Solved Crossfire 5850's with 650W PSU? Tags: Power Supplies Crossfire HD Components Product Last response: February 26, 2010 12:57 PM in Components Share GlenK February 25, 2010 8:01:48 PM I'm looking into building a PC with a X4 955, 2 HD's, and for now a single 5850, but would like to add another in the future. This seems like a pretty good deal, just wanted to verify that I could run two 5850's in the future with this PSU. http://www.newegg.com/Product/ComboDealDetails.aspx?ItemList=Combo.326297 More about : crossfire 5850 650w psu Best solution JohnnyLucky a c 248 ) Power supply February 25, 2010 11:23:42 PM First, the system requirements! Here are the official power requirements for the ATI Radeon HD 5850 and HD 5870 video cards. ATI Radeon™ HD5850 System Requirements: PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard 500 Watt or greater power supply with two 75 watt, 6-pin, PCI Express® power connectors. 600 Watt or greater power supply with four 75 watt, 6-pin, PCI Express® power connectors for ATI CrossFireX™ technology in dual mode. ATI Radeon™ HD5870 System Requirements: PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard. 500 Watt or greater power supply with two, 75 watt, 6-pin, PCI Express® power connectors. 600 Watt or greater power supply with four, 75 watt, 6-pin, PCI Express® connectors for ATI CrossFireX™ technology in dual mode. The power supply recommendations are for an entire pc system. Second, the power supply! The XFX power supply you linked to is a very good psu. It should not have any problems powering your system with two 5850's. Here is a link to a competent technical review: http://www.hardwaresecrets.com/article/899 GlenK February 25, 2010 11:24:33 PM Best answer selected by GlenK. Related resources Quality psu at $80 or less, able to Crossfire 5850's ? - Forum 5850 crossfire - is 650W PSU enough? - Forum HD 5850s in Crossfire with 550W PSU - Forum 2x Radeon 5870 Setup With A Thermaltake QFan 650W Modular PSU - Forum Can my PSU support Crossfire 5850's ? - Forum Can't find your answer ? Ask ! Get the answer JackNaylorPE a c 124 ) Power supply February 25, 2010 11:29:19 PM Size looks good but is a good PSU ? All I could find was this: http://www.jonnyguru.com/modules.php?name=NDReviews&op=... The Black Editions fared better: http://www.jonnyguru.com/modules.php?name=NDReviews&op=... but considering the price on that one on newegg, I don't think they are in the same league. JohnnyLucky a c 248 ) Power supply February 26, 2010 12:01:38 AM Jack - never mind! Too many models! Confuses the heck out of me. GlenK February 26, 2010 12:57:59 PM I believe the one on newegg is the same as the one you linked Jack(the first link) and the same one Johnny linked as well. Even though the model name doesn't say XXX on newegg, the model number listed: P1-650X-CAG9 is the same model number for the 650 xxx listed on XFX's website http://www.xfxforce.com/en-us/products/psu/xxx/P1-650X-CAG9.aspx Also, according to XFX's website, they only make one model of 650w power supply, so it's gotta be the same one as far as I can tell. Can't find your answer ? Ask ! Publish Related resources : ForumBoth Crossfire 5850's AND 6850's NOT working right??? properly powered ForumPLEASE HELP!!! HOW DO I PROPERLY INSTALL 2 5850s IN CROSSFIRE ? ForumHow man 12v amps will I need to crossfire two 5850s ? ForumUltra LSP750 for 2 ATI 5850's in crossfire ForumCrossfire 5850s in a Cooler Master Scout ForumTrying to Crossfire 6870s, will this 650W PSU suffice? Forum650w psu and 6950 2gb crossfire Forum2 5850s on a 550w PSU ForumPSU needed for basic overclocked i5 750 / 5850 crossfire rig? ForumThermaltake 850w PCI-E question ForumNeed help with upgrading my PC; tips on things I should buy ForumAcer® AS5740-5780 15 6 Widescreen Notebook Computer With Intel® Core™ i3-330M Pr ForumCompatable with powersupplies with 2x2 12 V and 2x10 power connectors? Forum[Solved] I need help with Sound Card ForumLock-Up Problem - PSU issue? Challenging problem More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !