From the Power Supply Calculator I got that I'd need 1090 watts Tags: Homebuilt Overclocking Power Supplies Systems Product Last response: September 28, 2009 5:11 PM in Systems Share terron September 28, 2009 4:39:11 PM http://spreadsheets.google.com/ccc?key=0Aj-_GkpiUe6KdEN... I will be overclocking my cpu and will have a controller connected to my computer very often. Once I get a little more money I'll get another 4870 and crossfire them. Is a 1200 watt psu really needed? Also, will that cooler be functional? More about : power supply calculator 1090 watts obsidian86 a b B Homebuilt system a b K Overclocking a b ) Power supply September 28, 2009 4:41:19 PM not a chance, a quality 750 watt will handle 2 cards fine if you still not comfy get an 850watt instead thats one of the best coolers it will work fine just get the 1366 version m 0 l terron September 28, 2009 4:47:46 PM I knew that much power wasn't needed. I'll go with a 850:http://www.newegg.com/Product/Product.aspx?Item=N82E168... m 0 l Can't find your answer ? Ask ! Get the answer obsidian86 a b B Homebuilt system a b K Overclocking a b ) Power supply September 28, 2009 5:11:17 PM thats a good one m 0 l Can't find your answer ? Ask ! Publish Related resources SolvedI need some help with the power supply calculator Forum SolvedHow much watts do I need for my power supply Forum SolvedHow Much Watts I need for my power supply for My i7-4930k 780 ti sli Forum SolvedHow much watts for a power supply do I need for two gtx 760 in sli Forum SolvedHow many watts in a power supply would i need for future Forum SolvedHow many watts do I need my power supply to be with this system? Forum SolvedHow many watts do i need for my power supply? Forum Solveddoes my 400watts power supply can handle gts250 1gb? need help pls,thanks in advance! :) Forum SolvedHow much watts I need for my Power supply ASUS GTX 780 and Intel i7 4770K Forum SolvedWhat power supply (Watts) do I need for my PC? Forum SolvedHow many watts for a power supply needed for this build? Forum SolvedI've got an i3 dual core, a gtx 550 ti, and an asus P8H67-V Mobo. What kind of power supply would I need, for less than $80, t Forum SolvedI've got an i3 dual core, a gtx 550 ti, and an asus P8H67-V Mobo. What kind of power supply would I need, for less than $80, t Forum SolvedPower supply is 262 watts graphics card needs 300 will any thing happen Forum SolvedHow many watts i need in a new power supply ? Forum Power Supply - How many watts do i need Forum how many watts power supply will I need Forum POWER SUPPLY NEED CALCULATOR ! Forum SolvedWhat Watt power supply would i need for these 2 cards in SLI? Forum How many watts does a power supply really need to have to power two 7990s? Forum More resources Read discussions in other Systems categories Homebuilt New Build Prebuilt Cases Power Supplies RAM CyberPower !