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| Connecting a ZIP drive to a Macintosh Plus |
Posted by: altayd9 on 2019-08-20 19:49:14
How do you run the Iomega drivers on a mac plus? I keep getting application is busy or missing, no matter where it is. I put it in a system disk and it doesn't load the drivers on boot, I get the icon with an X on it. No matter what I do I can't get the ZIP drive recognized. It is the correct SCSI drive too but I don't have the original cable, I'm substituting one that fits.
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Posted by: dochilli on 2019-08-21 00:31:48
Here is a website that may solve your problems:
https://web.archive.org/web/20061016105753/http://www.jagshouse.com/zipMacPlus.html
I have got bootable Zip-disks by formatting them with Lido.
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Posted by: MarNo84 on 2019-08-21 00:58:25
How do you run the Iomega drivers on a mac plus? I keep getting application is busy or missing, no matter where it is. I put it in a system disk and it doesn't load the drivers on boot, I get the icon with an X on it. No matter what I do I can't get the ZIP drive recognized. It is the correct SCSI drive too but I don't have the original cable, I'm substituting one that fits. You just need some drivers / tools - and for sure a suitable 25/25pin straight cable as scsi cable. If you have another Macintosh with OS 7.x available, I can send you my files/images 🙂  it depends on your startup disk whre to put the iomega driver file. usually you have to put it under the System Folder .. take a look on my Video - sorry, it's long and only German audio :/  .. but should help a little: Â
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Posted by: bibilit on 2019-08-21 04:47:28
Silly question, but what kind of Zip drive have you got ? the standard SCSI one or the Plus ?
IIRC the version on the driver is mandatory to get a working disk.
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Posted by: LaPorta on 2019-08-21 07:52:56
To my recollection, you need Iomega Driver 4.2 or older for this to work. I used to start from a Zip disk prior to changing to a Floppy Emu
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Posted by: Dog Cow on 2019-08-21 15:14:41
How do you run the Iomega drivers on a mac plus? I use Iomega Driver v5.0.3 under System 7. This driver will also work on a Mac 512Ke with RAM and SCSI upgrades.
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Posted by: LaPorta on 2019-08-21 15:37:42
That will work unless you are trying to use the Zip Disk as the startup disk. I’m not sure if this is what he is trying to do. Perhaps the Zip drive itself is busted.
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Posted by: altayd9 on 2019-08-21 21:01:20
I have the Z100S2 with Termination on and I've tried both SCSI id's. I'm not trying to use it as a startup disk. But the driver I have is 4.2 and its on the floppy from rescuemyclassic mac.
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Posted by: bibilit on 2019-08-21 23:24:40
The Plus can be picky with SCSI
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Posted by: Dog Cow on 2019-08-22 15:13:30
No matter what I do I can't get the ZIP drive recognized. It is the correct SCSI drive too but I don't have the original cable, I'm substituting one that fits. Does your Zip drive show in SCSI Probe? If not, then probably your cable is bad.
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Posted by: altayd9 on 2019-08-22 15:14:37
What is SCSI Probe?
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Posted by: Solvalou on 2019-08-22 15:31:24
What is SCSI Probe? Software that searches the SCSI bus and it's corresponding ID's.Â
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Posted by: trag on 2019-08-22 15:48:25
The Mac Plus lacks internal SCSI termination.   So, you either need a really short SCSI cable, so that both ends of the SCSI chain look like one end, electrically, or you need a pass-through 25 pin terminator between the Plus and cable.
This may not be your only problem, but it can be a problem.
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Posted by: jimjimx on 2019-08-23 01:56:29
Ok first try a REAL SCSI cable, not one of those printer cables for Microsoft computers..
If that doesn’t work, try a different Zip drive.Â
Its got to be one of those problems.Â
The only other thing I can think of....
Is the Zip drive plugged into a zip PSU (5VÂ 1A, Neg Gnd), and does the light turn on when first powered up?
Are there any indications that the Zip drive has power?
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