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IRQ 1

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Q: What is the standard IRQ setting for the system time?
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Related questions

What is the standard IRQ setting for a math coprocessor?

What is the standard IRQ setting for a math coprocessor?


What is the standard IRQ setting for primary IDE controller?

14


What is the common IRQ setting for COM3?

4


What is IRQ 5?

This interrupt is the first choice that most sound cards make when looking for an IRQ setting.


What is the IRQ for a keyboard?

IRQ 1 is used exclusively for the keyboard controller.


Which setting must a device have in order to interrupt the CPU?

IRQ


What does an IRQ allow interface cards to do?

IRQ or interupt request : An IRQ allows a device to request certain system resources on priority. Normally, the system allowcates the different non-competing IRQ numbers to different devices. The system allocated IRQs may some times be manually changed. However, it may lead to serious IRQ conflicts resulting in a hung operating system.


What is the IRQ of the system timer?

IRQ1


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 the system timer use?

0


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.


What system resources does COM2 use?

IRQ 3