Solved BSOD at idle

From the last dump...
This was probably caused by the following module: [FONT=Segoe UI, Arial]lsnfd.sys[/FONT] (lsnfd+0x2C35)
Bugcheck code: 0x3B (0xC0000005, 0xFFFFF80003A6E49A, 0xFFFFF8800E6FF0A0, 0x0)
Error: [FONT=Segoe UI, Arial]SYSTEM_SERVICE_EXCEPTION[/FONT]

I found some search references to malware. It's worth a try.
Malwarebytes
 

My Computer My Computer

At a glance

Microsoft Windows 7 Ultimate 64-bit 7601 Mult...Intel(R) Core(TM) i7 CPU 950 @ 3.07GHz16.0GB Dual-Channel DDR3 @ 534MHz (8-8-8-20)1023MB NVIDIA GeForce GTX 650 (EVGA)
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Custome Built
OS
Microsoft Windows 7 Ultimate 64-bit 7601 Multiprocessor Free Service Pack 1
CPU
Intel(R) Core(TM) i7 CPU 950 @ 3.07GHz
Motherboard
ASUSTeK Computer INC. SABERTOOTH X58 (LGA1366)
Memory
16.0GB Dual-Channel DDR3 @ 534MHz (8-8-8-20)
Graphics Card(s)
1023MB NVIDIA GeForce GTX 650 (EVGA)
Sound Card
(1) NVIDIA High Definition Audio (2) High Definition Audio
Monitor(s) Displays
HP W2072a LED Backlit
Screen Resolution
1920x1080@60Hz
Hard Drives
(1) SAMSUNG MMCRE28G5MXP-0VB SCSI Disk Device
(2) ST1000DM 003-1CH162 SCSI Disk Device
(3) WDC WD10EURX-73FH1Y0 SCSI Disk Device
PSU
XION XON-1000P14F
Cooling
Fans
Antivirus
Windows Security Essentials
Browser
Mozilla Firefox
Other Info
BIOS Version/Date
American Megatrends Inc. 1402, 8/9/2012
SMBIOS Version 2.5
As a blind suggestion, you said it was OC'ed? Turn off the OC. You can always turn it back on ofter the issue is solved.
Of course if you then don't get any more dumps, you'll know where the problem is at.

I agree!
 

My Computer My Computer

At a glance

Windows 7 x64Intel i7 920Corsair XMS 16GBnVidia GTX 570
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Custom
OS
Windows 7 x64
CPU
Intel i7 920
Motherboard
Asus
Memory
Corsair XMS 16GB
Graphics Card(s)
nVidia GTX 570
As a blind suggestion, you said it was OC'ed? Turn off the OC. You can always turn it back on ofter the issue is solved.
Of course if you then don't get any more dumps, you'll know where the problem is at.
Yeah, I know and will give that a try. :D
From the last dump...
This was probably caused by the following module: [FONT=Segoe UI, Arial]lsnfd.sys[/FONT] (lsnfd+0x2C35)
Bugcheck code: 0x3B (0xC0000005, 0xFFFFF80003A6E49A, 0xFFFFF8800E6FF0A0, 0x0)
Error: [FONT=Segoe UI, Arial]SYSTEM_SERVICE_EXCEPTION[/FONT]

I found some search references to malware. It's worth a try.
Malwarebytes
I was able to delete that file OK. It's kaput! My wife like to d/l stuff without asking what it is. :sarc:
 

