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Cathodes causing reboot?

B

BSEagle1

Senior member
So we just built a brand new small form factor machine in an X-Qpack case from Aspire. We ordered a couple of blue cathode lights with it.

The machine runs flawlessly, with one exception: Everytime the cathodes are switched on...the computer reboots shortly thereafter. It never does this if the lights are -off-.

My first thought was a power issue...but wouldn't that be a direct shutdown? And, it's a 420 watt supply in a Small Form Factor machine...surely that is more than enough power even with a couple of lights?

My second thought was that maybe there was an issue with the switch or the cathodes sending a current through the case. But, there are no loose wires.

What could be causing this? It's not crippling, but it's odd. Should we try switching it to a different molex plug?

Any input appreciated.
 
First guess is that the transformer assembly for the CCFL tubes wasn't made well, and some of the high frequency interference is going back through the line.
Or, the transformer's EM radiation could be causing problems with nearby components. Where is the inverter located relative to other major components?
 
We have it velcroed to the side of the external bays, where the DVDROM slides in. This is about...4 inches from the CPU, and -right- next to the video card.
 
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