Too many crash dumps. Don't know what to do!

[Xonipher]

I need help. I've gotten 7 crash dumps. I generally can't play for more 5 minutes without getting a bluescreen crash dump. I just finished my computer a couple of days ago. And I've only played crysis 2 multiplayer. I've been getting crashdumps since I started playing on my new computer. Thanks in advance.

On Fri 3/4/2011 9:52:54 PM GMT your computer crashed
crash dump file: C:\Windows\Minidump\030411-25802-01.dmp
This was probably caused by the following module: hal.dll (hal+0x12903)
Bugcheck code: 0x124 (0x0, 0xFFFFFA8004AF1028, 0xB6004000, 0xE5000135)
Error: WHEA_UNCORRECTABLE_ERROR
file path: C:\Windows\system32\hal.dll
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: Hardware Abstraction Layer DLL
Bug check description: This bug check indicates that a fatal hardware error has occurred. This bug check uses the error data that is provided by the Windows Hardware Error Architecture (WHEA).
This is likely to be caused by a hardware problem problem. This problem might be caused by a thermal issue.
The crash took place in a standard Microsoft module. Your system configuration may be incorrect. Possibly this problem is caused by another driver on your system which cannot be identified at this time.

My computer-
-Windows 7 64bit
-AMD Phenom x4 B35 2.9ghz (unlocked 4th core from a 435) with rosewill 92mm Zaio cooler and Arctic Silver Ceramique thermal compound
-Sapphire ATI Radeon HD 5750 w/ Driver 11.2
-G.Skill Ripjaws 2x 2gb (4gb total) 1333mhz DDR3 Ram
-Biostar A780L3G
-250gn Western Caviar Blue 7.2k 3gb/s rpm HDD
-575 watt Logysis PSU
-3-4 80mm 3000rpm Case Fans
-Samsung DVD/CD, burner/reader

 

[Xonipher]

The guys at overclock.net helped me right away. It was the unlocked 4th core that was unstable. I locked it back down to make it a tri core.