Lenovo ThinkPad 380ED ThinkPad 380, 385, 560, 560E, all 760, 765 and SelectADo - Page 665

Undetermined Problems Use the following procedure when the diagnostic tests do not identify the failing adapter or device. Check that all cables, wires, and connectors are connected so that they do not cause a short circuit. If any problems are found, reconnect or replace them. Check the power supply for correct operation (see "Power Supply" on page 626). If the power supply is operating correctly, return here and continue with the following procedure: 1. Turn off the computer. 2. Remove or disconnect the following adapters or devices one at a time from the SelectaDock Docking System. (Do not isolate adapters or devices that are known to be good.) a. Non-IBM devices. b. A modem, printer, mouse, external keyboard, external monitor, external diskette drive, numeric keypad, USB device, or other external devices. c. Any adapter. d. SCSI device. e. Hard disk drive. 3. Turn on the system and check if the problem has changed. 4. If the symptom remains, repeat steps 1 through 3 until you find the failing adapter card or device, or until all adapter cards or devices have been removed. 5. If all adapters or devices have been removed and the problem remains, replace the following the SelectaDock III FRUs one at a time. Note: If a replaced part did not resolve the problem, put the original part back in the SelectaDock III. Do not replace nondefective parts. a. Riser card. b. Main card. c. Audio card. d. USB card. If the problem goes away when you remove an adapter card, but replacing the adapter card does not correct the problem, replace the main card. SelectaDock III (3547-003) 653