My Computer My Computer

At a glance

Windows 7 Ultimate X64 SP1Intel i5-2550K, Differing ~4.4-4.8GHz No buil...16GB G.Skill Sniper 1866MHz @ 2133MHz 2x8GBASUS GTX650TIB-DC2OC-2GD5, (650TI Boost)
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Home Built Desktop By DataTech
OS
Windows 7 Ultimate X64 SP1
CPU
Intel i5-2550K, Differing ~4.4-4.8GHz No built in GPU
Motherboard
ASUS P8Z68-V PRO/GEN3
Memory
16GB G.Skill Sniper 1866MHz @ 2133MHz 2x8GB
Graphics Card(s)
ASUS GTX650TIB-DC2OC-2GD5, (650TI Boost)
Sound Card
Onboard Realtek 5-1
Monitor(s) Displays
Samsung P2570HD
Screen Resolution
1920x1080
Hard Drives
Samsung 840 Pro 256GB SSD for OS, 500GB Seagate Constellation (Enterprise drive) for Data
PSU
Corsair HX650W
Case
Inwin Dragon Rider
Cooling
Hyper 212 EVO w/two Noctua fans, push-pull, @1300 RPM
Keyboard
E-Z Eyes, bright yellow keys with large characters
Mouse
steelseries SENSEI Laser Pro Gaming
Internet Speed
48-51Mbs Mbs down, 11 Mbs up Xfinity Cable
Antivirus
Norton Internet Security 2013
Browser
IE 10, Opera, Pale Moon if needed
Other Info
4 case fans, LG BluRay-RE, ASUS DVD-RW, Mr. Fusion power supply, 1.21 gigawatts.
I was able to delete that file OK. It's kaput! My wife like to d/l stuff without asking what it is. :sarc:
Britton - Suggest you either train her or replace her. What does she look like? ;)
 

My Computer My Computer

At a glance

Microsoft Windows 7 Ultimate 64-bit 7601 Mult...Intel(R) Core(TM) i7 CPU 950 @ 3.07GHz16.0GB Dual-Channel DDR3 @ 534MHz (8-8-8-20)1023MB NVIDIA GeForce GTX 650 (EVGA)
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Custome Built
OS
Microsoft Windows 7 Ultimate 64-bit 7601 Multiprocessor Free Service Pack 1
CPU
Intel(R) Core(TM) i7 CPU 950 @ 3.07GHz
Motherboard
ASUSTeK Computer INC. SABERTOOTH X58 (LGA1366)
Memory
16.0GB Dual-Channel DDR3 @ 534MHz (8-8-8-20)
Graphics Card(s)
1023MB NVIDIA GeForce GTX 650 (EVGA)
Sound Card
(1) NVIDIA High Definition Audio (2) High Definition Audio
Monitor(s) Displays
HP W2072a LED Backlit
Screen Resolution
1920x1080@60Hz
Hard Drives
(1) SAMSUNG MMCRE28G5MXP-0VB SCSI Disk Device
(2) ST1000DM 003-1CH162 SCSI Disk Device
(3) WDC WD10EURX-73FH1Y0 SCSI Disk Device
PSU
XION XON-1000P14F
Cooling
Fans
Antivirus
Windows Security Essentials
Browser
Mozilla Firefox
Other Info
BIOS Version/Date
American Megatrends Inc. 1402, 8/9/2012
SMBIOS Version 2.5
Britton - Suggest you either train her or replace her. What does she look like? ;)
Not bad, but she has adult kids who can't function on their own. They don't like to work.

Anyhoo, the BSODs have not returned since setting the CPU back to stock in a few hours now.
 

My Computer My Computer

At a glance

Windows 7 Ultimate X64 SP1Intel i5-2550K, Differing ~4.4-4.8GHz No buil...16GB G.Skill Sniper 1866MHz @ 2133MHz 2x8GBASUS GTX650TIB-DC2OC-2GD5, (650TI Boost)
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Home Built Desktop By DataTech
OS
Windows 7 Ultimate X64 SP1
CPU
Intel i5-2550K, Differing ~4.4-4.8GHz No built in GPU
Motherboard
ASUS P8Z68-V PRO/GEN3
Memory
16GB G.Skill Sniper 1866MHz @ 2133MHz 2x8GB
Graphics Card(s)
ASUS GTX650TIB-DC2OC-2GD5, (650TI Boost)
Sound Card
Onboard Realtek 5-1
Monitor(s) Displays
Samsung P2570HD
Screen Resolution
1920x1080
Hard Drives
Samsung 840 Pro 256GB SSD for OS, 500GB Seagate Constellation (Enterprise drive) for Data
PSU
Corsair HX650W
Case
Inwin Dragon Rider
Cooling
Hyper 212 EVO w/two Noctua fans, push-pull, @1300 RPM
Keyboard
E-Z Eyes, bright yellow keys with large characters
Mouse
steelseries SENSEI Laser Pro Gaming
Internet Speed
48-51Mbs Mbs down, 11 Mbs up Xfinity Cable
Antivirus
Norton Internet Security 2013
Browser
IE 10, Opera, Pale Moon if needed
Other Info
4 case fans, LG BluRay-RE, ASUS DVD-RW, Mr. Fusion power supply, 1.21 gigawatts.
Leave the CPU clocking that way for a day or two. If you are still dump free, then she will never know how you fixed the problem. ;)
 

