I reformat and have same problem

i bought a comp little less than 2 years ago

480w power
Asus A8N-E mobo
saphire 1900xt
2g recently put in additional 2g (problems happen b/f and after i installed em)
2 western dig 10,000 rpm hard drives
4200x2 amd dual core

i have bee having multiple problems including:
Blue screen of Death messages like "bad pool caller" and "Machine check exception" and "irq_not_less_or_equal"
this topped off with a random "System boot failure" every now and than on restart. BSoD are random most of the time.

What i tried is reformatting multiple times re-installing the drivers and still same thing. The Ati 1900 has displayed a black screen saying "x1900xt BIOS" once, i reinstalled drivers havnt seen it since. I swapped out x1900xt for another video card and still same error messages same with ram.

These are the mini dump files dont know if they can help i have been loggin them. Any ideas or help would be great.

[url=http://www.4shared.com/dir/10298585/...6/sharing.html][/url]

i am happy to supply any further information...