Solved Need help with PSU and wattage. Tags: Power Supplies Graphics Cards Components Last response: October 2, 2013 7:46 AM in Components Share Bob142 October 2, 2013 5:51:18 AM How much wattage does a Q6700 and a GTX 650 (1gb) need at full load? The rest of the system specs arent much, just 3 gigs of ram..160gb hard drive..and a CD thing. The pc currently has a liteon 300w in it and is running fine idle and using the internet...but im a tad afraid to play a demanding game like crysis 2...because i dont want my pc to blow up. I am having an Antec VP-450 put in soon...i dont know if 450W is enough or not....the CPU tends to go at 100% usage when playing demanding games. More about : psu wattage Best solution SR-71 Blackbird a c 1926 ) Power supply a c 732 U Graphics card October 2, 2013 7:46:57 AM Yes the Antec 450 is more than enough.You won't even come close to max with those specs. The CPU and card will pull 160 to 170 , the rest of your system not much at all. Good idea to get rid of the liteon PSU. Share Can't find your answer ? Ask ! Publish Related resources SolvedNeed Help With PSU Wattage Choice Forum SolvedNEED HELP - PSU Wattage Forum SolvedNeed Help figuring out what wattage psu i need? Forum Solvedneed advice on psu wattage. help please. Forum SolvedNeed help in choosing the psu of right wattage. Please help me. Forum SolvedHELP! What PSU wattage do i need? Forum Need help finding PSU Wattage Forum Need Help Not Sure What Psu Wattage ? Forum Need help with PSU wattage + last look at my home build (I think I did my homework!) Forum Need help calculating PSU wattage Forum SolvedHelp Calculating PSU Wattage Needed! Forum Need PSU Help! What wattage?? Forum Can somone help me choose what psu wattage i need ?? Forum Need help on PSU Wattage for gaming comp. Forum SolvedWhat Wattage PSU will I need? Forum SolvedHelp deciding on a psu wattage Forum SolvedWhat wattage of psu do i need? Forum SolvedHelp with PSU wattage decisions Forum SolvedNeed PSU Wattage Reccomendation Forum SolvedHelp with PSU wattage Forum More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !