The memory dumps are all over the place, with no sure indication of a specific issue. This could be due to the memory issues (?have you run the memory test again?) or it may be due to malware (see below).
I noticed 2 older drivers - one for Avira antivirus, and another for a driver named a6qspml5.SYS
There's no search results for this second driver - which is suspicious. Could you search your system for it and see what it's properties are? In particular, check the Details tab for information on the manufacturer.
It may be that this is an infection - so I'd suggest downloading a fresh copy of Avira, uninstalling the old one, and then install the freshly downloaded one. Update it immediately and perform a complete system scan.
Here's a summary of the BSOD's:
Code:
*** WARNING: Unable to verify timestamp for ntkrnlpa.exe
*** ERROR: Module load completed but symbols could not be loaded for ntkrnlpa.exe
Built by: 7229.0.x86fre.winmain.090604-1901
Debug session time: Fri Jun 19 05:05:38.458 2009 (GMT-4)
System Uptime: 0 days 0:06:51.925
*** WARNING: Unable to verify timestamp for ntkrnlpa.exe
*** ERROR: Module load completed but symbols could not be loaded for ntkrnlpa.exe
BugCheck 1000008E, {c0000005, 0, a44aba74, 0}
*** WARNING: Unable to verify timestamp for afd.sys
*** ERROR: Module load completed but symbols could not be loaded for afd.sys
Probably caused by : afd.sys ( afd+3637 )
DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
*** WARNING: Unable to verify timestamp for ntkrnlpa.exe
*** ERROR: Module load completed but symbols could not be loaded for ntkrnlpa.exe
Built by: 7229.0.x86fre.winmain.090604-1901
Debug session time: Fri Jun 19 10:24:07.081 2009 (GMT-4)
System Uptime: 0 days 1:33:04.595
*** WARNING: Unable to verify timestamp for ntkrnlpa.exe
*** ERROR: Module load completed but symbols could not be loaded for ntkrnlpa.exe
DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
*** WARNING: Unable to verify timestamp for ntkrnlpa.exe
*** ERROR: Module load completed but symbols could not be loaded for ntkrnlpa.exe
Built by: 7229.0.x86fre.winmain.090604-1901
Debug session time: Fri Jun 19 10:29:31.957 2009 (GMT-4)
System Uptime: 0 days 0:00:47.596
*** WARNING: Unable to verify timestamp for ntkrnlpa.exe
*** ERROR: Module load completed but symbols could not be loaded for ntkrnlpa.exe
DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT