Power supply requirement:Thermaltake vs ATI Radeon Tags: Power Supplies Thermaltake Components Product Last response: August 5, 2009 3:36 AM in Components Share Laurel August 4, 2009 9:32:35 PM In Thermaltake website (http://www.thermaltake.outervision.com/), using power supply calculator Thermaltake suggest that TR2-420W power supply is enough for the following configuration PC. System Type: Single Socket Motherboard: High end Desktop CPU: Intel Core 2 Quad Q9650 3000 MHz (CPU Utilization: 100% TDP) RAM: 4 Sticks DDR2 SD RAM (4GB) Video Card: ATI Radeon HD 4850 (Video Type: Single Card) Hard Drives: SATA 1HDD DVD-RW/DVD+RW Drive: 1 Drive System Load : 100% (peak load) After Calculation The recommended PSU Wattage is 306W. And the pop up comes along with the calculation page suggesting TR2-420 W Power supply. But according to ATI Radeon the HD 4850 card requires minimum 450W PSU. Now I want to know whether 420W PSU is enough for the card or not. More about : power supply requirement thermaltake ati radeon beehew August 4, 2009 10:01:59 PM I'd go with the 450 figure at the least. You want some headroom between your estimated usage and PSU rating. xaira August 4, 2009 10:12:30 PM for real Can't find your answer ? Ask ! Get the answer englandr753 August 5, 2009 3:36:58 AM If you aren't adding much more hardware then go with this psu: http://www.newegg.com/Product/Product.aspx?Item=N82E168... If you want more headroom for a more powerful video card later down the road then spend the extra few bucks now and avoid having to replace the psu along with the new card. This is the best buy atm from Corsair: http://www.newegg.com/Product/Product.aspx?Item=N82E168... Can't find your answer ? Ask ! Publish Related resources Antec Vp450 vs Thermaltake tr2 cable management 600w Forum ATI Radeon 6850 and 5770 Power supply requirement ?? Forum Your Opinions on Thermaltake Graphic Card power supply Forum Power Supply Requirement ? Forum Thermaltake 430W Power Supply enough for e6400+7900gt OC? Forum GTX650 power requirement ? Forum Sapphire ati radeon 4670 graphics card power requirements Forum Power supply requirements for ati radeon 6670 Forum Power Requirements and Specs For Popular Graphic Cards Guide Forum Radeon hd 5850 vs hd 5830 power supply Forum XFX ATI Radeon HD 4650 1GB DDR2 Power Requirement !!! Forum Ati radeon 5770 power requirement Forum Power supply question Forum Power supply requirements for ati radeon 6670 Forum Best Cpu cooler for ~40 Forum 850 Watts of power Forum Power Supply question Forum Power Supply Support For This Motherboard? Forum AMD or INTEL with Radeon Cards? Forum Phenom II x4 955 and Crossfire Power Supply? Forum More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !