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9-12 System USB Port Test Error<br />
An error occurs when a USB device is installed<br />
USB Test Error<br />
1. Check if the USB device is installed<br />
properly. (Including D/D board).<br />
Test<br />
ok ?<br />
Yes<br />
Try another known good D/D<br />
board or good USB device.<br />
Re-test ok<br />
Replace motherboard<br />
Board-level<br />
Troubleshooting<br />
No<br />
Yes<br />
Correct it.<br />
Correct it.<br />
72<br />
Check the following parts:<br />
Parts:<br />
Signal:
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