The floppy disk drive (FDD) commonly uses IRQ 6. This interrupt request line is designated for the floppy controller, allowing the CPU to manage data transfer between the floppy disk and the system. It's important to ensure that no other devices are using IRQ 6 to avoid conflicts.
LTP1 should use IRQ7.
IRQ 1 is used exclusively for the keyboard controller.
6
None. Its the graphics card that uses an IRQ. The monitor is just a peripheral.
0
5
FDD cable is for floppy disk drive (FDD).
it's assigned to control keyboard
IRQ 5 is normally a free interrupt unless you have a second parallel port installed. If the interrupt is currently in use by another resource, you could reassign the IRQ that one of the conflicting resources is using to a less commonly used interrupt such as 10, 11, or 12.
IRQ 3
Depends if it's sharable or not. You could try moving the card to another slot.
IRQ 0 - System timer. IRQ 1 - Keyboard. IRQ 2 - Cascaded signals from IRQs 8-15. IRQ 3 - COM2 (Default) and COM4 (User) serial ports IRQ 4 - COM1 (Default) and COM3 (User) serial ports IRQ 5 - LPT2 Parallel Port 2 or sound card IRQ 6 - Floppy disk controller IRQ 7 - LPT1 Parallel Port 1 or sound card (8-bit Sound Blaster and compatibles) IRQ 8 - Real time clock IRQ 9 - Free / Open interrupt / Available / SCSI. Any devices configured to use IRQ 2 will actually be using IRQ 9. IRQ 10 - Free IRQ 11 - Free IRQ 12 - PS/2 connector Mouse. IRQ 13 - ISA / Math Co-Processor IRQ 14 - Primary IDE. If no Primary IDE this can be changed IRQ 15 - Secondary IDE These are just a set of standard IRQs. For much more detail check our Ralf Brown's list located at http://www.cs.cmu.edu/~ralf/files.html