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p4 l1/l2 cache

I am experiencing stop errors IRQL-NOT-LESS-OR-EQUAL during startup on WINDOWS 2000 PRO. I have googled to death this stop message.

After having narrowed the problem down to either the CPU or motherboard I have a question.

If I disable the L1 cache on my ASUS P4B533 motherboard latest BIOS (1015), it will proceed with the bootup and startup of WINDOWS 2000. I am presuming that since this resolves the issue it might be the CPU. Has anyone had or experienced a failure of L1 cache before? This is a P4 2.2Ghz 533 socket 478 processor.

Any other thoughts? The system was operating correctly but doing intermittant reboots. I chased the problem finally resorting to a reinstall of W2k at which time the halt started ocurring. I have eliminated all hardware possibilities except mobo and CPU.

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2 areas where I saw this.

In reply to: p4 l1/l2 cache

1. The power supply was puny. Below 400 Watts.

2. The motherboard capacitors were domed and leaking.

Hope niether is true on your machine.


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Hope niether is true on your machine.

In reply to: 2 areas where I saw this.

Thanks for the suggestions Bob.

I had swapped out the power supply as a possibility. Was running a 450W and for this work station only have 1Gb stick of PC2700DDR a quadro 4 video card, NIC, CDRW, floppy and single IDE disk. All of those were either swapped or disabled to isolate it to the mobo or cpu.

I'll peruse the mobo for issues. It is about a year old, but always on.

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That Quadro...

In reply to: Hope niether is true on your machine.

That was an interesting card. Anything plain to try out?

I suspect it or the combo of motehrboard and it.


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Anything plain to try out?

In reply to: That Quadro...

I swapped it out with an older Matrox G450, same issue. I'm pretty sure I have eliminated all the external stuff. I even isolated IDE channels to see if one or the other might be generating interrupts.

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What's left?

In reply to: Anything plain to try out?

What hasn't been changed is suspect now.

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