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Old 08-04-2009
Join Date: Apr 2009
Posts: 732
How to Connect SCSI Devices to a Mac

Hi all.. I need some urgent solution. One of my friend has bought Mac OS few days back. He don't know how to connect SCSI devices to his PC. Even i can not help him because i am a Windows user since start.

So could any one of help me in this case ?

Its urgent friends..
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Old 08-04-2009
Dr. V
Posts: n/a
Re: How to Connect SCSI Devices to a Mac

SCSI stands for Small Computer System Interface. It is a standard method for connecting computers and peripheral devices like hard disk drives, CD-ROM drives, printers, and scanners. SCSI ports, cables, and terminators are usually labeled with the SCSI icon which looks like a diamond-shaped G.

To connect a SCSI device to your computer, you need a SCSI port. All older Macintoshes have built-in SCSI ports. Most newer Macintoshes do not come with SCSI ports; they are optional on the higher-end machines. You can add a SCSI card to a Macintosh that uses the PCI bus.

Now, to connect connect SCSI Devices, follow this steps:-

1. Install the SCSIProbe control panel if you don't already have it in your system.

2. Shut down the computer.

3. Connect the SCSI cable to the SCSI port on your computer (each end of the cable may be different). Securely tighten hand screws.

4. Connect the other end of the cable to the input SCSI port on your SCSI device. Securely tighten hand screws or fasten clips.

5. Connect the cable for a second SCSI device to the output SCSI port on the first SCSI device. Repeat these steps for up to seven devices.

6. Put a SCSI terminator on the last device in the SCSI chain (unless the device has built-in termination).

7. On each SCSI device, look for some sort of box with a number on it, usually on the back of the device, near the ports. You can change the number, usually by pressing a button near the number box. Make sure each device in the SCSI chain has a unique number.

8. Connect power cords for the SCSI devices to a surge suppressor.

9. Turn on the devices.

10. Insert removable media into any SCSI devices that use removable media.

11. Turn on the computer. Your devices should appear on the desktop.

12. Open SCSIProbe.

13. If a device doesn't appear on the desktop, select it in SCSIProbe and click Mount.

Thats it...
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Old 08-04-2009
Join Date: May 2008
Posts: 2,676
Re: How to Connect SCSI Devices to a Mac

Most storage devices, such as hard drives, CD-ROM drives, and scanners are connected to the Macintosh using SCSI. The 25-pin port is located on the back of your desktop Macintosh. You can recognize the SCSI port by the diamond-shaped SCSI icon above it. (On PowerBook models the port is a 30-pin square connector.) Peripheral devices typically have a 50-pin Centronics connector on them (it is longer and wider than the SCSI port on your Macintosh).

Your Macintosh can have a total of seven SCSI devices connected to it (the Workgroup Server 95 can have up to 20 devices). If you have System 7.5 and use the SCSI Manager 4.3, you can have up to 14 SCSI devices, 7 per bus on the Quadra 900 and 950 and the Power Macintosh 8100/8150/9150. Internal hard drives, internal CD-ROM drives, and other internal storage devices are included in this limit of seven devices. This does not include floppy drives, which are not SCSI devices.
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Old 08-04-2009
Join Date: Feb 2009
Posts: 162
Re: How to Connect SCSI Devices to a Mac

Your computer's hard disk is usually assigned the SCSI number 0 (zero), and an internal CD-ROM drive is usually assigned the number 3. Don't assign your external devices these SCSI numbers. You can open SCSIProbe to check the numbers of any internal SCSI devices before you set up the chain.

If you have a removable media drive, such as a Zip drive, put it at the end of the SCSI chain if possible
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