Random Shutdown = High temps or Bad PSU

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Hello,



I upgraded my PC and everything went fine until I started some GPU intensive games. The problem is this happens randomly and mostly on CoD4 with a XFX 4850 512 MB. I monitored my gpu temps with GPU-Z and the max ever the card reached is GPU temp - 75 . GPU memory goes highest 81 *c . My room temperature is around 30 * at least .


I had suspicions over my GPU temps , but if a card overheats only the display goes off and other components still keep running , right? Anyway , now my doubts are on my Power supply . Its a 450 watt and I found it has like two +12v rail each having 17 A and 16 A . I bought the Power supply in a hurry , it costed me around 550 Indian Rupees i..e like 11-12 $ . I read a review saying 18 A is safe so I just had the PSU . Please correct me if I'm wrong.


I need help if its the GPU temps are the making the PC shutdown or the Power supply. thanks

 

[50bmg]

temps look ok. it sounds like power. The amps look ok. But 450 watts are low. $12 lol. Cheap amps are just that cheap. Get a better psu with 550w plus and mid 30A combined amp range.

 

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Can I use a Corsair 450 watt ?. Anything more than 500 watt costs a lot here.