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[sfe] 24 Core, 48GB RAM runs on 400W - Page 4

post #31 of 40
But would it really be worth the additional power consumption?
    
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post #32 of 40
If he got two 1000watt PSU's he'd be able to overclock them and add a lot more motherboards to it.
    
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post #33 of 40
Quote:
Originally Posted by Nostrano View Post
But would it really be worth the additional power consumption?
Most likely....

*Current power consumption is 800w.

*Let's say he did a mild overclock on the Q6600 of 2.4GHz to 3GHz.

*We'll say the increase power consumption from each quad is 50w so that means a 300w increase or 1100w for the entire system.

The cluster was able to render 24 frames in 4k format in 64 min. With the 600MHz increase, it could the same amount of work in about 52 min.

Therefore, it was costing: 64min/60 * 800w/1000 = .85kW/hr
Overclocked, it would cost: 52min/60 *1100/1000 = .95kW/hr

Assuming the cost of a kW/hr is $.10.

Therefore, he is spending 1 cent more to save 10-12 mins.

(I hope my math is right! )



Quote:
Originally Posted by Brutuz View Post
If he got two 1000watt PSU's he'd be able to overclock them and add a lot more motherboards to it.
He would have to be wary of the 3.3v and 5v rail draw with all that memory and those HDs. Newer PSUs provide more power to the +12v rail.
Edited by DuckieHo - 6/11/08 at 9:29am
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post #34 of 40
Quote:
Originally Posted by The_Rocker View Post
How about no.

He has a better use for it that wasting electricity!
A better use than FIGHTING DISEASE? hmm... selfish personal video encoding.... or fighting for a cure? which sounds like 'the best use' ?

he may not fold with it.... but it would be theoretically the best thing he could do with it...
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post #35 of 40
Quote:
Originally Posted by dualhYbrid View Post
A better use than FIGHTING DISEASE? hmm... selfish personal video encoding.... or fighting for a cure? which sounds like 'the best use' ?

he may not fold with it.... but it would be theoretically the best thing he could do with it...
Actually... that's quite subjective. Folding is absolutely NOT "theoretically the best thing he could do with it".

Some better uses:
* doing rendering, make $1M, and donating to a cause.
* physics research leading to a breakthough to discover dark matter
* weather prediction to help save people and crops
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post #36 of 40
Not to rain on anybodies parade..

But when was the last time F@H actually accomplished something..
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post #37 of 40
I also think he should have used 2-3 giant PSUs instead of 6 small ones.

Remember, each PSU gives off a certain amount of wasted energy as heat due to inefficiency - meaning extra power used just for having more PSUs. If he used two 1kW PSUs and spliced the connectors, it would take less power for everything to run.
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post #38 of 40
400w at idle?

No way that thing uses 400w under load. A quad with 2GB of RAM, stock clocks/voltage burns up about 125w at the wall.
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post #39 of 40
Quote:
Originally Posted by Mootsfox View Post
400w at idle?

No way that thing uses 400w under load. A quad with 2GB of RAM, stock clocks/voltage burns up about 125w at the wall.

It's 800w.
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post #40 of 40
So only Linux can be ran on this? No other OS?
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