Installing the Adaptec 1460 SlimSCSI Under Windows NT 4.0



Document ID: 98050109

 

Posted Date: 1998-11-11

 

Last Updated: 1998-11-11

 

Distribution: View Public Website

 

Applicable Models
Tecra 750CDM
Tecra 750CDT
Tecra 750DVD
Tecra 780CDM
Tecra 780DVD

 

Issue
After installing an Adaptec SlimSCSI 1460 PC card on Tecra 750/780 models, the system reports a resource conflict with tsbvcap. SVGA video mode and Video Camera function may have become disabled. The system will only boot to VGA mode only.
Procedure
This problem occurs because the default Adaptec driver (sparrow.sys) attempts to use an IRQ that is already in use. Windows NT does not provide a user interface to configure a PC Card to a specific IRQ. Therefore, you must edit the registry to resolve this problem. These steps assume you have already installed the Adaptec driver and the system is not working properly.

Remove the Adaptec driver that has already been installed:

  1. Click "Start", select "Settings" and select "Control Panel", double click the "SCSI Adapters" icon.
  2. Click the "Drivers" tab, select the ADAPTEC SLIMSCSI 16-BIT SCSI HOST ADAPTER and click the "Remove" button. Restart Windows NT.
  • USING THE REGISTRY EDITOR PERFORM THE FOLLOWING STEPS: WARNING:: Using the Registry Editor incorrectly can cause serious, system-wide problems that may require you to reinstall Windows NT to correct them. Microsoft nor Toshiba cannot guarantee that any problems resulting from the use of Registry Editor can be solved. Use this tool at your own risk.
    1. Boot into Windows NT.
    2. Click "Start", select "Run". At the "Open" command line type "REGEDT32.EXE" and press the "Enter" key to start registry editor.
    3. Using "Find Key" under the "View" menu, find the following registry key: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\PCMCIA
    4. From the "Edit" menu, click "Add Value."

      Enter the following values: Value Name: InterruptMask Data Type: REG_DWORD Data: FBFF Radix: HEX

      NOTE: For the Tecra 750/780 series, there is only one free IRQ available after installing sound, video and modem drivers for Windows NT. The available IRQ is 10. By entering FBFF as the Data value it will reserve IRQ 10 for the Adaptec 1460 SlimSCSI adapter. If you also need to configure a network adapter, refer to the information below.

    5. Exit the registry editor. When you exit the registry editor it will automatically save your changes. Restart Windows NT for changes to take effect.
  • RE-INSTALLING THE ADAPTEC 1460 SCSI ADAPTER DRIVER:
    1. Click "Start", select "Settings" and select "Control Panel", double click the SCSI Adapters icon.
    2. Click the "Driver" tab and click the "Add" button.

      Select the following information: Manufacturer: ADAPTEC SCSI Adapter: ADAPTEC SLIMSCSI 16-BIT SCSI HOST ADAPTER

    3. Restart Windows NT when prompted. The Adaptec SlimSCSI 1460 PC card should work properly at this point.

    MORE INFORMATION: If you are unable to add a PCMCIA network adapter in addition to the Adaptec 1460 card due to an IRQ shortage, try the following suggestion: Free up IRQ's by disabling unused devices. For example, serial port COM1: may be disabled to free up IRQ 4. To disable COM1, Click Control Panel/Ports and remove COM1. Restart Windows NT and try to configure the network adapter on IRQ4 if supported. Use the DeskStation V+ SCSI controller instead of the Adaptec 1460. The DS V+ SCSI is PCI based and does not require a dedicated IRQ. If both the Adaptec 1460 SCSI and an additional Network adapter are required at the same time, then create a separate hardware profile so that only one device can be started in each profile. For example, create a SCSI profile and a NETWORK profile. Click Control Panel/Devices and configure the network adapter driver to only start in the NETWORK profile and Adaptec driver to only start in the SCSI profile.

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