I only see this report once:
On Sat 27/12/2014 4:44:39 AM GMT your computer crashed
crash dump file: C:\Windows\memory.dmp
This was probably caused by the following module: dxgmms1.sys (dxgmms1+0xF46C)
Bugcheck code: 0x3B (0xC0000005, 0xFFFFF800030F5622, 0xFFFFF8800D1C8660, 0x0)
Error: SYSTEM_SERVICE_EXCEPTION
file path: C:\Windows\system32\drivers\dxgmms1.sys
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: DirectX Graphics MMS
Bug check description: This indicates that an exception happened while executing a routine that transitions from non-privileged code to privileged code.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
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 that cannot be identified at this time.
And all the rest are these:
On Sat 27/12/2014 4:44:39 AM GMT your computer crashed
crash dump file: C:\Windows\Minidump\122614-62384-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x75BC0)
Bugcheck code: 0x3B (0xC0000005, 0xFFFFF800030F5622, 0xFFFFF8800D1C8660, 0x0)
Error: SYSTEM_SERVICE_EXCEPTION
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that an exception happened while executing a routine that transitions from non-privileged code to privileged code.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.