Quote:
Originally Posted by RX_Renesis
ever seen these kinds of header? yes these r usb pins without the locating pin.
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Yes I have seen and used those, they were typical on older custom cases. I have even had them the wrong way around a few times myself because sometimes it can be difficult to see when installing. All that would happen is the USB port would not work, then I'd just rearrange them properly and the port would work fine. A catastrophic failure like the OP had NEVER happened. You still can't cause a SHORT between V+ and ground even if you get those wrong.
To cause a short on V+ and ground, you'd have to bend over the V+ pin on the motherboard so it touched the Ground pin. Or shove a chunk of metal into the front panel USB port so that the V+ and ground pins there were connected.
Either way, the OP said that the computer worked fine for a couple years before this happened, which makes this argument irrelevant. You really had no good reason to flame him.