Hello everybody,
so basically i recently bought a new Graphics card, GeForce GTX 560 Ti. So what happend was that sometimes when i play WoW either if i raid or do bgs, WoW sometimes gets stuck it doesen't freeze it just stops responding, it happend when i was on skype in a convo, and my friends voices started to sound very wierd for about 2-3 seconds.
Here is the Graphics card Information:
Drivers: 285.62 the newest one.
Supports DirectX 11
CUDA-cores 384
Graphic clocking 900 MHz
ProcessorClocking 1800 MHz
Memory Clocking 2000MHz ( 4000 MHz Computer speed )
Total available graphic memory 3839 MB aka 3,8 gig
Video memory 1024mb GDDR5.
My specs: Operative system; Windows 7 Home Premium 64-bit 6.1, build 7600.
System Creator: Acer
System model: Aspire m3802
BIOS: Default System BIOS.
Processor: Intel Core2 Quad CPU Q8300 @ 2.50 GHz (4 CPUs)
Memory: 6144mb RAM aka 6 GB of RAM.
I got 8734 gb Available, and i'm using 3500 mb.
And with that Graphics card i had to buy a new Power supply, Aka Netagg, if that's familiar to anybody of you. The Power supply supports 500Watts. And the Graphics card itself needs 500Watts, I got 2 Fans and one in the powersupply not to sure, i'm not the guy who has any clue about computers, i had the people in the store Install the Graphics card, Power supply technically said putting it into my PC. They also installed Drivers to my gfx card and Ran a Burntest, and a FurMark Stresstest.
My PC also tends to become quite hot, but not extremely hot just hot, and since i don't know much about computers i obviously think it's bad. The heat variates and sometimes jumps up and then goes down.

Also if i open the Alternative manager (ctrl + alt + delete) and click on the performance tab,
My Processor usage, sometimes jumps up from 2% of usage to like 50% and then down again.

Alright, so i wrote alot of Info, this is pretty much what i can say right now cause i'm not good with computers.
[i]I would be very grateful if anybody would be able to somehow help me with this Issue, Oh and i forgot to mention i called the store where i bought my power supply and the Gfx card, and 1 more Fan, that they said my power supply would be enough for my gfx card.
Thanks for reading this and i hope someone will be willing to help me with this.
Bare with my English please :)
Regards Benjamin