Green power light does not come on, or a Zip disk won't insert.
The Zip drive is not assigned a drive letter
Computer does not start up properly after installing Zip drive
Zip drive transfer speed seems slow
You want to use Windows 95/98 DOS mode with your Zip drive
You want to change the drive letter assigned to your Zip drive
Data transfer problems or drive operation is erratic
Disk automatically ejected when inserted into a Zip drive
Extension Conflicts (Mac Users Only)
Problems with software dongles or other pass-through devices
Problems installing IomegaWare software.
Using your Zip drive on another computer

Troubleshooting

If you encounter a problem while installing or using your Zip SCSI drive, check this section for possible solutions. For additional help options, refer to How to Get Help.

CAUTION! To prevent damage to computer equipment, turn off electrical power before connecting or disconnecting any cables.

Green power light does not come on or a Zip disk won't insert.

  1. Make sure you are using an Iomega Zip 250 power supply and that it is connected to the Zip drive as shown in Connecting Your Zip Drive.

  2. Make sure the power supply connector is completely inserted into the Zip drive power connector.

  3. Press the power/eject button on the front of the Zip drive and check that the green activity light comes on.

  4. Make sure that you are using a genuine Zip disk.

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The Zip drive is not assigned a drive letter (icon does not appear on the desktop).

This could be due to a hardware installation problem or to a resource or software conflict on your computer system. The following suggestions will help you check your installation:

WindowsZip 95/98/Me and Windows NT®/2000 Users

  1. Turn off your computer and disconnect power from the Zip drive. Turn on the computer first, then immediately connect the Zip power supply (or use a power strip to turn on both at the same time). Make sure the green activity light in the center of the power/eject button is on.

  2. Make sure you are using the data cable that came with the Zip drive.

  3. Make sure none of the pins on the Zip data connector are bent and that the data cable is connected as shown in Connecting Your Zip Drive.

  4. Make sure the cable connections are straight and on all the way. Tighten all connector screws firmly and evenly, both on the connection to the Zip drive and to the computer.

  5. Make sure the Zip drive is connected to a SCSI connection on the computer. (Use a Zip Zoom PCI SCSI adapter (card) that is installed inside the computer). This model of the Zip drive will not work if it is connected to a serial or a parallel (printer) port.

  6. Try reinstalling IomegaWare software. If IomegaWare software is already installed, remove it using Add/Remove Programs in the control panel, restart Windows®, then reinstall the IomegaWare software.

  7. Try changing the SCSI mode on your computer. (See the documentation that came with your computer for instructions.) If the computer still doesn't recognize the Zip drive, the SCSI card on the computer may not be compatible with the Zip drive. Try installing the Zip drive on a different computer. If a different computer recognizes the Zip drive, the problem may possibly be an incompatible SCSI card. To solve this problem you need to add a new SCSI card to your computer.* If neither computer recognizes the Zip drive, refer to How to Get Help.

Installing IomegaWare should automatically install the Iomega Zip SCSI driver needed to support the Zip SCSI drive. If the Zip SCSI drive is not assigned a drive letter under Windows NT® 4.0, try manually installing the driver by using the following steps:

NOTE: You must have administrator privileges for your local computer in order to install the Iomega software or the Zip SCSI driver under Windows NT®.

  1. Click Start, Settings, and then click Control Panel.

  2. Double click SCSI Adapters.

  3. Select the Drivers tab and click the Add button.

  4. Select Additional Models.

  5. Select the Iomega Zip SCSI driver from the list of adapters.

    NOTE: If the Iomega Zip SCSI driver is not listed under Other Adapters, try reinstalling the IomegaWare software.


  6. Click Next to continue, then click OK for Windows NT® to install the necessary adapter driver on your system.

  7. Click OK to exit.

  8. Reboot your system for the new driver to take effect.

Windows® 2000 Users

  1. Turn off your computer and disconnect power from the Zip drive. Turn on the computer first, then immediately connect the Zip power supply (or use a power strip to turn on both at the same time). Make sure the green activity light in the center of the power/eject button is on.

  2. Make sure you are using the data cable that came with the Zip drive.

  3. Make sure none of the pins on the Zip data connector are bent and that the data cable is connected as shown in Connecting Your Zip Drive.

  4. Make sure the cable connections are straight and on all the way. Tighten all connector screws firmly and evenly, both on the connection to the Zip drive and to the computer.

