are these power calculations correct?

[Fullmetal Chocobo]

This machine will be started in a week. Parts to get it operational will be first, and then RAID and hard drives will be added as time goes by.

__________load____PSU @ 50%___PSU @ 70%_____PSU @ 90%
fans*_____78w_____156w_________110.76w________86.58w
H2O______24w_____48w__________34.08w_________26.64w
system____175w____350w_________248.5w_________194.25w
CPUs_____160w____320w_________227.2w_________177.6w
25 hds____230w____460w_________326.6w_________255.3w
total______507w____1014w________719.94w________562.77w

Components
CPU: 2 x Intel Xeon E5405
mobo: Supermicro X7DCL-I
RAM: 6 x Kingston 2gb PC2-667 ECC
RAID: 2 x Areca ARC-1230
HD: 24 x Western Digital 500gb RE2
fans: 8 x 92mm Akasa Amber; 5 x 120mm Akasa Amber
water cooling: Swiftech MCP665 pump
video: onboard

I'm looking at getting the Ultra X3 1kw PSU or Corsair HX1000, and I'd like to keep it in the 50-70% load range. This machine will be a file server and CPU usage will be at a constant 100% due to crunching Distributed Computing projects. Also (*), fan power usage was estimated as I couldn't find the actual power specs on the Akasa Amber fans.

 

[mpilchfamily]

You have already been to the thread that has your answer.
http://forums.anandtech.com/me...=2188478&enterthread=y

But with a server grade system like that you'll need a server grade PSU. Most any of the top quality 1K or higher PSUs is what you'll need.

 

[Fullmetal Chocobo]

Originally posted by: mpilchfamily
You have already been to the thread that has your answer.
http://forums.anandtech.com/me...=2188478&enterthread=y

What gave you the idea that I was using a PSU calculator? I have been to that thread, and it virtually has nothing to do with this. I'm checking my numbers as I have calculated from TDP on the items listed. I know there are many that know more about this than I, so I figured I would see if these numbers looked right.

 

[tomoyo]

That is some crazy system. The only thing I think is majorly off would be the Hard Drives wattage. If it's properly doing a staggered start, it would be fine, however if all the drives started at once, it would consume probably 15w+ per drive. This is truly one of the few systems I'd call a 1000W+ one. And obviously nowhere near off the shelf

Oh and supposedly the 120mm Akasa Amber is .18 amps from one thing I read. I'd verify more closely with your actualy fans. But that would mean they probably only take up about 30 watts at most.