"IRQ NOT LESS OR EQUAL..." - Please Help!

[Hooobi]

I keep getting this blue screen where my computer locks up and it says:

(blah blah)
IRQ NOT LESS OR EQUAL...
(blah blah)
Beginning Physical Memory Dump
Physical Memory Dump Complete
Please contact system administrator.

Anyone know what's causing this?
I've been having problems recently both with sporadic, spontaneous rebooting & then, after disabling the "auto reboot" feature in Win2k, this is what seems to be happening now...

My System:
Windows 2000
Athlon 1G
384 Ram (256 + 128)
45gig IBM
80gig Maxtor

The only changes I have made recently (other than some minor software installs) is plugging in a laserjet.

Any thoughts appreciated.

 

[Shack70]

Does this happen if you take out one of those ram chips? Memory might be having probs working together....

 

[Hooobi]

Well... I've had both these chips in there since I built this system in early December and only recently (within the last week or so) have I started having these problems.

I downloaded some memory diagnostic program that ran off a floppy for 8 hrs but then failed to generate any kind of useful report so I don't know if it's memory related or not.

Would a memory problem just pop up like this out of the blue?

 

[loosbrew]

go here . this is a good guide to win2k stop errors.

loosbrew

 

[PowerJoe]

A driver running loose, most likely. Update your drivers.

-PJ