It looks to me that the audio drivers could be causing your problems. Many applications (browsers, games, Windows Media Player, ect.) use the audio resources which may explain the different STOP errors.
Since you have an older socket A system it has probably run for a long time and it's only within the last few months that you have had problems. So it would seem that something that was updated or added to your system within the last few months is likely causing the problem. Another problem with older hardware is contact surfaces that have become corroded or dirty or the device may be starting to fail.
-Two of the crash dumps involved opera.exe. Try using Firefox or I.E. or try a different version of Opera.
-See link below for audio driver fix from Microsoft.
-I think that your motherboard has a VIA chipset. The VIA 4 in1 driver installer (which includes the audio drivers) has been known to cause problems. Uninstall and try using the native Windows audio drivers.
-Check with manufacture of your motherboard or PC for BIOS update.
-Remove RAM and clean the contact surfaces. Also do this for PCI devices.
-Overheating problems.
other:
Run SFC
Look in event manager.
Look in Device Manager for problem devices.
It would help troubleshooting this problem if you could provide more info about your system.
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Selected info from Windows Debugger and your .dmp files
STOP: 0x0000008E (0xC000001D
BugCheck 1000008E, {c000001d, f706d908, f7c4aecc, 0}
Probably caused by : hardware ( portcls!CPortPinWavePci::GetMapping+3f )
DEFAULT_BUCKET_ID: DRIVER_FAULT
BUGCHECK_STR: 0x8E
PROCESS_NAME:
opera.exe
MISALIGNED_IP:
portcls!CPortPinWavePci::GetMapping+3f
f706d908 c7 ???
LAST_CONTROL_TRANSFER: from f709eb79 to f706d908
FAILED_INSTRUCTION_ADDRESS:
portcls!CPortPinWavePci::GetMapping+3f
f706d908 c7 ???
STACK_TEXT:
f7c4af44 f709eb79 85be7ae4 00000248 f7c4af70 portcls!CPortPinWavePci::GetMapping+0x3f
WARNING: Stack unwind information not available. Following frames may be wrong.
f7c4af90 f709dc4b 84c9e564 85be7aec 84c9e560 ALCXWDM+0xeb79
f7c4afa8 f706d855 00c5cbf0 85c787a0 f7c4afd0 ALCXWDM+0xdc4b
f7c4afb8 f706d7bf 85be7aec 866bec78 ffdff000 portcls!CPortPinWavePci::RequestService+0x25
f7c4afd0 804dbbd4 84c9e540 84c9e530 00000000 portcls!CServiceGroup::ServiceDpc+0x2a
f7c4aff4 804db89e aa442d44 00000000 00000000 nt!KiRetireDpcList+0x46
f7c4aff8 aa442d44 00000000 00000000 00000000 nt!KiDispatchInterrupt+0x2a
This error is cause by a conflict involving portcls.sys and alcxwdm.sys and opera.exe. . ALCXWDM.sys is the Avance/Realtek AC'97 audio driver and portcls.sys is the XP miniport sound driver.
Try this fix first:
http://www.microsoft.com/downloads/...a5-6a28-4888-93a7-6a6c6a87be7f&DisplayLang=en
If you have VIA chipset and you used the VIA 4 in 1 driver installer, uninstall it and use Windows XP native default audio drivers.
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STOP: 0x00000024 (0x001902FE ntfs file
BugCheck 24, {1902fe, f7c62a10, f7c6270c, 8054b5b2}
Probably caused by : Ntfs.sys ( Ntfs!NtfsDeleteScb+165
ERROR_CODE: (NTSTATUS) 0xc0000005 - The instruction at "0x%08lx" referenced memory at "0x%08lx". The memory could not be "%s".
This issue can occur if a problem occurred within the Ntfs.sys file. The Ntfs.sys file is the driver file that enables your computer to read and write to NTFS partitions. Damage in the NTFS file system, damaged portions of your hard disk, or damaged SCSI or IDE drivers can also cause this issue. Basically, this function tried to access (one assumes tried to delete) a resource it expected to be able to but it could not not. Try running chkdsk 2 or 3 times. It may be that your hard drive is starting to fail.
This is from:
http://msdn.microsoft.com/en-gb/library/ms793935.aspx
One possible cause of this bug check is disk corruption. Corruption in the NTFS file system or bad blocks (sectors) on the hard disk can induce this error. Corrupted SCSI and IDE drivers can also adversely affect the system's ability to read and write to disk, thus causing the error.
Another possible cause is depletion of nonpaged pool memory. If the nonpaged pool memory is completely depleted, this error can stop the system. However, during the indexing process, if the amount of available nonpaged pool memory is very low, another kernel-mode driver requiring nonpaged pool memory can also trigger this error.
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STOP: 0x0000008E (0xC0000005,0xBF801A9F,0xA952FC48 win32k.sys
BugCheck 1000008E, {c0000005, bf801a9f, a952fc48, 0}
Probably caused by : win32k.sys ( win32k!xxxRealInternalGetMessage+40d )
EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - The instruction at "0x%08lx" referenced memory at "0x%08lx". The memory could not be "%s".
FAULTING_IP:
win32k!xxxRealInternalGetMessage+40d
bf801a9f 6a01 push 1
TRAP_FRAME: a952fc48 -- (.trap 0xffffffffa952fc48)
ErrCode = 00000002
eax=00000000 ebx=00000000 ecx=00000000 edx=00000000 esi=e212beb0 edi=00000200
eip=bf801a9f esp=a952fcbc ebp=a952fcec iopl=0 nv up ei pl nz na pe nc
cs=0008 ss=0010 ds=0023 es=0023 fs=0030 gs=0000 efl=00010206
win32k!xxxRealInternalGetMessage+0x40d:
bf801a9f 6a01 push 1
Resetting default scope
CUSTOMER_CRASH_COUNT: 1
DEFAULT_BUCKET_ID: DRIVER_FAULT
BUGCHECK_STR: 0x8E
PROCESS_NAME:
opera.exe