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What is the standard IRQ setting for the system time?
IRQ 1
What is the standard IRQ setting for primary IDE controller?
14
What is the common IRQ setting for COM3?
4
What is the IRQ for a keyboard?
IRQ 1 is used exclusively for the keyboard controller.
What is IRQ 5?
This interrupt is the first choice that most sound cards make when looking for an IRQ setting.
Which setting must a device have in order to interrupt the CPU?
IRQ
List interrupts used with the IBM PC type sytems?
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
What IRQ does LPT1 usually use?
LTP1 should use IRQ7.
What is the IRQ for the floppy disk drive controller?
By default, the IRQ for the floppy disk controller is IRQ 6.
What is the Interrupt Request IRQ assigned to LPT1?
By default IRQ 7 is assigned to LPT1.
What is the address of COM1?
From: http://www.techadvice.com/tech/C/ComPort_TS.htmCom1, IRQ 4, address: 3F8Com2, IRQ 3, address: 2F8Com3, IRQ 4, address: 3E8Com4, IRQ 3, address: 2E8
If PCI attempts to use an IRQ that is used by a legacy ISA devicehow can you force PCI to IRQ?
In the context of computer systems, IRQ (Interrupt Request) lines are used by hardware devices to communicate with the CPU. However, there might be instances where you'd prefer certain devices not to use IRQs. If you wish to prevent a PCI (Peripheral Component Interconnect) device from using an IRQ, you generally have to go through the system's BIOS (Basic Input Output System) settings. The BIOS interface varies among manufacturers, but usually, you can access it by pressing a specific key (like F2, F10, or Del) during the system startup. Once in the BIOS settings, look for options related to IRQ assignments for PCI devices. This setting might be under different menus based on the specific BIOS version. Once located, you can change the IRQ settings to manual and then disable the IRQ for the specific PCI slot. Remember that changing BIOS settings should be performed with caution, as incorrect configurations can lead to system instability. Always ensure you understand what each setting does before making adjustments. Also, refer to your motherboard's manual for specific instructions.
