2x 6950 unlocked in Crossfire Tags: Graphics Cards Intel i7 Crossfire Power Overclocking Last response: September 24, 2011 3:33 AM in Overclocking Share trihedral a b K Overclocking September 17, 2011 8:56:33 AM with a i7 950 @ 4.2ghz, 6GB Mushkin 1.5V 7-8-7-24 & SSD Can a 850W power these items? i have 1 card clocked to 1000 core / 1500 memory @ 1.25v. what if i had two cards at this speed? More about : 6950 unlocked crossfire StefanTheGreat September 17, 2011 11:18:04 AM What are the normal clocks of your card? What kind of PSU do you have? -Brand? -Real power or crap power? Daeus September 22, 2011 9:23:46 AM OP 750W would be enough to run 6970 CF, which is what you're looking at if you unlock your second card. Just google 6970 CF power supply requirements. You should be safe with 850W even with your i7 OC. So long as the PSU isn't old and degraded. The safest way to unlock the second card is to remove the first and perform the unlock. Then you plug the second card back in and crossfire your unlocked 6950's, resulting in 6970 Crossfire performance. Can't find your answer ? Ask ! Get the answer trihedral a b K Overclocking September 24, 2011 3:33:53 AM clocks are 1000/1500 stable on air. with changed auto fan settings. PSU is an Thermaltake 850W, pretty good psu. The 2nd msi R6950 unlocked and clocked to 1000/1500 stable on air too. just need to get some feedback before i put them together for Crossfire. Can't find your answer ? Ask ! Publish Related resources: Forum6950 unlocked crossfire vs GTX 580 ForumEyefinity 2x 6950 s Forum2x 6950 2gb ForumLooking for alternative to Crossfire AMD Radeon HD 6950 2GB ForumBF3 6950 crossfire issue ForumEyefinity with 2x 6950 and 3 displays all with DVI ports Forum6950 unlocked crossfire not working Forum6950 unlocked . To Crossfire or not to. Have 2 in hand, help me decide! ForumSLI 560TI vs Crossfire 6950 vs 580 ForumWill a 650w run 2 crossfire 6950 s? ForumFixed Voltage Forum6950 dual bios...? Forum[Solved] Sapphire 6950 2gb ! issue Forum6950 artifacting in Crysis 2? Forum6950 Unlocked Success! Forum[Solved] HD 6950 question... Forumsite:tomshardware com 6990 crossfire problem Forum6950 Unlocked Instability ForumJust unlocked cores of phenom ii x2 be ForumWater-cooling 3 Radeon 6950's More resources Read discussions in other Overclocking categories CPUs Motherboards Memory Chipsets Heatsinks Water Cooling Intel AMD !