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Enough PSU for GTX560 Ti + 9800GT ?

post #1 of 12
Thread Starter 
Hello. I aa the newcomer to these forums.
I currently have custom rig based on Core i7 870. I also have DDR3 1600 RAM, 9800GT card at stock clocks, single HDD, single DVD burner and Corsair HX650. I plan getting a new card: MSI GTX 560 Ti Twin Frozr II. I also plan reusing my 9800GT as dedicated Physx card. Will my PSU have enough power for such a combination?
Edited by wanna_buy - 6/5/11 at 6:55am
post #2 of 12
What is the brand and wattage of your PSU?

EDIT- Nevermind I found it it was hidden! Yes that will be fine.
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post #3 of 12
you should be fine.


-dimwit-
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post #4 of 12
Thread Starter 
Quote:
Corsair HX650
As the name says itself, PSU brand is Corsair and it's 650w.
post #5 of 12
Quote:
Originally Posted by wanna_buy View Post
As the name says itself, PSU brand is Corsair and it's 650w.
Corsair make some of the best PSU, looking at one for my new build.


-dimwit-
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post #6 of 12
Thread Starter 
Yes, I know about Corsair being the best. But my concern was whether 650w was enough or not. As the reviews say, GTX 560 Ti consumes around 240w at peak and 9800GT around 110 at peak load.
I wonder when intel states TDP for their processors like 95W, does that mean that they consume only 95W at load?
post #7 of 12
650W will be plenty for those two cards.
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Taijin Kyofusho
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post #8 of 12
Quote:
Originally Posted by wanna_buy View Post
Yes, I know about Corsair being the best.
This is wrong (as "best" depends on alot of factors), but I digress. That is a very quality unit. It should run it fine.

For reference, this...

Core 2 Duo E8600 @4GHz (1.248V idle, less under load)
GeForce GTX 560 Ti (stock, very minor factory OC)
GeForce 8800GT OC (stock on my end but a factory OC)
8GB (four modules) DDR2 RAM (stock)
Sound card
Four hard disk drives
DVD+RW optical disk drive
Seven 120mm case fans

...all runs fine on a 610W PSU. I imagine your setup may have more draw with the CPU, with mine having a slight extra more with the RAM and hard disk drives, but the GPUs are the same and it should give you an idea. It runs it. I do not run it that way normally/permanently, as I have no need to have the dedicated PhysX GPU all of the time adding heat/power draw for no reason. However, I have ran it that way at times and it has worked fine.

As for TDP, well, my CPU has a 65W TDP and Evertest/Aida64 say 95W maximum, and that's for stock. I'm at stock voltage but 4GHz and, at least according to Everest/Aida64, which may not be perfectly accurate, stuff like Prime95 and it's own stability test put me ~40W-50W load for the CPU. I think CPUs are less often to hit TDP than GPUs?
post #9 of 12
Thread Starter 
As far as I can recall, Newegg was naming any Corsair branded PSU as "Voted as the best PSU manufacturer in 2010" or something like that.

I checked CPU tab in Everest and it says

Quote:
Typical Power300 W @ 2.93 GHz
So does that mean that my CPU consumes 300w at peak?
post #10 of 12
Quote:
Originally Posted by wanna_buy View Post
As far as I can recall, Newegg was naming any Corsair branded PSU as "Voted as the best PSU manufacturer in 2010" or something like that.

I checked CPU tab in Everest and it says



So does that mean that my CPU consumes 300w at peak?
The term "best" is a broad category personally corsair products are very good quality items and will always recommend them, but that doesn't make all the other PSU's of lesser quality.
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