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3. Select CD-ROM/DVD Test.
4. Follow the instructions in the message window.
If an error occurs, reseat the connector on the system
board.
If the error still remains:
1. Reseat the Combobay ASM.
2. Reseat the CD-ROM ASM.
3. Replace the CD-ROM ASM.
4. Replace the Combobay Interposer card ASM.
5. Replace the system board.
Fan ASM Checkout
To check the Fan ASM, do the following:
1. Boot from and start PC Doctor. (See “PC Doctor
System Diagnostics” on page 51 for details.)
2. Select Diagnostics.
3. Select Other Devices.
4. Select Fan.
5. Follow the instructions in the message window.
ThinkPad 390E
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