Computer Hardware
You should never put floppy drives, hard drives, or even VCR tapes or cassette tapes on top of speakers (or near any other source of magnetism) because of:

EXE
EMI
IOU
FYI
RFI

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Computer Hardware
To install a second IDE drive into a computer, you must

Set the master-slave jumper to slave on the second drive
Verify that you define the new drive as D: in the CMOS setup
Verify that you attach the drive to the connector at the end of the ribbon cable
Use the IDE configuration software to set the new drive as slave

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