  5. Make sure the Zip drive is connected to a SCSI connection on the computer. This model of the Zip drive will not work if it is connected to a serial or a parallel (printer) port.

  6. Try manually assigning a drive letter to the Zip drive.

    NOTE: You must have administrator privileges for your local computer to change drive letters under Windows® 2000.

    • Select Control Panels, Administrator Tools, Computer Management, then Disk Management.

    • Right click the icon for the Zip drive and select Change Drive Letter & Path from the shortcut menu.

    • Click the Edit button.

    • Click on Assign a drive letter and select the letter you want to use for your Zip drive.

  7. Try changing the SCSI mode on your computer.(See the documentation that came with your computer for instructions.) If the computer still doesn't recognize the Zip drive, the SCSI card on the computer may not be compatible with the Zip drive. Try installing the Zip drive on a different computer. If a different computer recognizes the Zip drive, the problem may possibly be an incompatible SCSI card. To solve this problem you need to add a new SCSI card to your computer.* If neither computer recognizes the Zip drive, refer to How to Get Help.

*Iomega has approved the use of Warp Nine Engineering's add-on card WarpExpress, which is fully compatible with the Zip drive and will actually improve your drive's performance. Contact Warp Nine Engineering on the World Wide Web at http://www.fapo.com, or call 1-619-292-2748 for sales information.


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Computer does not start up properly after installing the Zip drive. Computer hangs on reboot or does not operate correctly.

Some computers will not start or operate correctly if a device connected to the SCSI receives power before the computer is turned on. Try the following:

  1. Turn off your computer and disconnect power from the Zip drive.

  2. Turn on the computer first, then immediately connect the Zip power supply (or use a power strip to turn on both your computer and your Zip drive at the same time).

  3. Press the power/eject button on the front of the Zip drive and check that the green activity light comes on.

If the computer still does not start correctly, the problem is probably due to a resource or software conflict on your computer system. Disconnect the Zip drive from the computer and restart.

If the computer does not restart:

  1. Make sure that all SCSI connections are on all the way.

  2. Tighten all connector screws firmly and evenly, both on the connection to the Zip drive and to the computer

  3. Make sure that each device in the SCSI chain has a unique SCSI ID number (no duplicates) and that the SCSI chain is correctly terminated.

If the computer still does not restart:

PC Users only

Disconnect the Zip drive from the computer and get additional help by clicking How to Get Help and choose your region.

MAC Users only

There may be an extension conflict on your system. Refer to the Extension Conflicts section.



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Zip drive transfer speed seems slow.

If you are writing to a 100MB Zip disk in your Zip 250 drive, transfer speed will be significantly reduced due to the higher capacity of the Zip 250 drive. See Compatibility with 100MB Zip disks.


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You want to use Windows® 95/98 DOS mode with your Zip drive.

NOTE: This section describes how to switch in and out of the MS-DOS mode which is a start option for Windows® 95/98. It does not apply to the DOS box (or window) that opens when you double click the MS-DOS Prompt icon within Windows 95/98. Use of the DOS box with the Zip drive works the same as it does with any other drive under Windows 95/98.

If you want to use Windows® 95/98 DOS mode with your Zip drive, copy the DOS drivers folder from your IomegaWare software on the Solutions CD to your hard drive. Right click on the CD icon and select Explore. Double click on the Drivers folder and drag the DOS folder to a new folder on your hard drive.

CAUTION! Do not put the Windows® 95/98 DOS mode drivers in your autoexec.bat file. This will cause Windows 95/98 to run in real mode, which will result in a significant decrease in system performance.

In order for the Zip drive to operate properly in Windows® 95/98 DOS mode, you must perform a clean reboot when switching to or from DOS mode. Do not use the option on the Windows 95/98 Shut Down menu that reads: "Restart the computer in MS-DOS mode." This option does not fully support the Zip drive.

To switch to DOS mode:

  1. Restart the computer and press F8 just before the full-color Windows® logo screen loads. (If you are using Windows 95, look for the text line "Starting Windows 95" to appear on the screen. If you are using Windows 98, watch for a black screen with a blinking cursor.)

  2. When the menu appears, select Command Prompt Only

  3. After the system boots into DOS mode, run guest.exe from the location on your hard disk where you copied the DOS drivers folder.

This procedure will provide access to any Iomega drives on the system. To return to the Windows® 95/98 graphical interface again, restart the computer.

