new cheap psu

[mig91]

i have a computer with 5970, and im going to buy new low cost psu
so which one is better ?

http://cdon.fi/kotielektroniikka/xfx_550w_core_edition_psu_p1-550s-xxb9_atx_12v%2c_atx12v%2c_eps12v_upp_till_82%25_(80_plus_bronze)-14930426
or
http://cdon.fi/kotielektroniikka/super_flower_%252f_axp_power_supply_with_120mm_fan_-_650w-17378744

[Tittiez]

How about this?

http://www.newegg.com/Product/Product.aspx?Item=N82E16817822015

If you have to choose the two above I would go with the XFX.

[mig91]

How about this?

http://www.newegg.com/Product/Product.aspx?Item=N82E16817822015

If you have to choose the two above I would go with the XFX.

pretty nice, but i cannot find any store in finland who are selling that psu. thanks for reply

[HonorMe]

Go for the XFX, you only have 1 card being powered so 550W will be plenty. You dont need 650-1000 until you start running 4+ cards on your system.

[rudrigorc2]

this 5970 will pull alone 400watts

I would get at least a 650watts PSU for safety and efficiency.

[mig91]

this 5970 will pull alone 400watts

I would get at least a 650watts PSU for safety and efficiency.

but the money is the problem  i must underclock that card

[Tittiez]

this 5970 will pull alone 400watts

I would get at least a 650watts PSU for safety and efficiency.

but the money is the problem   i must underclock that card

You should be fine. I have a 5770 running with a 365watt power supply, and the cards voltage is risen.

[Electricbees]

this 5970 will pull alone 400watts

I would get at least a 650watts PSU for safety and efficiency.

I run 5970's, and they pull much less than that when memory is downclocked.
More like, 250-300 watts a piece for me, but their cores are overclocked as well.

You should be safe with the XFX.

[GernMiester]

Dont buy a cheap PSU buy a good PSU

[zvs]

Dont buy a cheap PSU buy a good PSU

yah, really

get

http://www.newegg.com/Product/Product.aspx?Item=N82E16817104097

that

i guess i'll add that i have 2 fsp group aurum gold's now, they're like seasonics except $20 cheaper and not packaged as nicely.  (dont get their non-gold versions)