ntoskrnl.exe+71f00 BSOD occuring often

I'm running in to an issue lately, a BSOD occurs ever so often. This has been going from a few months due to which I reinstalled my windows, it still did not go away. I'm attaching all the crash reports I have.


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Dump File : 042614-57938-01.dmp
Crash Time : 4/26/2014 3:35:48 AM
Bug Check String : PFN_LIST_CORRUPT
Bug Check Code : 0x0000004e
Parameter 1 : 00000000`0000009a
Parameter 2 : 00000000`00116aec
Parameter 3 : 00000000`00000006
Parameter 4 : 00000000`00000002
Caused By Driver : ntoskrnl.exe
Caused By Address : ntoskrnl.exe+71f00
File Description : NT Kernel & System
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 6.1.7600.16385 (win7_rtm.090713-1255)
Processor : x64
Crash Address : ntoskrnl.exe+71f00
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\042614-57938-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7600
Dump File Size : 291,600
Dump File Time : 4/26/2014 3:37:18 AM
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Dump File : 042314-55333-01.dmp
Crash Time : 4/23/2014 10:27:41 PM
Bug Check String : PFN_LIST_CORRUPT
Bug Check Code : 0x0000004e
Parameter 1 : 00000000`0000009a
Parameter 2 : 00000000`00116ba2
Parameter 3 : 00000000`00000006
Parameter 4 : 00000000`00000002
Caused By Driver : ntoskrnl.exe
Caused By Address : ntoskrnl.exe+71f00
File Description : NT Kernel & System
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 6.1.7600.16385 (win7_rtm.090713-1255)
Processor : x64
Crash Address : ntoskrnl.exe+71f00
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\042314-55333-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7600
Dump File Size : 291,600
Dump File Time : 4/23/2014 10:29:02 PM
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Dump File : 041614-45801-01.dmp
Crash Time : 4/16/2014 12:17:34 AM
Bug Check String : PFN_LIST_CORRUPT
Bug Check Code : 0x0000004e
Parameter 1 : 00000000`0000009a
Parameter 2 : 00000000`00116a13
Parameter 3 : 00000000`00000006
Parameter 4 : 00000000`00000002
Caused By Driver : ntoskrnl.exe
Caused By Address : ntoskrnl.exe+71f00
File Description : NT Kernel & System
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 6.1.7600.16385 (win7_rtm.090713-1255)
Processor : x64
Crash Address : ntoskrnl.exe+71f00
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\041614-45801-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7600
Dump File Size : 291,640
Dump File Time : 4/16/2014 12:18:47 AM
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Dump File : 040314-60528-01.dmp
Crash Time : 4/3/2014 1:15:00 AM
Bug Check String : PFN_LIST_CORRUPT
Bug Check Code : 0x0000004e
Parameter 1 : 00000000`0000009a
Parameter 2 : 00000000`00116a89
Parameter 3 : 00000000`00000006
Parameter 4 : 00000000`00000002
Caused By Driver : ntoskrnl.exe
Caused By Address : ntoskrnl.exe+71f00
File Description : NT Kernel & System
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 6.1.7600.16385 (win7_rtm.090713-1255)
Processor : x64
Crash Address : ntoskrnl.exe+71f00
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\040314-60528-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7600
Dump File Size : 291,624
Dump File Time : 4/3/2014 1:16:42 AM
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Dump File : 033114-51417-01.dmp
Crash Time : 3/31/2014 10:10:05 PM
Bug Check String : PFN_LIST_CORRUPT
Bug Check Code : 0x0000004e
Parameter 1 : 00000000`0000009a
Parameter 2 : 00000000`001169d0
Parameter 3 : 00000000`00000006
Parameter 4 : 00000000`00000002
Caused By Driver : ntoskrnl.exe
Caused By Address : ntoskrnl.exe+71f00
File Description : NT Kernel & System
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 6.1.7600.16385 (win7_rtm.090713-1255)
Processor : x64
Crash Address : ntoskrnl.exe+71f00
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\033114-51417-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7600
Dump File Size : 291,664
Dump File Time : 3/31/2014 10:11:30 PM
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Dump File : 032514-64990-01.dmp
Crash Time : 3/25/2014 4:19:37 PM
Bug Check String : PFN_LIST_CORRUPT
Bug Check Code : 0x0000004e
Parameter 1 : 00000000`0000009a
Parameter 2 : 00000000`001168ed
Parameter 3 : 00000000`00000006
Parameter 4 : 00000000`00000002
Caused By Driver : ntoskrnl.exe
Caused By Address : ntoskrnl.exe+71f00
File Description : NT Kernel & System
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 6.1.7600.16385 (win7_rtm.090713-1255)
Processor : x64
Crash Address : ntoskrnl.exe+71f00
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\032514-64990-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7600
Dump File Size : 291,656
Dump File Time : 3/25/2014 4:21:11 PM
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Dump File : 032114-59810-01.dmp
Crash Time : 3/21/2014 8:17:04 AM
Bug Check String : PAGE_FAULT_IN_NONPAGED_AREA
Bug Check Code : 0x00000050
Parameter 1 : fffff900`c57e3a20
Parameter 2 : 00000000`00000000
Parameter 3 : fffff960`0035c69d
Parameter 4 : 00000000`00000000
Caused By Driver : win32k.sys
Caused By Address : win32k.sys+c40d1
File Description :
Product Name :
Company :
File Version :
Processor : x64
Crash Address : ntoskrnl.exe+71f00
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\032114-59810-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7600
Dump File Size : 291,600
Dump File Time : 3/21/2014 8:18:41 AM
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Dump File : 031014-33306-01.dmp
Crash Time : 3/10/2014 8:51:25 PM
Bug Check String : SYSTEM_SERVICE_EXCEPTION
Bug Check Code : 0x0000003b
Parameter 1 : 00000000`c0000005
Parameter 2 : fffff960`00114283
Parameter 3 : fffff880`08b10060
Parameter 4 : 00000000`00000000
Caused By Driver : win32k.sys
Caused By Address : win32k.sys+c4283
File Description :
Product Name :
Company :
File Version :
Processor : x64
Crash Address : ntoskrnl.exe+71f00
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\031014-33306-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7600
Dump File Size : 291,624
Dump File Time : 3/10/2014 8:52:34 PM
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Dump File : 030414-41153-01.dmp
Crash Time : 3/4/2014 6:49:14 AM
Bug Check String : PFN_LIST_CORRUPT
Bug Check Code : 0x0000004e
Parameter 1 : 00000000`0000009a
Parameter 2 : 00000000`0011697a
Parameter 3 : 00000000`00000006
Parameter 4 : 00000000`00000002
Caused By Driver : ntoskrnl.exe
Caused By Address : ntoskrnl.exe+71f00
File Description : NT Kernel & System
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 6.1.7600.16385 (win7_rtm.090713-1255)
Processor : x64
Crash Address : ntoskrnl.exe+71f00
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\030414-41153-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7600
Dump File Size : 291,624
Dump File Time : 3/4/2014 6:51:10 AM
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In addition here are my system specs:
Operating System: Windows 7 Ultimate 64-bit (6.1, Build 7600)
BIOS Date: 10/29/10 15:51:18 Ver: 08.00.15
Processor: Intel(R) Core(TM) i3 CPU 530 @ 2.93GHz (4 CPUs), ~2.9GHz
Memory: Corsair XMS3 4096MB RAM
Card name: NVIDIA GeForce GTX 550 Ti
PSU: Coolermaster GX750