NOTE: Do not type win at the DOS prompt after running guest.exe; this causes duplicate drive letters.

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You want to change the drive letter assigned to your Zip drive.

The operating system controls drive letter assignments. To change a drive letter assignment, you must use the procedures required by your computer's operating system.


Windows® 95/98/Me Users
If your computer is running Windows® 95/98/Me, you can change drive letters for any of your removable drives (including your Zip drive and CD-ROM drive) by using Drive Letter Manager in IomegaWare software.

  1. Right click on the Zip drive icon in My Computer or Windows Explorer.

  2. Select Properties.

  3. Click the Iomega tab.

  4. Click the Drive Letter Manager button.

  5. Drive Letter Manager displays the current drive letters assigned on your system.

  6. To change the drive letter for any removable drive, click the drop-down arrow next to the current drive letter and select the drive letter you want to use. Restart your system for the changes to take effect.

Windows NT® 4.0 Users
If you install Windows NT® 4.0 Service Pack 4 or above, you can use the Windows NT Disk Administrator to change drive letters for removable drives (such as the Zip drive); however, there are still some technical limitations. For additional information on changing drive letters under Windows NT, refer to the MS Knowledgeable on the Microsoft® Corporation web site at http://www.microsoft.com.

Windows® 2000 Users
The following instructions describe how to change drive letters for removable drives under Windows® 2000.

NOTE: You must have administrator privileges for your local computer in order to change drive letters under Windows® 2000.

  1. Select Control Panels, Administrator Tools, Computer Management, then Disk Management.

  2. Right click the icon for the Zip drive and select Change Drive Letter and Path from the shortcut menu.

  3. Click the Edit button.

  4. Click on Assign a drive letter and select the letter you want to use for your Zip drive.

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Data transfer problems or drive operation is erratic.

  1. Make sure the Zip data cable is correctly connected to both the drive and the computer as shown in Connecting Your Zip Drive.

  2. Make sure all cable connections are straight and on all the way. Tighten connector screws firmly and evenly, both on the connection to the Zip drive and to the computer

  3. There may be a problem with the SCSI I/O card in your computer. Refer to the information listed above.

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Disk automatically ejects when inserted into the Zip drive.

Make sure you are using a genuine 250MB Zip disk or a genuine 100MB Zip disk. If you attempt to insert a non-Zip disk into the Zip drive, the drive automatically rejects the disk.

Extension Conflicts (Mac Users Only)

What is an Extension Conflict?

An extension is a software application or driver used to enhance the operating system or access different pieces of hardware on your Macintosh®. Many of these extensions are used to control hard drives and other types of removable media, including Zip and Jaz® drives. An extension conflict occurs when an extension is placed in the extensions folder that overwrites the Iomega driver.

Iomega has developed widely compatible extensions for its Zip and Jaz drives; however, some software applications and extensions may not work correctly when used with your Zip or Jaz drive.

IMPORTANT! It is advised that you obtain the latest software release for the extension that is conflicting with the Iomega extension. Software developers often address known conflicts in later versions of their extensions.

Driver Manufacturer World Wide Web Addresses:

Apple Computer. Inc.
 www.apple.com
APS Technologies
 www.apstech.com
Casa Blanca Works, Inc.
 www.proline.com
CharisMac Engineering, Inc.
 www.charismac.com
FWB Software
 www.fwb.com
La Cie
 www.lacie.com
Software Architects, Inc.
 www.softarch.com
Surfcity Software
 www.surfcty.com

If your installation appears to be OK and the problem continues, there may be an extension conflict on your system. Try the following procedure to test for conflicts:

  1. Insert a Mac-formatted Zip disk into the Zip drive.

  2. Hold down the Shift key and restart your Mac. Make sure you hold down the Shift key until you see the message indicating that extensions are off or disabled.

  3. If the Zip disk icon appears on your Desktop, the problem is probably an extension conflict. If you have an extension conflict, try renaming the Iomega Driver by adding three or more spaces at the front of the driver name. This will cause the Iomega Driver to load first and should avoid the conflict. (You will find the Iomega Driver installed in the Extensions folder inside the System folder on your Mac hard disk.) If this solution does not work, refer to the Known Extension Conflicts section below.

Known Extension Conflicts

Listed below are some of the known extensions that conflict with the Iomega extensions. Possible solutions for each are on the following pages.

