eMachines etower Series User Manual page 78

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6. If there is an EMI shield that covers the 5.25-inch drive bay you want to use, remove it from the
chassis using a tool such as a screwdriver.
EMI shield
7. Make sure jumpers of optional drive you want to install are set correctly.
NOTES
Like a hard disk drive, most optional devices have jumpers that must be set for the drive to work
properly with your computer. If you connect two drives to one E-IDE interface cable, you must
change the jumper settings on each drive to indicate which drive is the master drive and which is
the slave drive.
If you are to install an optional drive to this 5.25-inch bay, you can use the secondary E-IDE
drive connector. As your system's CD/DVD-ROM has been set to master, so you have to set the
optional drive's jumper to slave.
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Installing and Removing Board Options and Drives
6-11