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Driver_irql_not_less_or_equal Stop: 0x000000D1

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I have an XP Pro machine which gives me a: Driver_irql_not_less_or_equal Stop: 0x000000D1
On several occasions the driver PCIIDEX.SYS was referenced - but not any more.

I have run a memory diagnostics
I have removed and reseated the memory chips
I have run a HD diagnostics
I have run 3 spyware checks
I have run 3 full AV scans
I have run all windows and hardware updates I thought relevant
I have nothing noted as problematic under device manager
No significant new installations.

What is bizarre, and for which I have no explanation, is that although the system restore feature was on, there are no restore points available - I disabled, re-enabled, and now it seems to be working.

The exact error code is:
Driver_irql_not_less_or_equal Stop: 0x000000D1 (0x0000SA44, 0x00000005, 0x0000SA44)
But the part in parentheses seems to change.

Can anyone help?

Many thanks,
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Nick Burns

Nick Burns

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This error is almost always given when it is a hardware issue. Since you are intermittently getting the error, I would assume that something is going bad in the box. This could also mean that something is not seated firmly in the motherboard and will give this error when something isn't connecting correctly to the motherboard.

PCIIDEX is related to the PCI bus and PCI bus components including hard drives, cd & dvd drives, etc. Reseat the cables to these components and make sure they are firmly seated. If this doesn't fix the problem, I would replace the IDE cables before replacing expensive components like the hard drive and cd rom.

Certified IT Solutions

Edited by Nick Burns, 04 September 2007 - 01:21 PM.

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