IBM 88643RU Service Guide - Page 108
keyboard, mouse, pointing-device, problems
UPC - 000435958211
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USB keyboard, mouse, or pointing-device problems v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See Chapter 3, "Parts listing, Type 8864," on page 23 to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU). v If an action step is preceded by "(Trained service technician only)", that step must be performed only by a trained service technician. Symptom Action All or some keys on the keyboard do not work. 1. If you have installed a USB keyboard, run the Configuration/Setup Utility program and enable keyboardless operation to prevent the POST error message 301 from being displayed during startup. 2. Make sure that: v The keyboard cable is securely connected and the keyboard and mouse cables are not reversed. v The server and the monitor are turned on. 3. Reseat the following components: a. Keyboard b. I/O board 4. Replace the components listed in step 3 one at a time, in the order shown, restarting the server each time. The USB mouse or USB pointing device does not work. 1. Make sure that: v The mouse or pointing-device USB cable is securely connected to the server, the keyboard and mouse or pointing-device cables are not reversed, and the device drivers are installed correctly. v The server and the monitor are turned on. v Keyboardless operation has been enabled in the Configuration/Setup Utility program. 2. If a USB hub is in use, disconnect the USB device from the hub and connect it directly to the server. 3. Reseat the following components: a. Mouse or pointing device b. I/O board 4. Replace the components listed in step 3 one at a time, in the order shown, restarting the server each time. 92 IBM System x3850 Type 8864: Problem Determination and Service Guide