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September 12th, 2006 16:00
I/O APIC
Okay, so I have:
Dimension 4600 (Bios A12)
Pentium 4 3.0Ghz
1gb Ram
Windows XP SP2
NVidia FX 5200
Great- only it won't boot... anything... except the Dell Resource CD.
Booting from hdd gives me an error message that the system32/drivers/ntfs.sys file is missing or corrupt... Its not.
Various other hdd's, that I know are working, which I tested with also failed to boot (error messages too numerous to list).
XP cd freezes when loading windows setup.
Linux live cds also freeze, crash or refuse to boot. (Have tried different dvd drives as well)
Booting from floppy also fails.
Running Dell 32 bit diagonistic, everything passes except the I/O APIC, which gives the error message:
Error Code: 2600:011A
Unexpected Interrupt found....
I'm guessing the ResourceCD works cos its based on Windows 98, which isnt reliant on Apic.. This true?
Anyway my qustion is, can I disable Apic in the bios or does its failure mean the end of my Dimension 4600(sa the dell technical told me)?
Dimension 4600 (Bios A12)
Pentium 4 3.0Ghz
1gb Ram
Windows XP SP2
NVidia FX 5200
Great- only it won't boot... anything... except the Dell Resource CD.
Booting from hdd gives me an error message that the system32/drivers/ntfs.sys file is missing or corrupt... Its not.
Various other hdd's, that I know are working, which I tested with also failed to boot (error messages too numerous to list).
XP cd freezes when loading windows setup.
Linux live cds also freeze, crash or refuse to boot. (Have tried different dvd drives as well)
Booting from floppy also fails.
Running Dell 32 bit diagonistic, everything passes except the I/O APIC, which gives the error message:
Error Code: 2600:011A
Unexpected Interrupt found....
I'm guessing the ResourceCD works cos its based on Windows 98, which isnt reliant on Apic.. This true?
Anyway my qustion is, can I disable Apic in the bios or does its failure mean the end of my Dimension 4600(sa the dell technical told me)?
Message Edited by sean_oconnell on 09-12-200603:00 PM
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mombodog
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September 15th, 2006 03:00
"However, if you are running Windows 95/98 or a DOS-based operating system on a single-processor motherboard, you must disable this feature. This is because MS-DOS drivers assume they can write directly to the 8259 PIC (APIC did not exist yet in those days!) and its associated IDT entries. Disabling this feature forces the APIC to revert to the legacy 8259 PIC mode."
http://www.adriansrojakpot.com/Speed_Demonz/New_BIOS_Guide/APIC_Function.htm
Remember when 98 had all those IRQ problems when you had too much hardware? well this is how they solved it in 2K and XP, by using APIC.
Message Edited by mombodog on 09-14-2006 11:17 PM