My Computer My Computer

At a glance

Microsoft Windows 7 Ultimate 64-bit 7601 Mult...Intel(R) Core(TM) i7 CPU 950 @ 3.07GHz16.0GB Dual-Channel DDR3 @ 534MHz (8-8-8-20)1023MB NVIDIA GeForce GTX 650 (EVGA)
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Custome Built
OS
Microsoft Windows 7 Ultimate 64-bit 7601 Multiprocessor Free Service Pack 1
CPU
Intel(R) Core(TM) i7 CPU 950 @ 3.07GHz
Motherboard
ASUSTeK Computer INC. SABERTOOTH X58 (LGA1366)
Memory
16.0GB Dual-Channel DDR3 @ 534MHz (8-8-8-20)
Graphics Card(s)
1023MB NVIDIA GeForce GTX 650 (EVGA)
Sound Card
(1) NVIDIA High Definition Audio (2) High Definition Audio
Monitor(s) Displays
HP W2072a LED Backlit
Screen Resolution
1920x1080@60Hz
Hard Drives
(1) SAMSUNG MMCRE28G5MXP-0VB SCSI Disk Device
(2) ST1000DM 003-1CH162 SCSI Disk Device
(3) WDC WD10EURX-73FH1Y0 SCSI Disk Device
PSU
XION XON-1000P14F
Cooling
Fans
Antivirus
Windows Security Essentials
Browser
Mozilla Firefox
Other Info
BIOS Version/Date
American Megatrends Inc. 1402, 8/9/2012
SMBIOS Version 2.5
True, the bad thing is she won't ever notice that it works OK either. :(
 

My Computer My Computer

At a glance

Windows 7 Ultimate X64 SP1Intel i5-2550K, Differing ~4.4-4.8GHz No buil...16GB G.Skill Sniper 1866MHz @ 2133MHz 2x8GBASUS GTX650TIB-DC2OC-2GD5, (650TI Boost)
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Home Built Desktop By DataTech
OS
Windows 7 Ultimate X64 SP1
CPU
Intel i5-2550K, Differing ~4.4-4.8GHz No built in GPU
Motherboard
ASUS P8Z68-V PRO/GEN3
Memory
16GB G.Skill Sniper 1866MHz @ 2133MHz 2x8GB
Graphics Card(s)
ASUS GTX650TIB-DC2OC-2GD5, (650TI Boost)
Sound Card
Onboard Realtek 5-1
Monitor(s) Displays
Samsung P2570HD
Screen Resolution
1920x1080
Hard Drives
Samsung 840 Pro 256GB SSD for OS, 500GB Seagate Constellation (Enterprise drive) for Data
PSU
Corsair HX650W
Case
Inwin Dragon Rider
Cooling
Hyper 212 EVO w/two Noctua fans, push-pull, @1300 RPM
Keyboard
E-Z Eyes, bright yellow keys with large characters
Mouse
steelseries SENSEI Laser Pro Gaming
Internet Speed
48-51Mbs Mbs down, 11 Mbs up Xfinity Cable
Antivirus
Norton Internet Security 2013
Browser
IE 10, Opera, Pale Moon if needed
Other Info
4 case fans, LG BluRay-RE, ASUS DVD-RW, Mr. Fusion power supply, 1.21 gigawatts.
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