drtweak :
Are you doing a Hybrid Crossfire with your HD6670 with your A85600? Maybe try disabling that.
i downloaded the program whocrashed and this are the results
System Information (local)
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computer name: JOJI-PC
windows version: Windows 7 Service Pack 1, 6.1, build: 7601
windows dir: C:\Windows
CPU: AuthenticAMD AMD A8-5600K APU with Radeon(tm) HD Graphics AMD586, level: 21
4 logical processors, active mask: 15
RAM: 8269524992 total
VM: 2147352576, free: 1934680064
On Sun 10/6/2013 3:06:24 AM GMT your computer crashed
crash dump file: C:\Windows\memory.dmp
This was probably caused by the following module: Unknown (0x00460044)
Bugcheck code: 0xA (0xFFFFFA8C0466DE90, 0x2, 0x1, 0xFFFFF800034AA150)
Error: IRQL_NOT_LESS_OR_EQUAL
Bug check description: This indicates that Microsoft Windows or a kernel-mode driver accessed paged memory at DISPATCH_LEVEL or above.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
A third party driver was identified as the probable root cause of this system error.
Google query: IRQL_NOT_LESS_OR_EQUAL