BSOD while gaming. ntoskrnl.exe+4b094c

ok so heres the whole story. a few months back i upgraded my GPU from the OEM card that came with my HPE-410y PC to a EVGA Nvidia GTX 560.

because the OEM PSU couldnt handle the GPU i upgraded to a 550w PSU which blew out after a few months. well my PC sat for a couple months until i could get around to fixing it then i finally went and bought a rosewill 1000w PSU. this upgrade got my PC up and running but shortly afterwards my pc started the BSOD issue i am still dealing with.

originally my pc said it was a plug and play driver issue so i fixed that but that didnt stop the issue. so i updated all my drivers but still no change. i scanned the HDD and found bad sectors so i ordered a new 256gb OCZ agility4 SSD and reinstalled a brand new OS to the SSD. still i have the same problem.

this only happens when gaming so my next thought was the video card maybe got fried when the 550w PSU blew out. so i sent the GTX 560 back to EVGA and got a new one. still crashing during games.

i have been doing alot of research into this problem and all the dumps i have looked at says ntoskrnl.exe+4b094c caused the BSOD. some forums say that the Nvidia HD audio driver is the cause so i uninstalled it. other forums point to bad RAM so i ran Memtest86 for hours with no errors. i then reseated my 4 2gb sticks. still no change.

from there i cleaned out the dust from all the pc components and ran thermal tests on the PC even opening the case and pointing a fan at the CPU but still crashed and the CPU logs show the temp never rose into dangerous levels.

i have spent the last month troubleshooting this problem and i feel like my motherboard my be the problem but i can in no way verify that. please help. i have uploaded the dump file for the crash as well as the seven forums log that is a requirement for BSOD posts.

here is the BSOD notification:

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7601.2.1.0.768.3
Locale ID: 1033

Additional information about the problem:
BCCode: 124
BCP1: 0000000000000000
BCP2: FFFFFA80071918F8
BCP3: 0000000000000000
BCP4: 0000000000000000
OS Version: 6_1_7601
Service Pack: 1_0
Product: 768_1


here is the blue screen view results:
==================================================
Dump File : 101912-36317-01.dmp
Crash Time : 10/19/2012 11:58:02 PM
Bug Check String :
Bug Check Code : 0x00000124
Parameter 1 : 00000000`00000000
Parameter 2 : fffffa80`071918f8
Parameter 3 : 00000000`00000000
Parameter 4 : 00000000`00000000
Caused By Driver : ntoskrnl.exe
Caused By Address : ntoskrnl.exe+4b094c
File Description : NT Kernel & System
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 6.1.7601.17944 (win7sp1_gdr.120830-0333)
Processor : x64
Crash Address : ntoskrnl.exe+4b094c
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\101912-36317-01.dmp
Processors Count : 6
Major Version : 15
Minor Version : 7601
Dump File Size : 262,144
==================================================

Lets eliminate some possibilities

Remove Problem Software:
1. Uninstall Advance System Care

Code:

AVG network filter service    ROOT\LEGACY_AVGFWFD\0000    This device is not present, is not working properly, or does not have all its drivers installed.

2. Uninstall, completely remove AVG and Install Microsoft Security Essentials - Free Antivirus for Windows Once installed update and scan your system.
3. Download and install Free Malwarebytes
Once installed, update and scan your system.

Update Drivers:
1. 802.11n Wireless LAN Card Driver c:\windows\system32\drivers\netr28x.sys (3.0.0.41, 606.00 KB (620,544 bytes), 6/10/2009 4:35 PM)

Keep us posted, thanks