Crashes when playing games

[Lenithius]

Hello,
I recently purchased a sapphire hd 6870 and havent been able to play games since because of random freezing and physical memory dumps.
I think it might be a small PSU but not sure.

My specs are:
550w PSU
Asus M5A78L-USB3 motherboard
4gb DDR3 1333mhz jetram
Sapphire hd6870
Amd Phenom 2 x6 1090t black editon @ 3.2ghz
2 terabyte HDDs

Its definitely not temperature since i sit in a room with an aircon of 16degrees and monitor my temps constantly even while in a windowed game.

 

[jsc]

What brand PSU?

 

[refillable]

Show us what exactly the PSU is?

If it's a low quality one or it has low amperages, replace the PSU, get something like this: http://www.newegg.com/Product/Product.aspx?Item=N82E16817371044
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371048

 

[Lenithius]

I bought it about three years ago, there is no brand name it just says LPG6-50 550w.
I think it could be that the power supply doesnt have PCI e connectors.
The grapchics card connectors are plugged into normal connectors and not directly into the PSU.

 

[refillable]

Well that is not allowed when you don't plug the PCI-E connectors, that's why it's freezing. Or you mean you use adapters? Upgrade your PSU.

 

[Lenithius]

Yes ill get a better PSU thank you. Im even lagging in warcraft 3. :< Thank you for the fast reply

 

[Lenithius]

Im thinking about buying the Coolermaster RP/RS-650-PCAR eXtreme power plus 650w
What do you think?

 

[refillable]

You can go with better brands, how much is it?

 

[sunnk]

dont buy that psu buy psu of powerful brands like corsair,antec,seasonic etc.

 

[geekapproved]

Im thinking about buying the Coolermaster RP/RS-650-PCAR eXtreme power plus 650w
What do you think?

Oh God no.........

Look, the wattage claims mean nothing. It's all about amps on the +12v rail and efficiency. If the psu doesn't even have a basic 80+ efficiency certification, don't bother.

This is how psu's are classified:

CRappy 70%
80+ certified
80+ bronze
80+ silver
80+ gold
80+ platinum

That coolermaster is "crappy 70%".

The psu you have now likely put's out about 300-350w max, not 500w.

Where are you buying from and what is your psu budget?

The power supply is the most important component of the computer, yet I never understand why people trust their new high end parts to some generic piece of crap.