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Old Apr 13, 2011, 01:46 PM   #1
desantii
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450W G5 Power SUpply

Can I use teh 450W supply in a dual 1.8? I will not be adding any extra cards aside form the video card. I know it specs a 600W one but just checking as I will not use any extra cards

thanks
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Old Apr 13, 2011, 02:04 PM   #2
Behemecoatyl
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No. The CPUs alone can pull 400watts.
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Old Apr 13, 2011, 02:47 PM   #3
Transporteur
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Originally Posted by Behemecoatyl View Post
No. The CPUs alone can pull 400watts.
400W? Where the heck did you get that from?

1.8GHz PowerPC 970 consumes 55W! Check the official IBM data sheet: http://datasheets.chipdb.org/IBM/Pow...erPC-970MP.pdf
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Old Apr 13, 2011, 02:56 PM   #4
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IBM's data has nothing in common with Apple's applications. All of Apple's G5 CPUs are overclocked beyond stock specs, this is especially true of every G5 over 2.0ghz.
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Old Apr 13, 2011, 02:59 PM   #5
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http://docs.info.apple.com/article.html?artnum=32486

Power Consumption
Idle 140w
Max 604w
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Old Apr 13, 2011, 03:01 PM   #6
Transporteur
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Quote:
Originally Posted by Behemecoatyl View Post
IBM's data has nothing in common with Apple's applications. All of Apple's G5 CPUs are overclocked beyond stock specs, this is especially true of every G5 over 2.0ghz.
1.8GHz is stock spec, no need to over-clock anything with this machine.
And even with over-clocking, 200W per CPU sounds completely unreasonable even for the 2.7GHz units.

I don't say it is not possible or that you're lying, I'd just like to see any reference for that.

Edit: There we go. Holy crap, that is pure insanity. I had a 2GHz dual myself and I never noticed that it was that bad!
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Old Apr 13, 2011, 03:03 PM   #7
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Quote:
Originally Posted by Behemecoatyl View Post
http://docs.info.apple.com/article.html?artnum=32486

Power Consumption
Idle 140w
Max 604w
The power consumption is for the entire computer. The processors still only pull 55W per, as Transporteur showed.
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Old Apr 13, 2011, 03:06 PM   #8
Transporteur
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Originally Posted by superfula View Post
The power consumption is for the entire computer. The processors still only pull 55W per, as Transporteur showed.
Can't be. If idle is 140 and 600 with maximum load, the CPUs alone can't only consume 110W. The 350 remaining watts can not be consumed by the ATI 9600. RAM, logic board and hard drives pretty much consume the same for load and idle, give or take.
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Old Apr 13, 2011, 03:12 PM   #9
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Incorrect. Clearly you lack basic knowledge of logicboard operation so there is no point continuing to argue with you.
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Old Apr 13, 2011, 03:19 PM   #10
Transporteur
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Incorrect. Clearly you lack basic knowledge of logicboard operation so there is no point continuing to argue with you.
Why exactly do I smell 300D again? Came back for another ban?
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Old Apr 13, 2011, 03:22 PM   #11
desantii
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Well I for one decided to hunt for a 600W one I guess. ANyone have one?
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Last edited by desantii; Apr 13, 2011 at 03:31 PM.
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Old Apr 13, 2011, 04:28 PM   #12
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Smart move.
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Old Apr 14, 2011, 01:21 AM   #13
666sheep
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Quote:
Originally Posted by desantii View Post
Can I use teh 450W supply in a dual 1.8? I will not be adding any extra cards aside form the video card
450W will work fine. I've used 450W in 1.8, 2.0 and 2.3 Duals. Only avoid 6800 Ultra DDL. Any other graphics card will be OK.
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