Re: Help: Adatec ava-1505/1515 IRQ problems

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#36

From: Mistoffolees
Date: Thu, 04 Jan 2001 05:09

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"David. E. Goble" wrote:

> Hi all;
>
> I have just spent the just 24 hours building faster computer for my
> linux/win95 system.
>
> I have verything working, excetp this damn SCSI card.
>
> The card itself has the following jumper on;
>
>         BEN, AS1, AS0, I09, DN: for I-O 140-015f IRQ 9
>
> Win95 has then assumed IRQ 12 when I try adding new hardware.
>
> When I rebbot win95 says there is a problem.
>
> Under General:Device status;
>         to see hardware documentation (code 10).
>
> Problem is IU have no documentation.
>
> Under Resources: Conflicting devices list;
>         no conflicts.
>
> Can anyone help, please :<

This is the OEM version of the Adaptec AHA-15XX series of SCSI host
adapters. It is also an ISA card. AFAIK, ISA cards cannot share IRQ's
and there may be a PCI card in the system already using IRQ9. The default
IRQ for this card is usually IRQ11; but there may be something already using
or sharing IRQ11. And IRQ 12 is the i8042prt for the PS/2 mouse and/or
keyboard. The "easy" work-around is to replace this ISA SCSI card with
a PCI version; PCI bus-mastering allows the sharing of IRQ's.

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