Tech Note 253 Detail

Windows requests driver for "Unknown Device" after installation of 700 or 750 Interface

Affected Products:

CI-6450 ScienceWorkshop 750 with SCSI Interface

I've connected the ScienceWorkshop 750 Interface (or 700 Interface, CI-6560 Signal Interface II) to my computer's SCSI port, but the Windows Add New Hardware Wizard requests drivers for an "Unknown Device" every time I boot up. What should I do?

PASCO Solution:
Unlike most hardware, PASCO's SCSI interfaces do not require Windows-level device drivers. The SCSI interfaces should appear under the "Unsupported Devices" rubric in the Windows Device Manager. To prevent Windows from requesting a driver, please follow these steps when the Add New Hardware Wizard appears at bootup:
  1. Disable any anti-spyware/anti-virus software that you have running.
  2. Direct the Add New Hardware Wizard to search for a driver for the device.
  3. De-select all search locations.
  4. When the Wizard reports that it was unable to locate a driver for the device...
    • Windows 98:
      • Select Next, then Finish.
    • Windows 2000 or XP:
      • Choose the "Disable the device" option and click Finish.
The Interface will be installed correctly as an "Other Device" in Device Manager, as shown in the image below. You should not be prompted again for a driver by the Add New Hardware Wizard.

Diagram 1: Device Manager after proper installation of the ScienceWorkshop 700/750 Interfaces
If you still have problems, see Tech Note 368.
Related Technotes:
TechNote 243 Undetected 700/750-SCSI on a PC.
TechNote 368 Win2k/XP endlessly detects the ScienceWorkshop 700/750 interface.

Creation Date: 10/17/2001
Last Modified: 12/1/2004
Mod Summary: