> http://www.skytech.lt/vga-1gb-gddr3-pcie16-gt430128b-gvn4301gi-gigabyte-p-73587.html , 
> tik kad PSU reikalauja 400W.

O is kur videlkai zinoti, i kokia sistema ji nukeliaus ir kiek cia tu W uzsiprasyti, kad viskam uztektu? :)
http://www.xbitlabs.com/articles/graphics/display/gigabyte-geforce-gt430.html
Pati eda max 50W (ir tai tiek ne kiekvienai), bet zino, kad visai sistemai be 400W neapsisukt? :)

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http://www.behardware.com/articles/817-3/the-energy-consumption-of-93-graphics-cards.html
GTS450 - 16W idle / 108~113W load
HD5570 - 10W idle /  36~ 41W load
HD5670 - 14W idle /  56~ 64W load
HD5750, HD6750 - 17W idle /  76~ 84W load
HD6570, HD6670 - 12W idle / ~60-66W load (su GDDR5)
 

Daugiau:
http://www.hardwarecanucks.com/forum/hardware-canucks-reviews/27732-sapphire-hd-5670-1gb-gddr5-review-18.html
http://www.behardware.com/articles/781-6/report-the-true-power-consumption-of-73-graphics-cards.html
http://en.wikipedia.org/wiki/Comparison_of_AMD_graphics_processing_units#Northern_Islands_.28HD_6xxx.29_series

http://www.tomshardware.com/reviews/geforce-radeon-power,2122-6.html
GeForce 8600 GTS (512 MB) - 28.0 / 61.0
GeForce 8600 GTS (256 MB) - 23.9 / 56.0
GeForce 8600 GT (256 MB) - 20.6 / 46.1

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http://www.behardware.com/articles/778-15/giant-roundup-168-intel-and-amd-processors.html
E8600 - nuo 12V jungties ima 3.5W idle / 40.1W load

MB,CPU,HDD manau sutilps i kokius 70W (t.y. ~6A)
Video, jei ir 84W (~7A) .. sumoj koks ~13A, jei ant PSU 
+12V bent 15A, sakyciau galima bandyt laime ir su HD*570 videlkom..