Motherboard fails when particular USB device plugged in.

roflmuffin

Reputable
Aug 2, 2014
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Just finished building a PC. Everything went fine and used keyboard to install Windows etc. After plugging in my mouse, I got a warning that a usb controller was surging. I restarted, this time both USB devices (keyboard and mouse) were working. As soon as I even breathed on the mouse cable, I got the power surge message again, and they stopped working. This happened a few more times, but eventually one time after I shut down, the computer didn't turn on at all. No power was being sent to any part of the system (Leds on GPU were unlit). I reseated the 24 pin power cable but nothing happened, however I removed the mouse USB and reseated the 24 pin and power was restored. Should be noted that power didnt restore until I reseated the 24 pin.

I cannot currently test the mouse in another computer but plugging it in seems to kill this computer. Every other usb device works fine and I can put them in any slot etc.

Mobo is: Sniper G1 B5.

Any ideas?
 
Solution
Well the board has usb short circuit protection/ warning.
As well as Usb over voltage, in other words if a device tries to draw more than 5v+.

If the board detects and error, then depending on what is set in the bios and its power states it will Isolate the board from being powered up fully.

It can also depending on the fault. Send a signal to the Psu, as that has protection circuits to stop a full power up.
Obviously you have an issue with the mouse. Its normally that the current is hitting the earth point.

It works the same way as a trip switch in a house.

If any short is present, and is sent to ground other than a plus or minus in a circuit the Switch trips to prevent damage from overload.
Well the board has usb short circuit protection/ warning.
As well as Usb over voltage, in other words if a device tries to draw more than 5v+.

If the board detects and error, then depending on what is set in the bios and its power states it will Isolate the board from being powered up fully.

It can also depending on the fault. Send a signal to the Psu, as that has protection circuits to stop a full power up.
Obviously you have an issue with the mouse. Its normally that the current is hitting the earth point.

It works the same way as a trip switch in a house.

If any short is present, and is sent to ground other than a plus or minus in a circuit the Switch trips to prevent damage from overload.
 
Solution