Irq line assignments – Dell Inspiron 3700 User Manual
Page 79
column and move across the row to the right under the corresponding second resolution.
Table 2. Display Resolution and Color Depth Without DVD and 3D Software Running (in Bits)
IRQ Line Assignments
Problems can arise if two devices attempt to use the same interrupt request (IRQ) line. To avoid this type of conflict, check the documentation for
the default IRQ line setting for each installed device. Then consult
to configure the device for one of the available IRQ lines.
Table 3. IRQ Line Assignments
Secondary
640 x 480
800 x 600
1024 x 768
1280 x 1024
P
r
i
m
a
r
y
640 x 480 (8 bit)
32
32
32
32
800 x 600 (8 bit)
32
32
32
32
1024 x 768 (8 bit)
32
32
32
32
1280 x 1024 (8 bit)
32
32
32
32
1600 x 1200 (8 bit)
32
32
32
32
640 x 480 (16 bit)
32
32
32
32
800 x 600 (16 bit)
32
32
32
32
1024 x 768 (16 bit)
32
32
32
32
1280 x 1024 (16 bit)
32
32
32
32
1600 x 1200 (16 bit)
32
32
24
24
640 x 480 (24 bit)
32
32
32
32
800 x 600 (24 bit)
32
32
32
32
1024 x 768 (24 bit)
32
32
32
32
1280 x 1024 (24 bit)
32
32
32
24
1600 x 1200 (24 bit)
24
24
16
8
640 x 480 (32 bit)
32
32
32
32
800 x 600 (32 bit)
32
32
32
32
1024 x 768 (32 bit)
32
32
32
24
1280 x 1024 (32 bit)
32
32
24
16
1600 x 1200 (32 bit)
8
8
--
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NOTES: Installed devices cannot share the same COM port address. The default address of your computer's serial port
is COM1.
To view IRQ line assignments in the Microsoft Windows 98 operating system, click the Start button, point to Settings, and
click Control Panel. Double-click the System icon. Select the Device Manager tab, and then double-click Computer.
IRQ
Line
Reserved/Available
IRQ0
Reserved; generated by the system timer
IRQ1
Reserved; generated by the keyboard controller to signal that the keyboard output buffer is full
IRQ2
Reserved; generated internally by the interrupt controller to enable IRQ8 through IRQ15
IRQ3
Available for use by a PC Card unless the integrated serial port or infrared port is configured for COM2 or COM4
IRQ4
Available for use by a PC Card unless the integrated serial port or infrared port is configured for COM1 (the default) or COM3
IRQ5
Available for use by the audio controller
IRQ6
Generated by the diskette drive controller to indicate that the diskette drive requires the attention of the microprocessor
IRQ7
Available for use by a PC Card or audio controller if the parallel port is disabled
IRQ8
Reserved; generated by the system input/output (I/O) controller's real-time clock (RTC)
IRQ9
Reserved; generated by the video controller