Some of the most prevalent causes :

This has been seen a few times due to antivirus issues. Disable
your antivirus as a test.

Simplify system. Remove ALL cards/devices not required.
Drivers, go to Device Maker's WebSite and get the latest driver.
Do not run UpDate Driver in Device Manager or even use the
scan for drivers at the maker's sites, these usually only check for
older ones. Video, Sound, Network Card/Wi-Fi and specialty
devices are most suspect.

If using latest video driver then revert back to an older one. Also
check site for Driver Removal to make sure no pieces of the
possibly bad one are left.

Corrupt Pagefile - If 2+ Gig RAM Make the Pagefile = 0
If less than 2 Gig RAM set it to small value like 100 meg. Reboot.....
set the pagefile back to Let windows handle it. (Tip = after reboot use
your clean up utilities and then defrag the drive and then reset pagefile
back. See JKDEFRAG

[url]http://www.kessels.com/Jkdefrag/[/url]

Could easily be a RAM or other hardware issue, reseat RAM, cards,
and Cables. Actually remove and reseat, do not just try to snug. Power
cord unplugged!

"iceman23" <iceman23.3uoifa@DoNotSpam.com> wrote in message
news:iceman23.3uoifa@DoNotSpam.com...[color=blue]
>
> I recently bought and built my first computer with Windows Vista
> Ultimate x64. My hardware is as follows:
>
> Biostar T45 HP motherboard
> Intel Quad Q8200 2.33Ghz processor
> Corsair TX750w power supply
> *XFX HD4870 1GB GDDR5 Graphics Card
> Corsair Dual Channel 8096MB (4x2) PC8500 DDR2
> Western Digital 1Tb hard drive
> *Comstar Wireless N USB Adapter
>
> After about a month or two of problem free use I started getting a
> BSOD that say "IRQL_not_less_or_equal" and occasionally one that says
> "SYSTEM SERVICE EXCEPTION". I have reinstalled Vista (and updated
> drivers) and formatted my HDD but it still continued. I have run memtest
> for 2 hrs and no errors were found. Also my processor temp. is usally no
> higher than 35 degrees celcius.
> * These are the two devices I have in questions because I have read
> both cause BSOD but especially the HD4870 since I have taken off the
> drivers for the adapter and taken it out of my computer and I still am
> getting BSOD.
>
> ANY HELP WOULD BE GREATLY, GREATLY APPRECIATED!!
>
>
> --
> iceman23
> ------------------------------------------------------------------------
> iceman23's Profile: [url]http://forums.techarena.in/members/110625.htm[/url]
> View this thread: [url]http://forums.techarena.in/vista-help/1206680.htm[/url]
>
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