Random shutdown

[Helllearner]

hey guys i just got my new msi gts 250 1gb

the problem is my comp just keep on randomly shutting down after putting this card.

My rig:
Amd phenom x2 545 3ghz
msi gts 250 1gb ddr3
4gb ram
msi 785gt e63 motherboard
Tag 450w psu


The card and core in idle
gpu = 40c
cores = 32c

on load
gpu= max reaches 65-70c
cores= 50c

it shutsdown even faster when i play games or use 3d apps.

so i dont think its a heating problem.

is it that my processor cant take the load?
My gpu isnt getting enough power? 450 is the minimum and i got a 450.
Or my card if faulty?

 

[adairusmc]

Sounds like the power supply to me.

 

[digitaldurandal]

450w no name powersupply. Amps matter and while the PSU probably does put out 450w it likely cannot handle the amps on the 12v line you are drawing. I would look into getting a quality power supply asap. A bad one will take many good parts with it.

 

[Helllearner]

Thanks all
but when i only use it to a 100% not less then 90 then only the comp shuts down.. after 5 mins at max.

ill get back to you all..
im going to test with a 750w psu of coolermaster.

 

[cusideabelincoln]

The power supply probably has OCP. It's a safety feature that will shut down the unit if power draw goes beyond its limit. Sounds like this is what's happening.

 

[Rifter]

agree with above, its the psu.

 

[Helllearner]

unfortunately i did not get to test it out on a 750w psu

So guys would a Gx 550w coolermaster do the trick??

 

[Rifter]

it should, its not a great psu but it should be able to handle it.

 

[OCGuy]

unfortunately i did not get to test it out on a 750w psu

So guys would a Gx 550w coolermaster do the trick??

http://www.newegg.com/Product/Produc...-016-_-Product

That looks cheaper after MIR...

 

[Socratesx]

It's 90% your PSU that is causing you problems. If you plan to buy a new one try not to save money on it and buy a decent PSU. PSU is the most important component of the computer and you must be sure that it does its job right.