How many watts?

[jaywald]

I currently have a cheap 500w PSU which is fine for powering my system now but I want a new one in case this one blows and for powering future upgrades. I'm prepared to pay the money for a good brand (Corsair, OCZ, Zalman) but don't know how many watts I need.

Here's what it's going to be powering in the future:

AMD Phenom II x4 965 BE
AsRock 970 Extreme3 Motherboard
Hitachi 320GB 7200rpm HDD
OCZ Petrol 64GB SSD
DVD drive
8 case fans
Sapphire Radeon HD 6870 1GB GDDR5 (Possibly Crossfire but probably not)
Cooler Master Hyper 212 Evo CPU Cooler

 

[kiezz]

http://www.thermaltake.outervision.com/ psu calculator

without crossfirethe gpu a 550w would be good i can recommend this corsair one
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139032&Tpk=corsair%20550w

if your planning on using crossfire id up the supply to a 750w

 

[jaywald]

Thanks, I'll probably go with the the PSU you recommended or a 600w Corsair PSU as I like Corsair. When I put the components in I hope to buy it came up with 450w but I hope to hook up my surround sound and fan controller.

Thanks