4XE MB

#95
From: Pim Zandbergen
Date: Mon, 06 Nov 1995 18:47
36 lines
2183 bytes
I have replaced my ALI 486 motherboard and BusLogic 445C SCSI HA (VL-bus)
with an Asus TP4XE motherboard (Pentium 120) and a BusLogic 946C (PCI).

The 946C will not work. If set for autoconfiguration (JP 4&5 open),
the board will just be ignored. If set for manual configuration,
the PC will hang after displaying the BusLogic banner from its BIOS.

I've tried all sorts of variations in PCI/PnP configuration without
any change.

An NCR 53c810 HA (also busmastering) in the same slot works fine, but gives
a completely different sector translation, which would probably require
re-fdisk-ing to solve. It's a miracle that a BusLogic formatted disk will
boot on an NCR at all. The other way around does not boot. For now, I'm
using an Adaptec 1542CF (ISA), but this is really slow, but the Adaptec
uses the same sector translation as the BusLogic.

The 946C works just fine in an Intel Premiere II (Pentium 60),
although not in auto-configuration mode (gives configuration error).

The 946C was set for i/o 330, IRQ 11 (Just like the AHA-1542), INT A,
"level" interrupt. The BIOS revision is 4.86, the firmware revision is
4.22, the hardware revision is Ae1.

The Asus is running the Award BIOS revision 0111. I do have the MR BIOS
flash image, but I'm reluctant to record it, as I read in 
alt.comp.periphs.mainboard.asus that there is no way back to the Award BIOS,
and in the process you will loose the NCR BIOS, which it seems I am going
to need.

Any ideas ?
-- 
E-mail : Pim Zandbergen <pim@cti-software.nl>
S-mail : Laan Copes van Cattenburch 70, 2585 GD The Hague, The Netherlands
Phone  : +31 70 3542302
Fax    : +31 70 3512837
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From: pim@chagall.cti-software.nl (Pim Zandbergen)
Newsgroups: comp.os.linux.hardware,comp.sys.ibm.pc.hardware.storage,comp.periphs.scsi,alt.comp.periphs.mainboard.asus
Subject: BusLogic 946C SCSI HA does not work with Asus TP4XE MB
Date: 6 Nov 1995 19:47:06 +0100
Organization: CTI Software BV, The Hague, the Netherlands
Message-ID: <47ll7a$6ab@chagall.cti-software.nl>
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