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IRQ Allocation Error

by JodyWood / December 10, 2003 3:39 PM PST

Basic PC Specs:
1. Win 98SE
2. 486DX
3. 48 MB RAM
4. CD-ROM
5. Floppy Drives - 3.5 and 5.25
6. Hard Drive - Not sure of size at this time, somewhere around 1-2 GB I believe.


Symptoms:
1. On startup, the BIOS is reporting the following error...
IRQ Allocation Error - Motherboard Function #: 01
(though I can never quite catch what the very last part of the error is, as the screen moves beyond that point quickly. anyway, I believe it to be what I indicate here.)

2. System boots fine and everything appears to work with the exception of the CD-ROM drive.

3. The CD-ROM drive is not recognized by the BIOS and I believe the issue has to do with the IRQ issue.


Wrap Up:
Any thoughts and/or insights on this issue are greatly appreciated. What would cause the allocation error and how does one correct it? Thanks.

Jody Wood

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Collapse -
Re:IRQ Allocation Error
by R. Proffitt Forum moderator / December 10, 2003 8:25 PM PST
In reply to: IRQ Allocation Error

You would update the BIOS, clear the BIOS settings and that usually clears up IRQ allocation issues.

CDROM drives have a high failure rate. I've never seen that error affect a CDROM drive in the fashion you write, but often find people that don't know that motherboard drivers are required to be installed (Microsoft doesn't do this for you.)

You would test the CDROM drive on another machine to be sure about it...

Bob

Collapse -
IRO Error
by cm3foi / December 18, 2004 11:18 AM PST
In reply to: IRQ Allocation Error

Basic PC Specs:
1. Win 98SE
2. 486DX
3. 48 MB RAM
4. CD-ROM
5. Floppy Drives - 3.5 and 5.25
6. Hard Drive - Not sure of size at this time, somewhere around 1-2 GB I believe.


Symptoms:
1. On startup, the BIOS is reporting the following error...
IRQ Allocation Error - Motherboard Function #: 01
(though I can never quite catch what the very last part of the error is, as the screen moves beyond that point quickly. anyway, I believe it to be what I indicate here.)

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