When I attach a Tableau forensic bridge to my computer via FireWire, I hear the fans running in my computer even though the computer is turned off. What is happening?
There is a power wire in standard 6- and 9-pin FireWire cables, and many FireWire devices (including FireWire host adapters and Tableau forensic bridges) are designed to provide power to this wire. In each device which provides power to a FireWire cable there is circuity to prevent power from flowing from the cable back into the device. This circuity usually includes an electrical component called a diode. Tableau has found that some FireWire host adapters are mis-manufactured, and the diode in these FireWire host adapters is backwards. When this happens, power can flow from the Tableau forensic bridge into the host computer through the FireWire host adapter. Unless you are very good with a soldering iron, the only solution is to use a different FireWire host adapter which is properly manufactured. This is not a defect in the Tableau forensic bridge.
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