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Up Topic The Rybka Lounge / Computer Chess / Is 1050 W power supply enough for an SR2 board with 12 core
- - By Bouddha (****) [ch] Date 2012-04-11 19:57
Hi all,

basic question:
Is 1050 W power supply enough for an SR2 board with 12 core OC at about 4 GHz ?
Parent - - By David Evans (***) [gb] Date 2012-04-11 20:43
yes i ran with a 1000w psu on my sr-2 no problems you are not going to hit anywhere near full load unless you are going to run three to four graphics card
Parent - - By Bouddha (****) [ch] Date 2012-04-11 21:15
Thanks !

So I can OC these 2 CPU no problems ?
regards
Parent - - By David Evans (***) [gb] Date 2012-04-11 21:26
overclock yes run water cooling run a graphics card or two etc just make sure your 1000w psu is of good quality .....................
Parent - - By Arrière Pensée (Gold) Date 2012-04-11 21:35
CORSAIR Professional Series HX1050 looks decent...
Parent - - By Vegan (****) [ca] Date 2012-04-11 23:54
I would suggest the AX1200 and this way have the highest efficiency

I have a popular page on power supplies
Parent - - By Arrière Pensée (Gold) Date 2012-04-12 00:09 Edited 2012-04-12 00:11
I looked at the AX 1200 and build quality put me off. There seems to be more reported problems with DOA's  and other quality control issues. Where as the HX model seems to be a much better build not to mention the $79 difference in price. I don't think - although I might be wrong, there would be any lacking in power usage going with the HX.
Parent - - By mocha1961 (***) [us] Date 2012-04-12 01:12
AX1200w. the best. :cool:
Parent - - By Arrière Pensée (Gold) Date 2012-04-12 06:31 Edited 2012-04-12 06:35
Over kill?!:wink: IMHO

P.S.

Unless he's running a gaming rig with 2 high performance graphic cards and 16 gigs of  Ram  all of which he intends to OC!
Parent - By Mark Eldridge (****) [gb] Date 2012-04-12 07:05
I only have one card but 24gb  of ram.
Parent - By David Evans (***) [gb] Date 2012-04-12 07:06
I was overclocking had a ati hd 6970 card also overclocked had watercooling setup etc etc could not pull moire than 700ish watts

Same psu now runs my sandybridge same setup pulling no where near getting close to 1000w
Parent - By Mark Eldridge (****) [gb] Date 2012-04-12 07:04
That's the one i have, very good it is.
Parent - - By Arrière Pensée (Gold) Date 2012-04-12 07:44 Edited 2012-04-12 08:06
I think he should just knock himself out and go for the Ultra X4 1600-Watt Modular Power Supply! :yell: (of course I'm only kidding...)

Honestly, I have no idea what an SR-2  running 2 xeon x5650's would be pulling power wise- I'll leave that to the guys here that have the experience in running the same kind of setup to make that call. It just sounded like overkill to run that much power for just chess.
Parent - - By Geomusic (*****) Date 2012-04-12 08:37
If you are going to buy an expensive mobo buy an expensive psu.
Parent - - By Arrière Pensée (Gold) Date 2012-04-12 12:51 Edited 2012-04-12 13:35
My mobo is expensive -I don't see any reason to go out and by a 1200 w psu !  Where is the reasoning behind that? I use a corsair  HX 850 - works fine!

In point of fact - the HX- "performance" is pretty much similar to the AX ! (Some even believe it performs better...).

I'm not even sure who makes these things anymore if it is Channel Well or Seasonic making Corsair!
Parent - - By Banned for Life (Gold) Date 2012-04-12 17:21
With a good supply, you want to be running at about 80% maximum load for best efficiency (which can be up to 90% on a really good switching supply, but may be 70% or less on a standard unit). Unfortunately, even good PC power supplies are pretty crappy, so the rated output may be fictitious. In any event, bigger isn't better in this area.
Parent - By Arrière Pensée (Gold) Date 2012-04-12 17:49
So there are multiple concerns-

"Although a too-large power supply will have an extra margin of safety as far as not over-loading, a larger unit is often less efficient at lower loads (under 20% of its total capability) and therefore will waste more electricity than a more appropriately sized unit."

As well hardware developers overrate the power consumption of their components to minimize support issues.
Parent - By kgburcham (***) [us] Date 2012-04-12 15:40 Edited 2012-04-12 16:01
I know you have a lot of replies, here is mine.
I took a reading with a clamp on when I was running 12 threads at 4.5gig with HT off, running Houdini 2.
It showed about 5, maybe 5.5 amps.
So 115v x 5 amps would be about 575 to 600 watts.
My power supply is 1200 watts, havent had any trouble with it, it is a BFG.
I think BFG quit selling these, maybe they are out of business now.
Of course the video cards, fans, etc, running these programs would be a minimum draw.
Up Topic The Rybka Lounge / Computer Chess / Is 1050 W power supply enough for an SR2 board with 12 core

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