demon5 Posted August 31, 2008 Share Posted August 31, 2008 ok. went and bought a 2nd 9800gx2 and threw it on my board. now as soon as windows loads the driver (which powers on 2nd card) the screen just stays blank. running xfx 780i with 4 2gig ******** reaper 1066 hpc sticks and intel Q9450. 2 sata hard drives and 1 ide dvdrw in antec 900 case. when I called evga about it had me try each card alone which worked perfectly fine alone. told me power supply probably didn't have enouph power to run both. When I look at websites like http://extreme.outervision.com/secure/psucalculatorpro.jsp it says in the 600W range. and also see responses on here with people running 2 of the dual gpu ati cards which I'm thinking probably have similar power needs and ram guy says should work tried going down to 2 ram chips. no other cards in system. and lowered to stock clocks on everything. still had same problem. Link to comment Share on other sites More sharing options...
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