[qanda]This question is published in the hardware section for the Optiarc AD-7540A. Click here to view full specs.[/qanda]the device is only visible in device manager marked with problem sign but neither can be seen in windows explorer nor be used!? though the driver information says it has the latest driver.
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There should be an error code number in the Properties of the drive. If you can let us know what it is, plus the version of Windows you're running, we should be able to help.
the device can not start ( code10) i'm using windows vista home premium. lasse313