Identifying cause of bsod

Hi All, new member with a problem. Having experienced recent BSOD can anyone advise likely cause - have pasted below log file from Blue Screen View which shows fault with ntoskrnl.exe but no clue, to me, of probable culprit. SFC scan showed no problems.

BC Code 0x0000009f
Caused by address: ntoskrnl.exe+74ec0
Caused by driver: ntoskrnl.exe
==============================================
Dump File : 033015-34788-01.dmp
Crash Time : 29/03/2015 16:28:30
Bug Check String : DRIVER_POWER_STATE_FAILURE
Bug Check Code : 0x0000009f
Parameter 1 : 00000000`00000003
Parameter 2 : fffffa80`07b3a060
Parameter 3 : fffff800`00ba0748
Parameter 4 : fffffa80`0ca6ca20
Caused By Driver : ntoskrnl.exe
Caused By Address : ntoskrnl.exe+74ec0
File Description : NT Kernel & System
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 6.1.7601.18741 (win7sp1_gdr.150202-1526)
Processor : x64
Crash Address : ntoskrnl.exe+74ec0
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\033015-34788-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7601
Dump File Size : 1,273,200
Dump File Time : 30/03/2015 09:24:13
==================================================

TIA Johnjo

Zip up the following file and attach it to your next reply.

C:\Windows\Minidump\033015-34788-01.dmp

Looks like its a driver issue but the minidump should tell me which driver needs updating.

Hi johnb35, have tried to attach file requested but it apparently too big

Trying again to attach file

johnb35. Again file too big - any suggestions on how I can send/attach file

Are you using a zip program to make the file smaller?

m3incorp said:

Are you using a zip program to make the file smaller?

Click to expand...

Yup, built in to W7 Pro. Original file size:1244KB Zipped 145KB

Email me the dump file.

File sent

Unfortunately, its not telling which driver is the issue. What computer do you have? Is it a custom built or store bought? If custom built, need a list of your specs motherboard, cpu, video card. If store bought, need make and model of pc.

Have you installed a new program or piece of hardware recently? Try driver verifier. May have to do it in safe mode.

https://msdn.microsoft.com/en-us/library/windows/hardware/ff545448%28v=vs.85%29.aspx

http://www.reviversoft.com/blog/2013/09/using-driver-verifier-to-fix-a-blue-screen-of-death/

johnb35 said:

Unfortunately, its not telling which driver is the issue. What computer do you have? Is it a custom built or store bought? If custom built, need a list of your specs motherboard, cpu, video card. If store bought, need make and model of pc.

Click to expand...

As requested system specs. Custom built. As is possible driver issue have included everything I can think of:
MB: ASUS D7P55D; CPU: Intel i5 660; Ram: 8GB; HDDs: Hitachi SATA,Maxtor SATA; WD USB External; DVD/CD: HL-DT-ST SCSI, TSST SCSI; Graphic Card: NVIDIA GT 210; Hama USB 2.00 Card Reader; MS 4500 USB Mouse; MS PS2 KB; Monitor: Hanns-G HU196D; Network Adaptor: Realtek PCIe; PCI Serial Port card (2); PCI USB card (5 port); Printers (USB): Brother HL5040, Canon iP4700, HP 960c

If you need any thing else please let me know. Thank you for your assistance

Go here and select what OS you are running and update these drivers.

http://www.asus.com/Motherboards/P7P55D/HelpDesk_Download/

Chipset
Audio
Lan

What Operating system are you running?

johnb35 said:

Go here and select what OS you are running and update these drivers.

http://www.asus.com/Motherboards/P7P55D/HelpDesk_Download/

Chipset
Audio
Lan

What Operating system are you running?

Click to expand...

Running w7 Pro. Will go to Asus site shortly. Drivers have been updated

Download this driver for you video.

http://www.geforce.com/drivers/results/82467

Have you added any new hardware recently?

johnb35 said:

Download this driver for you video.

http://www.geforce.com/drivers/results/82467

Have you added any new hardware recently?

Click to expand...

Have downloaded and installed driver Geforce 341.44 WHQL

No hardware installed since Sep 14 - replacement 4 port usb pci card

If you replaced the 4 port usb pci card and then seen these BSODs that could be it. I would check its driver then as well.

BSODs are usually always driver or hardware related so keep that in mind.

Thanks to all for your suggestions, much appreciated. It's a shame the dmp file didn't identify the culprit. All the best