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jeanclaudevanlee's picture
Joined: 2013 Jan 23
Installing ZIP drive on Classic

I''ve been trying to install my Iomega ZIP drive on Macintosh Classic running OS 7.1
There are some instructions I've found online but every time I plug my ZIP drive it starts to boot from it immediately showing Question Mark Diskette icon so I cannot proceed with Iomega Driver installation.

Is it a problem with my SCSI ID, do I need to change that to proceed?

Thank you so much for any help!

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devils_advisor's picture
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Joined: 2012 Jul 9

Any device on a scsi bus needs its own number. On top of that if you dont terminate the last device you get some strange behavior out or no function at all.

jeanclaudevanlee's picture
Joined: 2013 Jan 23

I understand but how to assign a ID number for SCSI device? Is is anywhere in the Control Panel?

Thanks!

devils_advisor's picture
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Joined: 2012 Jul 9

Look on the backside of the device. There must be a little clear part with a number on it and some buttons to change the number. Make sure you turned everything off before you change that. Also the scsi controller got its own number you need to find out which one because if that number matches a device on the scsi bus the whole thing dont work. As for finding out about the id, the onboard tools that come with the os give you the info.... like the program to format a disk it will show you whats connected to the computer with bus info. There are some tools here available. I look it up.

devils_advisor's picture
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Joined: 2012 Jul 9

http://macintoshgarden.org/apps/transoft-scsi-director

use it to get infos about your scsi bus

jeanclaudevanlee's picture
Joined: 2013 Jan 23

Thanks a lot! It's just a classic external Iomega Zip 100 Drive and unfortunately there is no ID number or ID switch on the device to check/change. I've just installed Transoft SCSI Director but it only shows my HD on ID 0 and to proceed I need to connect ZIP drive to SCSI port but every time I do that I get back automatically back to the Question Mark Diskette icon.

I'm a bit lost here but will keep on trying!

devils_advisor's picture
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Joined: 2012 Jul 9

Can you give me the model infos so i can find out how to change it?

jeanclaudevanlee's picture
Joined: 2013 Jan 23

Yes this is Iomega Z100P2 Parallel Port Zip Drive

devils_advisor's picture
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Joined: 2012 Jul 9

Jesus that makes sense now its not scsi at all. Thats a parallel port drive. Are you sure it is compatible with macs uf so you need a driver for it thats what i believe.

jeanclaudevanlee's picture
Joined: 2013 Jan 23

Ahhhh my fault! Sorry for that, thought it's a SCSI ZIP drive. Will look for a suitable driver if it's available at all. And thanks so much again for helping to figure it out. Hah!

jeanclaudevanlee's picture
Joined: 2013 Jan 23

Ok seems it's not working with Macintosh Classic. I bought it labeled as SCSI ZIP drive. Guess will have to look for Z100S2 instead.

themacmeister's picture
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Joined: 2009 Oct 26

I am in the same boat, but with a 250MB parallel port ZIP drive Sad

I need to find a Windows XP machine (or build one) so I can check and reformat all my blank ZIP disks. I will then dump the drive and concentrate my efforts looking for a 100MB Zip+ drive (with parallel AND SCSI support).

SuperMew98's picture
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Joined: 2013 Mar 14

I am in this boat, too. I have a Z100S2 drive, but the Tools Disk was reformatted. I'm not sure what to do here.

sfp1954's picture
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Joined: 2013 Dec 29

You don't need the tools disk to start out.
All you need is the driver/system extension which will fit on a floppy drive.
You just need to determine which driver version you need for the OS you are trying to run.
The Iomega driver is built into Mac OS 8.6 and above.

http://macintoshgarden.org/apps/iomega-zip-install-disk-v42
http://macintoshgarden.org/apps/iomega-zip-tools-431
http://macintoshgarden.org/apps/iomega-zip-installer-551

SuperMew98's picture
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Joined: 2013 Mar 14

Here's a page I just found on SCSI ZIP drives. It might come in use: http://www.mercenary.ca/articles/macs_zip_drives.php