PC testing software

[Jeff Crosby <jlcrosby@xxxxxxxxxxxxxxxx>]

All,

Over the past month or so, my PC has BSOD'ed 4 times (they are listed
below).  I suspect hardware/driver of some kind but don't really know.
 I've been running "Probe II" software that came with the motherboard
to see if it was maybe a temperature or fan issue.  Nothing unusual
shows up.  I ran the MS memory tester - no errors found.

The first 2 times happened after hours and I was greeted with the BSOD
in the morning.  The last 2 times it happened while I was looking at
the screen and BOOM! there it is, all blue with those nifty white
letters.

Anyone familiar with some kind of testing software where I can boot
from CD and have a go?


Thanks.




The errors:

2010-??-?? (1st occurrence - I didn't record the date)
========
DRIVER_IRQL_NOT_LESS_OR_EQUAL
Stop:  0x000000D1 (0x00000000, 0x00000002, 0x00000000, 0xB5DC4DA1)
WSHELPER.SYS address B5DC4DA1 base at B5DC1000, datestamp 4b18b212

2010-04-08
========
DRIVER_IRQL_NOT_LESS_OR_EQUAL
Stop:  0x000000D1 (0x00000028, 0x00000002, 0x00000000, 0xB6A5E306)
SYMTI.SYS address B6A5E306 base at B6A58000, datestamp 48ab2a6c

2010-04-20
========
BAD_POOL_CALLER
STOP:  0x000000C2 (0x00000007, 0x00000CD4, 0x00000000, 0x8AC9FFFC)

2010-04-26
========
BAD_POOL_CALLER
STOP:  0x000000C2 (0x00000007, 0x00000CD4, 0x00000000, 0x8A22FFFC)