Hello,
This looks and sounds like a hardware problem; RAM is a likely culprit. Try running Memtest86, as well as the Blend and Large FFTs Prime95 tests.
RAM - Test with Memtest86+ Hardware - Stress Test With Prime95 ...Summary of the dumps: Code:
Built by: 7600.16988.x86fre.win7_gdr.120401-1505
Debug session time: Fri Jul 20 19:14:08.917 2012 (UTC - 4:00)
System Uptime: 0 days 0:02:36.008
Probably caused by : CLASSPNP.SYS ( CLASSPNP!ClasspSendMediaStateIrp+2f8 )
DEFAULT_BUCKET_ID: WIN7_DRIVER_FAULT
BUGCHECK_STR: 0xA
PROCESS_NAME: System
FAILURE_BUCKET_ID: 0xA_CLASSPNP!ClasspSendMediaStateIrp+2f8
BiosReleaseDate = 09/10/2009
SystemProductName = KJ385AA-ABA a6433w
จจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจ``
Built by: 7600.16988.x86fre.win7_gdr.120401-1505
Debug session time: Tue Jul 17 09:47:40.614 2012 (UTC - 4:00)
System Uptime: 1 days 1:54:59.705
Probably caused by : ntkrpamp.exe ( nt!ObReferenceObjectSafe+3 )
DEFAULT_BUCKET_ID: WIN7_DRIVER_FAULT
BUGCHECK_STR: 0x50
PROCESS_NAME: dw20.exe
FAILURE_BUCKET_ID: 0x50_nt!ObReferenceObjectSafe+3
BiosReleaseDate = 09/10/2009
SystemProductName = KJ385AA-ABA a6433w
จจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจจ``