Re: Optiplex 755 only turns on through power supply button, no video output.

Hi HeadOnAPike,

What I will say is that the broken USB port on the front I/O panel will require a replacement I/O panel for your system as well as a replacement motherboard - damaged USB ports can cause short circuits which can cause these problems.

I've sent you a private message - if you can reply, it would be very much appreciated.

John C
Dell | Social Outreach Services

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