BSOD Overnight when not using computer- 4x in approx 1 month

Running perfectly since new, approx 4 years old. Windows 7 Home Premium x64 system has crashed 4x with a BSOD in the last couple weeks. I leave my computer on, and when I return in the morning, the computer was shut down. I had a case fan go bad so figured I would try replacing that, and also replaced the power supply while I was at it, to see if that would remedy the issue. Ran fine for a few days, and woke up again this morning to a shut down computer.
I will also note that the case fan connector on the mother board seems to be going bad, as the new case fan did just sputtered and would try, but not get turning. I ended up plugging it in to another fan terminal on the motherboard and it runs fine now.
The computer never crashes or shuts down while I am using it. It always happens overnight, and find it shut down when I come down to work in the morning. Actually, I have had no problems at all since I bought the computer about 4 years ago.

Can anyone help me identify/fix the problem? I am hoping not to have to do a clean install if avoidable. I would be more than happy provide any other information I can that may help?

My system is a Asus Essentio Series with an Intel Core i7-2600CPU @ 3.40GHz., 8 GB RAM, C: drive is a 1TB SATA. I have 3 other external portable hard drives connected via USB that I use 1 for work, 1 for back up, and the other as a second back up and has some older files on it.

I am attaching the DM Collector zip file.
I appreciate any help anyone may offer?

Thank you, Rob

Edit: I apologize, the subject line is incorrect, it has not been a month, but more like 2 weeks started on 3/30/15, again on 4/3, 4/9 and again this morning.

Welcome to 7F. I'll take a look at your logs and see if I can help you resolve your issues.

All of your four dumps are pointing to a driver that belongs to NetGear Genie. It's very old and the resolution probably lies in a firmware update. Details on how can be found here.

Code:

BugCheck A, {fffffa803b2aa178, 2, 1, fffff800030e5035}

*** WARNING: Unable to verify timestamp for npf.sys
*** ERROR: Module load completed but symbols could not be loaded for npf.sys
Probably caused by : npf.sys ( npf+2bb2 )

Followup: MachineOwner
---------

0: kd> lmvm npf
start             end                 module name
fffff880`03c29000 fffff880`03c35000   npf      T (no symbols)           
    Loaded symbol image file: npf.sys
    Image path: \??\C:\Windows\system32\drivers\npf.sys
    Image name: npf.sys
    Timestamp:        Fri Jun 25 17:50:58 2010 (4C24DE72)
    CheckSum:         00011844
    ImageSize:        0000C000
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4

Code:

  NETGEARGenie                   "C:\Program Files (x86)\NETGEAR Genie\bin\NETGEARGenie.exe" -mini -redirect           Hogwildz-PC\Hogwildz          

Gav is correct - its Netgear genie causing the issue.

This thread is similar and was resolved by installing updated firmware:
Computer Crashed when I wasn't around it.

Its not easy to tell why, but essentially the outdated firmware and the Windows system drivers clash to a point where the system becomes unstable and Windows crashes.

You're welcome, glad to hear your issue is sorted. :)

It's NetGear Genie again. The driver is still old, look for an updated version to go with the firmware update.

Code:

BugCheck A, {fffffa801b363178, 2, 1, fffff800030cac05}

*** WARNING: Unable to verify timestamp for npf.sys
*** ERROR: Module load completed but symbols could not be loaded for npf.sys
Probably caused by : npf.sys ( npf+2b81 )

6: kd> lmvm npf
start             end                 module name
fffff880`041c5000 fffff880`041d1000   npf      T (no symbols)           
    Loaded symbol image file: npf.sys
    Image path: \??\C:\Windows\system32\drivers\npf.sys
    Image name: npf.sys
    Timestamp:        Fri Jun 25 17:50:58 2010 (4C24DE72)
    CheckSum:         00011844
    ImageSize:        0000C000
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4