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ensures that the pin-1 wire in the cable (indicated by the colored strip along one edge of the cable) goes to the pin-1 end of the connector.

The pin-1 end of a card-edge connector is usually identified by a notch cut about a quarter of an inch from the end of the connector, as shown in Figure 7-5. A header connector is usually keyed by the omission of one of its pins (see Figure 7-5), with the corresponding hole filled in on the connector cable.

The pin-1 end of a connector on a board or a card is usually indicated by a silk- screened “1” printed directly on the board or card.

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The 5.25-inch drive bays can accommodate any of the following types of half-height drives:

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A diskette drive or tape drive that uses the diskette/tape drive interface on the system board

A CD-ROM or tape drive that uses the secondary EIDE interface on the system board

A CD-ROM drive or tape drive that uses its own controller card

To install a drive in a 5.25-inch bay, follow these steps:

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Check the documentation that accompanied the drive to verify that the drive is configured for your computer system. Change any settings necessary for your configuration.

NOTE: If you are installing a non-EIDE tape drive, check the documentation for the drive to determine the jumper or switch settings used to designate the drive as drive address DS4 (not DS2 or DS3 as may be indicated in the drive documen- tation). Unless the drive is already set to drive 4, reconfigure its jumper or switch setting (see “Jumpers” and “Switches” in Chapter 5).

If you are installing an EIDE CD-ROM or EIDE tape drive, configure the drive for the Cable Select setting.

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Installing Drives 7-5