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JoshKurtz · Sep 10, 2005, 09:13 PM

A friend gave me a scsi drive that's 80 pin and another friend gave me a scsi card that has 68 pin connectors on it. I got a converter from eBay along with a 68 pin cable with 5 connectors and a terminator at the end. The drive itself has a bunch of jumper settings but the 80 to 68pin converter has jumpers as well. The drive isn't recognized by my mac and I'm thinking it's because of the jumpers bumping heads somewhere. It's definitely getting power because the drive is spinning.
Anyone have any ideas?

partybymarty · Sep 10, 2005, 09:51 PM

There's a reason why they gave you that outdated garbage which requires so much effort to get working--but that's as far as my psychic abilities go.

Machine it's install in?
Mac OS version?
Make & model of SCSI card & drive?
What the System Profiler is recognizing the card as (if it does at all)?

The 80-pin connector contains all the data, power, and config lines. That's why the adapter has jumpers (because it's eliminating those lines from the 80-pin connector as well as separating out the power lines).

More importantly, not all SCSI protocols are the same. You could have a UltraWide, Ultra2Wide, or Ultra160 card. U160 is backwards compatible with U2W but not UW. Add to that complicated mix the issues of termination, SCSI ID, cable lengths, OS incompatibilities & different firmware versions, and you'll be ready to give that junk away too.

JoshKurtz · Sep 11, 2005, 05:49 PM

Machine it's install in? PowerMac G3 350 MHz rev1 768MB RAM
Mac OS version? 10.3.9
Make & model of SCSI card & drive? The SCSI card says ATTO Express PCI PSC and the drive is a Compaq 9.1 GB Wide-Ultra SCSI-3
What the System Profiler is recognizing the card as (if it does at all)? Card: NCR,875 Type: scsi Bus: PCI Slot: J10
The name it gives is Apple53C875Card.
The Compaq is the only drive I have on there.

partybymarty · Sep 11, 2005, 06:30 PM

You have the Apple OEM ATTO UW card, which is sort of like Adaptec's 2940UW. You need to run the Apple firmware updater on it. Just google it or search Apple's support section for the Apple SCSI firmware. The latest firmware update will make it compatible with OS X.

Waragainstsleep · Sep 12, 2005, 04:16 AM

There are also two kinds of termination: Active and passive. Some types of SCSi need one, some the other. I'm afraid you're going to have to do your homework.

JoshKurtz · Sep 20, 2005, 07:21 PM

I took out the jumpers from both the drive and the converter and it worked. Problem is, I lost power when the drive was formatting and now it won't spin up. Any ideas?