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Diskette Interface controls the operation of the system’s built-in diskette drive controller.

With Auto (the default) selected, the system turns off the built-in diskette drive con- troller when necessary to accommodate a controller card installed in an expansion slot.

With Write Protect selected, nothing can be written to diskette drives and tape drives using the system’s built-in diskette drive controller. (The system can still read from the drives.) The Auto option (whereby the system turns off the built-in diskette drive con- troller as necessary) is also in effect.

Selecting Off turns off the built-in diskette/tape drive controller; this option is used pri- 3&marily6SHDNHUfor troubleshooting purposes.

PC Speaker determines whether system sounds (other than beep codes) are emitted by the on-board speaker. A change takes effect immediately (rebooting the system is not required).

However, even with PC Speaker set to Off, sounds from the integrated audio control- ler will be emitted by the on-board speaker. To disable the on-board speaker

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Video DAC Snoop lets you correct video problems that may occur when certain video expansion cards are used. The default is Off. If you are using a video card and prob- 3ULPDU\lems such6&6,as incorrectDQG6HFRQGDU\6&6,colors or blank windows occur, set Video DAC Snoop to On.

SCSI controls the system’s on-board primary and secondary small computer system interface (SCSI) controllers. The settings for Primary SCSI and Secondary SCSI are:

‡

‡

Off (the default)

On

Refer to Chapter 7, “Using the Integrated SCSI Controllers,” and Chapter 10, “Install- ing Drives,” for information about configuring and installing SCSI devices.

Using the System Setup Program 3-11