SCSI problems

From: Richard Erlacher <edick_at_idcomm.com>
Date: Mon Oct 15 21:29:19 2001

If it's in a PnP motherboard, it's really important that the interrupt
assignments don't clash. I don't know about the 'C' verson, but I've got
several 'B' and 'A' version boards, and a plain 1540. All of them require Irq11
and port address 0x330 and DMA5 in order to work from the BIOS. If you can get
the motherboard to allow it to use those assignments, the firmware works.
Windows will find the board after a little massaging if you don't use the
default addresses, but the firmware won't find it.

These aboards are also pretty fussy about having the termination right. SCSI
will often limp along with incorrect termination, but it eventually will bite
you. I'd recommend a check to ensure the board isn't providing redundant
termination.

I know of no reason why a motherboard with ISA slots shouldn't work just fine
with thsi board. It's unlikely even a current generation Seagate drive
shouldn't work with this board, so long as it's SE SCSI. There are probably
transfer rate settings that can be handled through the BIOS, depending on the
version.

A check with ADAPTEC should settle this thing pdq if you find the faq's.

Dick

----- Original Message -----
From: "Gary Hildebrand" <ghldbrd_at_ccp.com>
To: "Classic computing mailing list" <classiccmp_at_classiccmp.org>
Sent: Monday, October 15, 2001 7:40 PM
Subject: SCSI problems


> A friend has a 9 gig Seagate drive and an Adaptec 1542C card and is
> having a helluva time getting it to work with a late model motherboard.
> boots okay from an IDE drive, but the aforementioned setup hangs almost
> every time.
>
> Do you know of an incompatibility with the drive and card; i.e. too much
> drive for the scsi bios to understand???
>
> Gary Hildebrand
>
>
Received on Mon Oct 15 2001 - 21:29:19 BST