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Insufficient PSU?

Hey guys i am just wondering if my psu doesnt supply well enough my asus matrix 5870 in high load mode.Its doubtful because i cant overclock my card,sometimes i have random resets,coil whine sound coming from the gpu,etc.... When i take out 5870,it works really fine and stabile with the onboard hd 4200.here are my some another components i need your view about changing my psu with a 800w corsair.I dont want to burn my money in case i am not right.I need your suggestions

5 fans that i dont know what size they are
amd athlon2 x3 440
ddr 3 * 3
550w highpower psu
asus matrix 5870
a regular
Thank you :)
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  1. Best answer
    erhantasdelen said:
    Hey guys i am just wondering if my psu doesnt supply well enough my asus matrix 5870 in high load mode.Its doubtful because i cant overclock my card,sometimes i have random resets,coil whine sound coming from the gpu,etc.... When i take out 5870,it works really fine and stabile with the onboard hd 4200.here are my some another components i need your view about changing my psu with a 800w corsair.I dont want to burn my money in case i am not right.I need your suggestions

    5 fans that i dont know what size they are
    amd athlon2 x3 440
    ddr 3 * 3
    550w highpower psu
    asus matrix 5870
    a regular
    Thank you :)


    This really looks like a psu problem, what is your psu model? some psus says that can handle 550w, and can't co over 350w, so you need to know if your psu is not one of those.
  2. Best answer selected by erhantasdelen.
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