PC shuts down

My specs :

AMD FX(tm)-6300 Sic-core Processor , 3.50 GHz
8 GB Ram
NVIDIA GeForce GTX 750Ti
Windows® 7, 64 bit
550 watt power supply

I installed this video card about a month ago and couple days after that my pc shut down sudenly.
About a week later it happened again (note: I have to w8 beofer pc starts up again).
Today it happened twice whille playing heroes of the storm on high
and using skype call.
What could be causing this ? the cpu seems to run about 60C when this happenes but still why ? my specs should be fine for this video card or not ? Also i have an older video card installed atm and i get same heats on my cpu ...

 

What you might be able to do is to disable your old video card. Go to the bios by restarting computer, press f2, See if your old vid card is listed and simply disable. There may be a conflict with the 2 vid cards. Is your computer up to date? Do you have these drivers? https://driverscollection.com/?H=GeForce GTX 550 Ti&By=NVidia&SS=Windows 7 64-bit, Finally, have you checked the specs fully? http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-550ti/specifications. Try these things and see what happens.

 

But how whould that help ? and i only have 1 video card installed at the moment the 1 discribed above(750 Ti).
And i dont have the 550 Ti you linked above i have the 750Ti !

 

What's the brand of power supply??

 

HKC V-550 this is my pcu.

 

HKC V-550 this is my pcu.

 

not much info on that psu.............. are u from europe???
seems like it is a cheaper brand (china) and not very good http://www.tomshardware.com/forum/281049-28-power-supply

u might want to install a decent psu and see if the problem persists corsair,antec etc

 

http://www.compustunt.nl/Webwinkel-...V-550-550W-Silent-Power-Supply-black-red.html this is my psu !
I got my pc fro this site, it wasnt costum build exept for the video card.
Yes i study in the netherlands.

 

You are right I gave the wrong specs. Here are the correct ones: http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-750-ti/specifications. I was under the impression that the old video card drivers were still running on your system with the new one also installed. This can cause the computer to keep shutting down if those drivers are still present. Let me also correct myself about the location of the video drivers. It should be under display adapters not under sound, video and game controllers in the device manager. Depending on the manufacturer, the old drivers could be causing the conflict so try to remove them. The 750 ti should have better performance with less power usage and 95 degrees c is the max., but I do not know for sure if the 60 c indicator has any bearing on your problem.

 

But my pc doesnt shut down all the time, i have had this video card for about a month now and it happened 2 times untill yesterday where it happened 3 times on the same day, now i installed my old video card and havent had a problem untill now, some also said that my psu is crap :/ .

 

This is what I came up with. If you have a 12v rail with 12 amps, it is absolute crap. especially if the manufacturer is unknown. The Corsair CX430 seems to be a much better choice. If your psu only has 12 amp this is not enough. Look at the 12v rail and 32 amp specs. below. I would not use your current psu.
CORSAIR CX series CX430 430W ATX12V v2.3 80 PLUS BRONZE Certified Active PFC Power Supply

(978) | Write a Review
In stock. Limit 5 per customer.

• ATX12V v2.3
• 80 PLUS BRONZE Certified
• 100 - 240 V 47 - 63 Hz
• [email protected], [email protected], [email protected], [email protected], [email protected]

 

I would try another psu
The corsair cx430 is a good psu, I use it on builds a lot ....BUT with computers with onboard video
...... If You have a video card ( not sure of the power requirements for your card) it's a good idea to get a more powerful power supply
Corsair is a great brand tho'

 

Okay. Look at your psu and give me the info. on it such as voltage, amps etc.. if there is info. available. I know it has 550 watts already but you have to look at amperage as well.

 

Thanks, Did you have to disable the onboard video drivers in the device manager as well before installing the Corsair?