On Sep 13, 2005, at 2:31 PM, PCI PowerMacs wrote:

Subject: Re: [PCI] Mac 7300 and SCSI-Adapters 50-pins -> SCA
From: "de Runtz, Lars" <[EMAIL PROTECTED]>

I have 3 9500's with 2 SCA drives each in them. They all work fine, and = I didn't have to use any funny drive tools to format them. 1 has Linux =
on it, the other have OS X 10.2.  Oh, and a couple used in external =
cases...

As far as jumpers, stick to just jumpering on the adapter, and stick to = just jumpering those jumpers, you KNOW you need to jumper, like the ID.

-Lars
And what do you do if you want it at the end of a chain and terminated? Not want this? Use a special terminated ribbon cable? Is yours in the middle of
a chain?

I have never had any luck terminating an SCA drive, meaning that they always ended up needing to be in the middle of a chain. Internally I made sure another drive was at the end of the chain and externally I kept another device at the end of the chain.

I never had an adaptor that had any termination jumper. Some SCA drives have had a jumper on the drive itself for termination (perhaps they all did, I do not recall), but when I tried that I could not get the drive to work.

Yet I have had several SCA drives over the years and they have always worked well and been very reliable.

bill


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