Video Hardware Error BSoD

Hello all

My old GFX card was acting weird.. It had alot of GFX errors on the screen sometimes, then if i turned off the computer for some time it would get normal again. But it just got worse and worse, i could see in reliability monitor it was a video hardware error ofcause. So i bought a new GFX card and it fixed it.

But now all of a sudden i start getting Video Hardware Errors again in reliability monitor. And BSoD whenever i use my computer for heavy games. And if i open some not so heavy programs, like youtube, vlc etc., whatever sound i play starts lagging a little, sounding robotic.

What ive done so far

* Tryed formatting my computer, and install everything again.
* Reset bios to default settings

but nothing have helped.

My PC specs:

MB: Asus P6X58D-E
CPU: Intel i7 950
GFX: MSI GTX 770 Twin Frozr OC edition
SSD: intel x25-m 80gb
HDD: WD VelocityRaptor
RAM: Kingston DDR3 - 1333 Mhz - 6 GB
SFX: ASUS Xonar Xense

Reliability monitor info:

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Windows
Problem: Shut down unexpectedly
Files that help describe the problem:
081314-23025-01.dmp
sysdata.xml
WERInternalMetadata.xml
View a temporary copy of these files
Warning: If a virus or other security threat caused the problem, opening a copy of the files could harm your computer.

Dump files:

==================================================
Dump File : 081314-21793-01.dmp
Crash Time : 13-08-2014 19:42:41
Bug Check String :
Bug Check Code : 0x00000116
Parameter 1 : fffffa80`09d5c1c0
Parameter 2 : fffff880`0fe587a0
Parameter 3 : ffffffff`c000009a
Parameter 4 : 00000000`00000004
Caused By Driver : rdpencdd.sys
Caused By Address : rdpencdd.sys+2ea1000
File Description : RDP Encoder Miniport
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+80640
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\081314-21793-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7601
Dump File Size : 337.664
Dump File Time : 13-08-2014 19:43:49
==================================================

==================================================
Dump File : 081314-23025-01.dmp
Crash Time : 13-08-2014 18:16:21
Bug Check String :
Bug Check Code : 0x00000116
Parameter 1 : fffffa80`07aee010
Parameter 2 : fffff880`0fa387a0
Parameter 3 : ffffffff`c000009a
Parameter 4 : 00000000`00000004
Caused By Driver : dxgkrnl.sys
Caused By Address : dxgkrnl.sys+5d000
File Description : DirectX Graphics Kernel
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 6.1.7601.17514 (win7sp1_rtm.101119-1850)
Processor : x64
Crash Address : ntoskrnl.exe+80640
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\081314-23025-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7601
Dump File Size : 337.664
Dump File Time : 13-08-2014 18:17:47
==================================================

Hope someone can help me with this

- Casper