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List:       aic7xxx
Subject:    Re: IWILL BS100 (AIC7895) don't boot.
From:       "Robert W. Rowe" <rrowe () winstar ! com>
Date:       1999-10-28 21:07:55
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You didn't say whether you had a terminator installed, or if your last SCSI 
device was properly terminated. You need the end of the SCSI chain terminated.

This controller is very touchy, in my experience. It requires a 
high-quality cable, clean connectors of good quality, and good, working 
active terminator or proper termination set on the last device in your SCSI 
chain. This is usually done with jumpers.

I didn't have much success also until I separated narrow and wide SCSI 
devices, putting them on different channels. The narrow devices, a Zip 
drive and a SCSI CD-R drive, are on channel B together, with the CD-R drive 
terminating the channel. The two wide SCSI disks are on the A channel; the 
second of two disks is terminated.

When I disconnect the external SCSI Zip drive, I replace its connector with 
an active terminator.

At 09:37 PM 10/28/99 +0200, Jose L. Fernandez Jambrina wrote:
>Dear sirs,
>
>         Today I have received my new PC equiped with an IWILL BS100 
> motherboard
>with a built-in Adaptec 7895 dual scsi controler, and and ultrawide scsi
>disk.
>
>1. The computer has Windows98 preinstaled, so I boot it for a fasta
>check. All rigth.
>
>2. I tried to boot from the Debian rescue/boot diskette. The kernel
>(version 2.0.36) issue a message complaining about a scsi terminator,
>and it frezze.
>
>3. After playing with the setup the message disapear, but the computer
>din't boot. The last line was:
>(scsi1) Downloading sequencer code...394 instructions loaded
>
>4. I read the 'README.aic7xxx' and tried to boot with the kernel command
>'aic7xxx=verbose,0x1ffff' and I have and screen full of extra lines, but
>after the mentioned in 3., I have two extra lines
>(scsi1) Resetting channel B
>(scsi1:-1:-1:-1= Signaled a PCI Target Abort.
>
>The last line takes several seconds to appear.
>
>5. I reconfigured the system changing the drive from and scsi port to
>the other, using another disk, using no disks, ... but nothing new.
>
>Please, Help!!!, if it is posible.
>
>
>         Thanks in advance.
>
>         José,
>
>
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