Use this information to solve USB port problems.
Table 1. USB port problems. A table with one spanned column at the top and two additional columns with headers. This table provides information about symptoms and user actions to solve USB port problems.
- Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved.
- See Parts listing, Lenovo System x3750 M4 Type 8753 to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
- If an action step is preceded by (Trained service technician only), that step must be performed only by a Trained service technician.
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| Symptom | Action |
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| A USB device does not work. | - Make sure that the correct device drivers are installed on the server. See the production documentation for the USB device or the manufacturer’s website for information about the device drivers.
- Use the Setup utility to make sure that the device is configured correctly (see Using the Setup utility).
- If the USB device is connected into the hub or the console breakout cable, disconnect the device and connect it to a USB port on the server.
- Run the DSA USB diagnostic test (see Running the DSA Preboot diagnostic programs).
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