NOTE:

Control Panels and Extensions are located in your System folder. If you need additional information on disabling them beyond what is provided in this guide, detailed instructions are included in the Macintosh System help file.

Conflicting Extensions
Solution 1
Solution 2
Solution 3
Anubis v 3.0 and earlier
X

 

 
APS PowerTools v 4.0.9
X

 

 
AutoRemounter
X

 

 
DOS Mounter 95™

 
X

 
Drive7 v 4.1.8
X

 

 
FormatterFive

 
X

 
FormatterOne Pro SE v 1.5.1
X

 

 
FormatterOne Pro v 2.1
X

 

 
FWB Hard Drive Toolkit v 2.5 and earlier

 

 
X
FWB Hard Drive Toolkit PE v 2.0.6
X

 

 
Lido 7.56 (not compatible with Mac OS 8)
X

 

 
Mt. Everything
X

 

 
SCSI Probe
X

 

 
Silverlining®*
X

 

 

*Some versions of Silverlining install the “Silver INIT” and should be disabled when using the Iomega driver.

WARNING Iomega does not support third party drivers. Iomega cannot guarantee the integrity of your data if you use a drive utility extension other than the Iomega driver extension to control your Zip drive.

Solution 1: Remove Non-Iomega Disk Utilities

It is recommended that you remove third-party disk utility drivers from your Extensions Folder. Most disk utility programs will run without their extensions installed.

To Disable Extensions:

  1. Select the Apple Menu and then Control Panels.

  2. Double click the Extensions Manager icon.


  3. Find the drive utility extension for the software that is conflicting with the Iomega extension and deselect it. (See table under Known Extension Conflicts)


  4. Restart your Macintosh.

Solution 2: Disabling DOS Mounter 95™ or Mac-PC Manager

Disable both the extensions and control panels for these disk utilities.

To Disable Control Panels and Extensions:

  1. Select the Apple Menu and then Control Panels.

  2. Double click the Extensions Manager icon.


  3. Find the drive utility control panel and extension for the software that is conflicting with the Iomega extension and deselect it. (See table under Known Extension Conflicts page 41.)

  4. If DOS Mounter 95™ or Mac-PC Manager moved the PC Exchange extension to a folder on your desktop, place it back in the System extensions folder.

  5. Restart your Macintosh.

If you need access to PC formatted disks you can reinstall PC Exchange from your original system disk(s).

Solution 3: FWB Hard Disk Utilities

Use FWB Tool Manager™ to remove FWB control over the SCSI IDs that correspond to your Iomega drive(s). Consult your FWB Hard Disk Toolkit manual for information on setting options for your FWB Tool Manager.

Other Known Conflicts

Power PCs Running System 7.1.2

Upgrade to System 7.5 or greater or download the Iomega Installer version 5.0.3 from the Iomega web site. If you also have a Jaz drive, you should upgrade to System 7.5 or greater.

Connectix RAM Doubler™ 2.0.2

If you are using System 7.5 through 7.6.1, you should remove RAM Doubler from the extensions folder. Mac OS systems released before 7.5, and later systems like System 8.0, do not have conflicts with RAM Doubler.

System 7.5 through 7.6.1 Memory Control Panel

If you are using System 7.5 through 7.6.1, you should turn Virtual Memory off if you are using the Iomega driver. Mac OS systems released before 7.5 and later systems like System 8.0 do not have conflicts with Virtual Memory.

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Problems with software dongles or other pass-through devices.

Because there is no single set of SCSI specifications accepted across the industry, there are some SCSI/multi I/O adapters, SCSI peripherals, and software dongles that are not fully compatible with the Zip drive. If you use these devices, it would be best to add another SCSI to your computer.* If you plan to use software dongles on the same SCSI connection as your Zip drive, contact the provider for your dongle before connecting it to make sure you have a device that is compatible with the Zip drive.

*Iomega has approved the use of Warp Nine Engineering's add-on card WarpExpress, which is fully compatible with the Zip drive and will actually improve your drive's performance. Contact Warp Nine Engineering on the World Wide Web at http://www.fapo.com, or call 1-619-292-2748 for sales information.

Problems installing IomegaWare software.

If the IomegaWare software does not install correctly, try reinstalling it.

Using your Zip drive on another computer.

To use your Zip drive on another computer, first install the software. After the software is installed, connect the drive.

CAUTION: This model of Zip drive cannot be used with an iMac™. Use the Zip USB drive.

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Iomega Corporation
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