BSOD 2 times already.

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Dump File : 051715-9718-01.dmp
Crash Time : 5/17/2015 11:51:17 AM
Bug Check String : KERNEL_DATA_INPAGE_ERROR
Bug Check Code : 0x0000007a
Parameter 1 : 0xc0513d30
Parameter 2 : 0xc000000e
Parameter 3 : 0x61df5be0
Parameter 4 : 0xa27a6000
Caused By Driver : ntkrnlpa.exe
Caused By Address : ntkrnlpa.exe+def20
File Description : NT Kernel & System
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 6.1.7601.17514 (win7sp1_rtm.101119-1850)
Processor : 32-bit
Crash Address : ntkrnlpa.exe+def20
Stack Address 1 : ntkrnlpa.exe+a3e45
Stack Address 2 : ntkrnlpa.exe+a7726
Stack Address 3 : ntkrnlpa.exe+90977
Computer Name :
Full Path : C:\Windows\Minidump\051715-9718-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7601
Dump File Size : 167,528
Dump File Time : 5/17/2015 1:08:51 PM
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Dump File : 051615-19500-01.dmp
Crash Time : 5/16/2015 1:01:21 PM
Bug Check String : DRIVER_IRQL_NOT_LESS_OR_EQUAL
Bug Check Code : 0x000000d1
Parameter 1 : 0x00000008
Parameter 2 : 0x00000002
Parameter 3 : 0x00000000
Parameter 4 : 0x9310168d
Caused By Driver : nvvad32v.sys
Caused By Address : nvvad32v.sys+168d
File Description : NVIDIA Virtual Audio Driver
Product Name : NVIDIA Virtual Audio Driver
Company : NVIDIA Corporation
File Version : 1.2.9 built by: WinDDK
Processor : 32-bit
Crash Address : ntkrnlpa.exe+415cb
Stack Address 1 : nvvad32v.sys+168d
Stack Address 2 : nvvad32v.sys+1d1c
Stack Address 3 : portcls.sys+c1d8
Computer Name :
Full Path : C:\Windows\Minidump\051615-19500-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7601
Dump File Size : 155,328
Dump File Time : 5/16/2015 1:02:02 PM
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Blue Screen of Death (BSOD) Posting Instructions

Here is the BSOD zip file.