Ok when it freezes and I need to reboot I press the reboot button on the tower. The tower lights indicate hdd activity, the keyboard and mouse lights come on. The monitor doesn't appear to get any signal at all - with either hdmi or vga cables. (For a long time suspected monitor problems but testing with other monitors and cables all have this result.) I cant say whether there are any beeps as I don't have speakers and have not yet worn headphones while rebooting - will do so next time it happens. The technician asked if I heard the fans starting up during reboot and I rarely do - I would say only twice in last 100 reboot attempts. Despite the peripherals lighting up I don't think it gets very far in the booting up process. When I realise it's not progressing (after giving it plenty of time) and I hold the power switch to force it off, it switches off very quickly. Usually when you power down by holding the power button in, it takes the 4 seconds count to power down. Hope this helps.
BSOD Report:
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Dump File : 121414-22183-01.dmp
Crash Time : 14/12/2014 3:58:03 PM
Bug Check String :
Bug Check Code : 0x00000117
Parameter 1 : fffffa80`0ef1f130
Parameter 2 : fffff880`0f1f04ac
Parameter 3 : 00000000`00000000
Parameter 4 : 00000000`00000000
Caused By Driver : dxgkrnl.sys
Caused By Address : dxgkrnl.sys+1f8e0
File Description : DirectX Graphics Kernel
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 6.1.7601.18510 (win7sp1_gdr.140615-1511)
Processor : x64
Crash Address : mrxsmb10.sys+416577
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\121414-22183-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7601
Dump File Size : 754,950
Dump File Time : 14/12/2014 3:58:03 PM
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Dump File : 121314-22386-01.dmp
Crash Time : 13/12/2014 9:31:31 PM
Bug Check String : DRIVER_IRQL_NOT_LESS_OR_EQUAL
Bug Check Code : 0x000000d1
Parameter 1 : 00000000`00000010
Parameter 2 : 00000000`00000002
Parameter 3 : 00000000`00000000
Parameter 4 : fffff880`0f506d4d
Caused By Driver : nvlddmkm.sys
Caused By Address : nvlddmkm.sys+45dd4d
File Description : NVIDIA Windows Kernel Mode Driver, Version 347.09
Product Name : NVIDIA Windows Kernel Mode Driver, Version 347.09
Company : NVIDIA Corporation
File Version : 9.18.13.4709
Processor : x64
Crash Address : ntoskrnl.exe+75bc0
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\121314-22386-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7601
Dump File Size : 291,112
Dump File Time : 13/12/2014 9:34:57 PM
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