Lenovo ThinkPad 600 TP 600E User's Reference - Page 134
Using a Second CardBus Card, Using a Microphone, System, Start, Programs, Accessories, Entertainment - thinkpad 600e user manual
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Hints and Limitations 4. Click on the Stop button. If you remove a communication PC Card from the PC Card slot and then reinsert it later, it might not work correctly. You need to restart your computer. If you install a PC Card after replacing a CD-ROM drive with a diskette drive, and then later reinsert the CD-ROM drive, the card might lose its resource name for working. A CD-ROM drive (secondary IDE) always uses IRQ 15, but after it is replaced with a diskette drive, IRQ 15 will be free, and Windows 95 or Windows 98 will assign it to a new PC Card. But IRQ 15 must be taken over with IDE2 when a CD-ROM drive is reinserted. Using a Second CardBus Card If a CardBus Card is already configured in your computer, you must configure a second CardBus manually by using the Device Manager. To get to the Device Manager, click on the System icon in the Control Panel. Using a Microphone If you are using a microphone with your computer, use the ThinkPad-option headset. Some microphones, such as condenser microphones, might need a battery. See the instructions that come with the microphone. The microphone/line-in jack of your computer supports either microphone input or line-in input but not both. You need to mute the function you don't use, as follows: 1 Click on Start. 2 Move the cursor to Programs, Accessories, Entertainment, and then Volume Control. The "Master Out" window appears. 3 Move the cursor to the Options menu; then click on Properties. 4 Put the check mark in the Line In or Mic check box under the Show the following volume controls; then click on OK. 120 IBM ThinkPad 600E User's Reference