Solved How much Power do I need? Tags: Power Supplies Power Components Last response: February 11, 2010 2:01 PM in Components Share adamlevy February 11, 2010 3:28:48 AM How much power do I need from a PSU for the following setup? CPU: AMD Phenom II X4 965 (125W) MOBO: 790GX Motherboard with Sideport RAM (haven't decided which one) RAM: 4GB RAM VIDEO: (integrated 790gx) HDD: 2 WD Caviar Black 750GB HDDs I'd like enough headroom to drop in a decent discrete graphics card down the road if the IGP is insufficient for my (non-gaming) needs. Thanks! More about : power enzo matrix a b ) Power supply February 11, 2010 3:58:31 AM The CPU and graphics card on the pci-e bus draw the most power. For your current setup I doubt you'll need more than a good quality 400W like the OCZ series or the antec earthwatts or a corsair. Personally I would put in a 600W to give me decent headroom. However, everyone's opinion of "decent" is different. adamlevy February 11, 2010 4:13:58 AM Quote:everyone's opinion of "decent" is different ^ Too true... For grins, let's say I threw in a single Radeon HD 5850. Would your 600W recommendation cover that as well? Related resources How much power do I need ? - Forum How much power will I need for this gaming system? - Forum How much power do I need ? - Forum how much power supply do i need - Forum How much power do i need ? - Forum Can't find your answer ? Ask ! Get the answer Lutfij a b ) Power supply February 11, 2010 11:12:40 AM you can run a ati 5870 over-clocked edition and yet have enough headroom to run in crossfire - according to the power specs of the card. SO go by enzo matrix. Best solution Lutfij a b ) Power supply February 11, 2010 11:15:06 AM get the 600W adamlevy February 11, 2010 2:01:23 PM Best answer selected by adamlevy. Can't find your answer ? Ask ! Publish Related resources: ForumWould my power supply be enough and how much space do i need for sli ForumThe same old question: How much power supply do I need ? ForumHow much power will I need ? ForumHow much power do I need ? ForumHow much power will I need ForumHow much power do i need ? ForumFirst Build - Need Help and How Much Power ? ForumHow much power does my computer need ? ForumHow much power do i need formy new Pc !! ForumHow much power do i need formy new Pc !! ForumHow much wattage does my power supply need to have? ForumHow much power do i need ? ForumHow much power do I need ? ForumPSU Help ForumHow much Wattage of PSU Power do I Need? More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !