650W enough to power this system?

[Brendy]

Hi all,

Thanks to everyone that helped me decide in the first thread. I decided to create a new thread so I wouldn't derail that last one.

I've settled on everything but a power supply for this build. I had thought of buying a Corsair TX-650W V2 power supply but I decided on getting a water cooling unit so I'm not sure if it'll cut it anymore. Here's my build:

CPU: Core i5 2500K
Motherboard: ASRock Extreme4 Gen3
Graphics card: MSI GeForce GTX 580 Twin Frozr II Overclocked
RAM: G.Skill Ripjaws X F3-12800CL9D-8GBXL
Hard drives: 2x 1TB 7200 RPM hard drives, 1x Corsair Force Series 3 120GB SSD
Cooling: Corsair H100
Fans: 2x120mm fans (come with the H100), 3x140mm fans included with the case
Case: Fractal Design Arc Mid Tower

I'd prefer to keep the power supply as low power as possible so I'm not wasting a lot of power when the computer is idle (which will be more often than full load) but obviously don't want to damage anything or cause system instability with too little power.

 

[Outlander_04]

http://www.realhardtechx.com/index_archivos/Page362.htm

 

[Brendy]

This is where I got the initial power supply wattage from. I want to know if this is enough to power the H100 (I can't find the power consumption of the H100 as a whole, only it's two fans) as well as my other components and leave a little headroom for overclocking. In the last thread I was told that 650W would leave room to overclock but I've changed some components.

 

[Outlander_04]

a couple of watts for the cooler

 

[phatbuddha79]

that PSU is sufficient for your build.

 

[AdrianPerry]

http://www.guru3d.com/article/geforce-gtx-580-review/7

650w should be fine for a GTX 580 build. If you really want to make sure you have lots of room for CPU and GPU over-clocking, consider grabbing a 700-750w unit. However you should still have no problem with a 650w unit.

 

[Brendy]

That's good, thanks everyone.
Finally, is water cooling excessive for this build? I'm not sure if I'll overclock right away (not until my warranty is over, most likely) but the ambient temperatures in the room can reach 30-35 degrees Celsius and is above 25 on a semi-regular basis. Will an air cooler be enough?

 

[AdrianPerry]

Air cooling is plenty for an i5-2500k, even with over-clocking.

Most good coolers (Hyper 212+/EVO being a popular choice) will quite easily be able to handle cooling a 4.5GHz over-clock

 

[Clovis22]

http://extreme.outervision.com/psucalculatorlite.jsp

This could be helpful, if only to give you a rough guesstimate.

 

[Brendy]

Cheers guys. Went for the EVO. Much cheaper than the H100 and it should cope with the ~30 degrees C days fine.

 

[Brendy]

Best answer selected by Brendy.