Windows Sound Scratching and Freezing

[Leoking775]

Hi,
In my Computer i am having these Sound Issues and Freezing Issues in Youtube or just playing Music.Sound just starts to freeze and make wierd noise.
I just had a MSi GTX 750ti installed in my Computer but i don't know if thats causing it.Also is it normal for 750ti to run at 75*C under load,these were the temperatures derived from Heaven.The GPU is just 1 month Old.So should i put Aftermarket Thermal or Stock?
1.My Computer Specs are as follows :-
PSU: Corsair VS450
Motherboard: P5KPL - AM/PS
Processor: Intel Pentium Dual Core E5300@2.6Ghz
GPU: MSi GTX 750ti
RAM: 4GB Kingston
Case Airflow: 6x120mm Fans (3xIntake) and (3xExhaust)
Another Thing,On benchmarking on Heaven the GPU Temperatures go high as 75*C but during idling use the are only 40*C Average.Also i noticed on MSi Afterburner my GPU fans always run on 29% and never go up,during benchmarking when GPU hit 75*C the fan speed was still the same @29%.MSi Afterburner is set to default and Fans speeds are set to "Auto" + I never do Overclocking.

 

[Lutfij]

1| Can you please pass on your full system's specs inclusive of your OS and connected peripherals+audio equipment?
2| Depending on your chassis and the airflow within the chassis as well as the benchmarking. If you have the low profile cards then the temps you've stated are somewhat high but to be expected under load.
3| Have you followed through this guide when installing your GPU drivers?
4| Before you open the cooler and void your warranty, it'd be best to pass on the answers to the questions above and probably back off on the experimentation.

 

[Leoking775]

1| Can you please pass on your full system's specs inclusive of your OS and connected peripherals+audio equipment?
2| Depending on your chassis and the airflow within the chassis as well as the benchmarking. If you have the low profile cards then the temps you've stated are somewhat high but to be expected under load.
3| Have you followed through this guide when installing your GPU drivers?
4| Before you open the cooler and void your warranty, it'd be best to pass on the answers to the questions above and probably back off on the experimentation.

1.My Computer Specs are as follows :-
PSU: Corsair VS450
Motherboard: P5KPL - AM/PS
Processor: Intel Pentium Dual Core E5300@2.6Ghz
GPU: MSi GTX 750ti
RAM: 4GB Kingston
Case Airflow: 6x120mm Fans (3xIntake) and (3xExhaust)

2.I have nothing Special Connected to my CPU.Just Basic things and a printer.

3.No I just installed GPU Drivers and i think there was some problem there during installation as i had faced crashing and some problems during GPU Drivers installation.

Another Thing,On benchmarking on Heaven the GPU Temperatures go high as 75*C but during idling use the are only 40*C Average.Also i noticed on MSi Afterburner my GPU fans always run on 29% and never go up,during benchmarking when GPU hit 75*C the fan speed was still the same @29%.MSi Afterburner is set to default and Fans speeds are set to "Auto" + I never do Overclocking.