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Thread View: comp.os.linux.hardware
4 messages
4 total messages Started by Pim Zandbergen Mon, 06 Nov 1995 18:47
BusLogic 946C SCSI HA does not work with Asus TP4XE MB
#95
Author: 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
Re: BusLogic 946C SCSI HA does not work with Asus TP4XE MB
#96
Author: Rhia
Date: Tue, 07 Nov 1995 02:01
30 lines
1976 bytes
pim@chagall.cti-software.nl (Pim Zandbergen) writes:

> 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.
>
> [ snip ]
>
> 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.

This is a Rev Ae1 BusLogic card, produced before Plug & Play, and will not
work properly in a PNP motherboard.  That's why it works fine in the P60 -
it was also non-PNP.  If you were to have a Rev E 946C, it should work just
fine in the ASUS motherboard.

If you just bought the 946C, it should still be under warranty and you
should return it to your vendor for a Rev E replacement.  If it's been
around for a while, you may as well put it back to use in the P60
motherboard or equivalent non-PNP system, because nothing you can do to
that card will make it work in the ASUS motherboard.

Rhia
Re: BusLogic 946C SCSI HA does not work with Asus TP4XE MB
#100
Author: D Chappe
Date: Sat, 11 Nov 1995 01:18
26 lines
1527 bytes
There were chipset problems with early PCI motherboards
that used ARES chipsets. The problem dealing with
interupt conflicts with bus-mastering controllers like the
BusLogic 946C were supposedly addresses in the Mercury
and later chipsets. 

I can tell you that re-booting my server would often
hang when the controller would start up. After a few
attempts it would work. At least it did for about 
a year and a half.

My BusLogic 946C just decided to stop working the other day.
Sort of...It recognized the DOS partition on the disk
but would not see my Novell partition

Guess what I replaced it with...
An ADAPTEC AHA-1542. Considering the time pressure
I was under to get my file server back up and running
it works. Its not PCI but it works.

I would check to see what chip sete ASUS uses and
see if it possible to get a later one.

Hope this helps.

Don.
Re: BusLogic 946C SCSI HA does not work with Asus TP4XE MB
#101
Author: Rhia
Date: Sat, 11 Nov 1995 02:30
11 lines
1043 bytes
In article <480tkt$b@bud.shadow.net> D Chappe <chappe@shadow.net> writes:

> My BusLogic 946C just decided to stop working the other day.  Sort
> of...It recognized the DOS partition on the disk but would not see my
> Novell partition

The most common reason for this happening is autoconfiguring the 946C by
mistake and resetting the > 1GB option the wrong way.  Netware doesn't
handle extended geometries well at all.

Rhia
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