Hi,

As you reformatted/reinstalled and the problem still occurs, you likely have
a hardware issue. Disable non-essential peripherals (either through the BIOS
or by disconnecting them), then run the system for a while to see if it
still happens. If not, then the problem is one the ones you removed. If so,
then you're going to need to dig deeper. As you've checked the ram, you need
to suspect system timing, power supply, hard drive, processor, and possibly
the motherboard itself.

--
Best of Luck,

Rick Rogers, aka "Nutcase" - Microsoft MVP
[url]http://mvp.support.microsoft.com/[/url]
Windows help - [url]www.rickrogers.org[/url]
Vote for my shoe: [url]http://rick-mvp.blogspot.com[/url]

"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
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