Power supply Requirements?

[btcomm1]

Lets say you have 6 Sata drives, 1 DVD drive, 2 8800 GTX's would 600 W be enough?

 

[John]

I would say peak consumption of that PC would be around 580W. I'd go with a PCP&C Silencer 750 Quad or SilverStone SST-ST75ZF to allow for headroom and future upgrades.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817256006.
http://www.newegg.com/Product/Product.aspx?Item=N82E16817703009

 

[happy medium]

Originally posted by: John
I would say peak consumption of that PC would be around 580W. I'd go with a PCP&C Silencer 750 Quad or SilverStone SST-ST75ZF to allow for headroom and future upgrades.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817256006.
http://www.newegg.com/Product/Product.aspx?Item=N82E16817703009

Good call:thumbsup:

 

[Boyo]

Agreed. I would go with the 750W also.

 

[locutus12]

http://extreme.outervision.com/psucalculator.jsp <--- updated weekly, accurate as hell.

 

[Operandi]

Assuming you went with the highest-end quad core Core2 based CPU peak power would be in the mid to low 400 watt range at most. A good 600 watt unit would be fine; my suggestion would be a Seasonic M12/S12 or Zalman's ZM600-HP (600watt).

 

[Operandi]

Originally posted by: locutus12
http://extreme.outervision.com/psucalculator.jsp <--- updated weekly, inaccurate as hell.

Fixed.

 

[John]

Originally posted by: Operandi
Assuming you went with the highest-end quad core Core2 based CPU peak power would be in the mid to low 400 watt range at most. A good 600 watt unit would be fine; my suggestion would be a Seasonic M12/S12 or Zalman's ZM600-HP (600watt).

According to Anand.....

http://www.anandtech.com/video/showdoc.aspx?i=2870&p=18

Total system power consumption when running our benchmarks, at times, peaked at over 520W with the SLI setup.

System:
http://www.anandtech.com/video/showdoc.aspx?i=2870&p=20

The OP has 6 HDD's as well.

 

[Operandi]

Originally posted by: John

Originally posted by: Operandi
Assuming you went with the highest-end quad core Core2 based CPU peak power would be in the mid to low 400 watt range at most. A good 600 watt unit would be fine; my suggestion would be a Seasonic M12/S12 or Zalman's ZM600-HP (600watt).

According to Anand.....

http://www.anandtech.com/video/showdoc.aspx?i=2870&p=18

Total system power consumption when running our benchmarks, at times, peaked at over 520W with the SLI setup.

System:
http://www.anandtech.com/video/showdoc.aspx?i=2870&p=20

The OP has 6 HDD's as well.

That's AC power consumption from the wall, not DC power used by the hardware. Assuming that the PSU was operating at 80% efficiency that would put the DC consumption at 416 watts which is roughly I what I stated in my original post.

They also used a 1,000 watt PSU loaded at roughly 50% of it's capacity. A 600-700 unit would have turned in lower AC consumption numbers since PSUs operate at their peak when loaded 60-70% of their capacity.

The hard drives are only significant power draw when they are spinning up. Once they are up and running their power draw is relatively low, even considering that there is six of them.

 

[Captante]

I have a similar machine to the configuration in the OP but with a single 8800GTX & I went with a SeaSonic M12 SS 700 watt PSU which is admittedly more power then I need but thats the way I prefer it.

 

[Oyeve]

Originally posted by: John
I would say peak consumption of that PC would be around 580W. I'd go with a PCP&C Silencer 750 Quad or SilverStone SST-ST75ZF to allow for headroom and future upgrades.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817256006.
http://www.newegg.com/Product/Product.aspx?Item=N82E16817703009

Ditto! I use the PCP&C Silencer 750 myself for all the stuff in my system. A little overhead is a safe bet.

 

[CalvinHobbes]

Originally posted by: locutus12
http://extreme.outervision.com/psucalculator.jsp <--- updated weekly, accurate as hell.

Can it calculate the number of popups? Man I got 7 just selecting a few options. No thanks.

 

[JEDIYoda]

Originally posted by: locutus12
http://extreme.outervision.com/psucalculator.jsp <--- updated weekly, accurate as hell.

None of the current PSU calculator sites are accurate at all........
That`s just the was it is!!

 

[Oyeve]

Originally posted by: JEDIYoda

None of the current PSU calculator sites are accurate at all........
That`s just the was it is!!

Very true. If I went by their calculations and utilized 75% of my system according to them I would have needed an 895w PSU!

 

[locutus12]

ooo... hmmm it used to be accurate i swear, i just did my system on it and it thinks i need 620 watts :/ when i used is 6 months back on my system it said 427 ive only added 2 hard drives :/

 

[Oyeve]

Originally posted by: locutus12
ooo... hmmm it used to be accurate i swear, i just did my system on it and it thinks i need 620 watts :/ when i used is 6 months back on my system it said 427 ive only added 2 hard drives :/

Must be some killer hard drives! 🙂