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watts for a 9800gtx setup? - Page 2

post #11 of 21
The iGreens are fairly good PSUs. 38A is a little low but if you are running at stock speeds it would be fine. The 9800gtx is pretty efficiency and Chipp was right with the 240W figure for two of them. If you plan of OCing it would be smart to eventually find a PSU with 45A or more on the 12V rail. If you decide to get a new PSU some time make sure you get one with 4 PEG connectors. More often than not, to get 4 PEGs you need to look for a 750W PSU. Something like a Corsair tx750 or the PC P&C Silencer 750 are good choices in this range. You don't technically need 750W, but it's always better to not run with adapters. If a 750W is too expensive, a good 650W PSU with 50A (Corsair tx650, Silencer 610) would be a good fit even though you would still need adapters.
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post #12 of 21
Quote:
Originally Posted by ChrisB17 View Post
How is that possible? I googled it and it shows only 2x. Unless you mean SLI.
yeah 2 9800GTX because he is talking about 9800GTX sli duh
    
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post #13 of 21
Quote:
Originally Posted by noobdown View Post
Do you have where they explain their power consumption methodology? I always hate reading power consumption figures without knowing how they isolated it from the rest of the system. It wasn't in that article and I'm hoping that have it explained somewhere else.
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post #14 of 21
Thread Starter 
i think that i am just going to try the sli setup with the current psu, ill let you all know how it turns out
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post #15 of 21
Thread Starter 
i went to newegg.com, they have a power calculator for the most important things in your system.
http://educations.newegg.com/tool/psucalc/index.html
they don't have it completely up to date list of the right video cards

if i put:
1. two 8800 gts with a high end mob, it says i need 611
2. two 8800 gts with a regular desktop board it says i need 585

the 8800gts x1 = at full load 140
the 9800gtx x1 = at full load 168

so i think i need at least a 650... poope. should of spent that extra 25 bucks =/
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post #16 of 21
Don't give that calculator much credit. They are trying to sell you something, don't trust them to give you an honest answer. If you are going to use anything, use this one: http://extreme.outervision.com/psucalculatorlite.jsp. Either way, I trust someone with experience giving you advice over a calculator.

edit: If you want my estimate, I'd say 400W for the whole system or 350W for just the 12V rail (that is the most important number since the CPU, GPU, and HD are powered off of it) at stock. Your PSU has 456W so it will run it fairly comfortably. You'll only start to run into trouble with OCing.
Edited by shinji2k - 7/6/08 at 3:49pm
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post #17 of 21
Thread Starter 
Quote:
Originally Posted by shinji2k View Post
Don't give that calculator much credit. They are trying to sell you something, don't trust them to give you an honest answer. If you are going to use anything, use this one: http://extreme.outervision.com/psucalculatorlite.jsp. Either way, I trust someone with experience giving you advice over a calculator.

edit: If you want my estimate, I'd say 400W for the whole system or 350W for just the 12V rail (that is the most important number since the CPU, GPU, and HD are powered off of it) at stock. Your PSU has 456W so it will run it fairly comfortably. You'll only start to run into trouble with OCing.
good point
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post #18 of 21
Quote:
Originally Posted by A Russian :D View Post
yeah 2 9800GTX because he is talking about 9800GTX sli duh
You should have specified it. You made it sound like 1 card used 4x 6 pin. And do you still play Red Orchestra?
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post #19 of 21
Thread Starter 
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post #20 of 21
Yup, 600W iGreen, built by Acbel. Build quality and performance is above average. How much did you pay for it and how long have to had it?
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