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PASSWD	Installed (default) to enable the password feature. Remove
	the jumper and boot the computer to remove an existing
	password.
CARDBIOS	Reserved (do not install).
ISA_CLR	Not installed (default) to retain the ISA configuration set-
	tings at system boot. Install the jumper and boot the
	computer to clear the ISA configuration settings. Remove
	the jumper before restoring ISA configuration information.
RSVD1	Do not install. Reserved for future microprocessor speed.
RSVD2	Do not install. Reserved for future microprocessor speed.
350MHZ	Do not install.
400MHZ	Installed only if the microprocessor’s internal speed is
	400 MHz.

450MHZ Installed only if the microprocessor’s internal speed is 450 MHz (when available).

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500MHZ Installed$VVLJQPHQWVonly if the microprocessor’s internal speed is 7DEOH,54/LQH￿￿￿￿8VHG,QWHUUXSW￿500$YDLODEOHMHz (when available).

Table 1-8 lists the default IRQ line assignments.

IRQ0	Used by the system timer
IRQ1	Used by the keyboard to signal that the output buffer is full
IRQ2	Used by interrupt controller 1 to enable IRQ8 through IRQ15
IRQ3	Used by serial port 2 (COM2 and COM4)
IRQ4	Used by serial port 1 (COM1 and COM3)
IRQ5	Available unless used by a secondary parallel port
IRQ6	Used by the diskette drive controller
IRQ7	Used by the primary parallel port
IRQ8	Used by the RTC
IRQ9	Used for power management functions
IRQ10	Available
IRQ11	Available

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