so i ecently got in my mind that i want to build a mini-it pc, i have all the components except the videp card, i can't decide if a gtx 645 or a hd 5850, ill be using a Silverstone SG05 with 300watt psu, now i've seem people use the hd 5850 with thtsame case without any problems, my question is will it run on that 300 watt psu? the rest of the specs below 1 core i5 2500k 8gb ddr3 (2x4gb stcks) Silverstone SG05 with 300wlim blu-ray dvdr-rw) 1 1tb 7200rpm HD or a 64gb ssd drive and foxconn h67s itx mobo am i cramping to much stuff that the psu can't hadddle it???? maybe a corsair h50 (if it fits and i have enough power to run it) so what do you guys think? possible with either video card i stated above????
That 300W SFX power supply doesn't have at least two 6-pin PCI Express Supplementary Power Connectors that either of the two graphics cards, that you have specified, will require. This is a confirmation that it is insufficient to properly power the configuration you want to assemble. You shouldn't be running a power supply at close its maximum limit because it will accelerate its component aging (i.e. shorten its life due to excess heat).
The SST-ST45SF 450W SFX form factor power supply with 36 Amps from its combined +12V rail(s) is required.