It's usually a RAM issue, and can often be fixed by increasing the voltage to the DIMMs.
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IRQL_NOT_LESS_OR_EQUAL ??? Yep, I got the same thing as soon as I powered up my new 802.11N router! I shut the N router down, disabled my wireless-G card and used a wireless-N WAP dongle instead. I fired up the new Linksys N Router again and the BSOD was gone. I repeated this a few times and my bottom line was that my intel/PRO wireless-G card crashed every time it was in range of the N router signal. Hope this helps.
Just wondering if anyone else has experienced this BSOD with an IS-7 mobo. In all honesty, from what I've read it's more likely a driver, IRQ or ram issue, but I'm just trying to isolate the problem.]
Always ask yourself, "What did I change right before this happened?" As I stated, for me it was definitely the overpowering signal of a new 802.11N linksys router whose signal was flooding my wireless-G notebook card and in effect making it crash. Either temporarily disable your wireless G card or get out of range of a wireless N router.