750 Watts' enough for 2 GTX275? Tags: Graphics Cards SLI Power Graphics Last response: February 22, 2010 12:44 AM in Graphics & Displays Share Veba February 21, 2010 10:26:44 PM Will a Chieftec Super Series 750W PSU be enough to power 2 GTX275 in SLI? More about : 750 watts gtx275 Yuka a b U Graphics card February 21, 2010 10:42:03 PM That card uses 219W (around 18.5A) from the +12V rails, so... Yes it should. From what I found, your PSU has 4 +12V rails giving 18A each. Get some adaptors and you'll be fine. Just make sure not to attach way too many fans, DVD's or HDD's per rail Cheers! volks1470 February 22, 2010 12:09:50 AM My 750w psi powered my 3.7ghz X3 720 and overclocked gtx 295 just fine. Although it is a corsair Can't find your answer ? Ask ! Get the answer JackNaylorPE a c 187 U Graphics card February 22, 2010 12:44:03 AM This says twin 275's will draw 230 watts: http://www.antec.outervision.com/PSUEngine Run your whole system through the calculator.....I wouldn't expect much from a Chieftec tho. Can't find your answer ? Ask ! Publish Related resources: ForumPower Supply enough for SLI GTX275 ? ForumCan Corsair HX620 Take On 2 GTX275 ? ForumGTX275 TriSLI vs 5870 Crossfire. Building New System ForumGTX275 SLI on a Corsair TX650 v 2 ? ForumIs 750 w Corsair psu enough ? Forum750 watts power supply enough ForumINTER-TECH EPS- 750 w PSU enough for gtx 275 SLI? Forum750 watts enough ? ForumBest 250-300$ graphic card (4850X 2 , 4890, GTX275 ) ForumIs 750Watts , 62Amps enough ? ForumWould 750 watts be enough ? Forum750 Watts enough for 580 SLI? ForumIs 750watts enough power??? ForumGTX275 OCX /cry Forum8800GTX died. Buy HD4890 or GTX275 ForumUltra LSP 750 750-Watt is enough for a zotac 660ti amp edition? ForumPlease help me choosing a GFX Card ForumBad HD 5750 or PSU not enough? ForumZalman 850W enough for 2xgtx260 SLI (super overclocked version though) ForumIs 850W psu enough for an OC'd 5970? More resources Read discussions in other Graphics & Displays categories Ati GPUs Graphics Cards Gtx HD Monitors SLI Crossfire Tuner Cards Radeon Video Diamond Multimedia Matrox Nvidia Palit PowerColor Asus Games !