crashing and random restarts

hi iv recently just built a new pc, the motherboard is a asus m4a785td-v evo the cpu is amd athlon 2 quad core 2.90 ghz gpu is a geforce 9400 gt power supply atx-500 2gb ddr3 ram... i have had windows 7 uiltimate installed with clean copy's severale times an still get this problem of either a total freeze or a random restart when the pc comes bak on i get the following error message....
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.256.48
Locale ID: 2057
Additional information about the problem:
BCCode: 124
BCP1: 0000000000000000
BCP2: FFFFFA8002DAA628
BCP3: 0000000000000000
BCP4: 0000000000000000
OS Version: 6_1_7600
Service Pack: 0_0
Product: 256_1
Files that help describe the problem:
C:\Windows\Minidump\111710-29796-01.dmp
C:\Users\test\AppData\Local\Temp\WER-51324-0.sysdata.xml
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C:\Windows\system32\en-US\erofflps.txt
i have nothing over heating running at 28 degrees c any help muchly appreciated

More than likely a hardware issue due to the 0x124 code. Does your Mobo have a onboard VGA port as individual hardware needs to be ruled out.

Thanks for the reply's yes it does have vga port

Have you tried to take the card out and use the onboard VGA to see if you get this issue? Worth a shot!:)

no mate i havent ill give that a whirl an see what happens ill re post in an hour or so cheers for the help :)

thinkj i attached the bsod file correctly