Port/Irq Configurations; Solo Notebook Interrupts (Irqs) - Gateway Solo 5100 Maintaining & Troubleshooting

56 Maintaining and Troubleshooting Your Solo Notebook

Port/IRQ Configurations

Your notebook supports the use of multiple peripheral devices. By default, your
system has two free IRQs (normally IRQ 10 and 11). 16-bit and 32-bit devices (PC
Cards) cannot share the same interrupt. The IRQs that may be used by normal 16-
bit PC Cards are 3, 4, 5, 7, 10 and 11. IRQ 9 is not available for 16-bit PC Cards
because they are reserved as PCI style interrupts for USB and 32-bit Cardbus PC
Cards.

Solo notebook interrupts (IRQs)

Use this information to help determine which IRQ(s) to disable if you need to free-
up resources for a new device.
5100 IRQs Device use
0 System timer
1 Keyboard
2 Programmable interrupt controller
3 IR port (COM2) - shipped disabled
4 Serial communications port (COM1)
5 Sound
6 Floppy disk controller
7 Parallel port (printer)
8 System CMOS/Real time clock
9 USB - IRQ holder (32-bit PCI style IRQ)
CardBus - (32-bit PCI style IRQ)
10 Free
11 Free
12 Touchpad (mouse)
13 Numeric data processor
14 Hard disk
15 CD-ROM drive