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Can you have TOO MUCH power from your PSU?

#11zerodefectPosted 4/26/2014 6:05:27 AM
urtv posted...
x Shadow posted...
PSUs have max efficiency at about half their rated capacity. Also not needing more than 750 for sli is false. At pc part picker my 780 sli setup is rated at 788


http://pcpartpicker.com/p/3yM32

help me out here.still need 7 watt to break 750 even with 780 ti sli


You need help to add a storage drive? Video cards aren't the only parts that need power.
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i5 3570k@4.7GHz, Antec Kulher H2O 920, SLI EVGA GTX670's, GIGABYTE GA-Z77X-UD3H, 2x4GB Kingston HyperX Genesis, XFX Pro750W Core PSU
#12ShubPosted 4/26/2014 6:43:33 AM
How about different units for you to consider? Corsair's TXM line is usually overpriced and not that great anyway.

http://pcpartpicker.com/part/seasonic-power-supply-ss750am
http://pcpartpicker.com/part/evga-power-supply-220g20750xr
http://pcpartpicker.com/part/xfx-power-supply-p1750bbefx

All three are higher quality than a Corsair TX750M, and the EVGA and XFX units are better than that Seasonic.
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-What is best in life?
-To crush your enemies, see them driven before you, and to hear the lamentation of the women.
#13LordSeiferPosted 4/26/2014 6:45:16 AM(edited)
You need help to add a storage drive? Video cards aren't the only parts that need power.

he has both a harddrive and an SSD already in there
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^ this
#14ShubPosted 4/26/2014 6:49:56 AM
On the topic of 780 Ti SLI power consumption...
http://www.guru3d.com/articles_pages/gtx_780_ti_sli_geforce_review,4.html
750W is fine unless you're overclocking and overvolting the cards.
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-What is best in life?
-To crush your enemies, see them driven before you, and to hear the lamentation of the women.
#15AkinitPosted 4/26/2014 7:17:34 AM
x Shadow posted...
PSUs have max efficiency at about half their rated capacity. Also not needing more than 750 for sli is false. At pc part picker my 780 sli setup is rated at 788


Trusting PCpartpicker for wattage ratings...
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Currently playing: Stuff
I'm So Meta, Even This Acronym
#16RickVincePosted 4/26/2014 7:35:36 AM
I don't know much about PCs but I'm building one for the first time and I just got a "Rosewill Hive 650W 80+ Bronze Certified Semi Modular ATX".

I'm going to use it with a i5-4670k and a GTX 770.

Is it a good brand? Should I have gotten something different, bigger or smaller?

I appreciate any help. Thank you.
#17ShubPosted 4/26/2014 7:38:45 AM(edited)
Rosewill used to be all bad, and they still have bad units on the market, but the Hive units are fine. Their Capstone, Fortress, Tachyon, Lightning and SilentNight lines are good, too. A Hive 650W is nearly twice as much power as your system needs, so you're fine.
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-What is best in life?
-To crush your enemies, see them driven before you, and to hear the lamentation of the women.
#18RickVincePosted 4/26/2014 7:54:12 AM
Really? Thank you. That's a load off my mind.
#19x ShadowPosted 4/26/2014 2:20:00 PM
Akinit posted...
x Shadow posted...
PSUs have max efficiency at about half their rated capacity. Also not needing more than 750 for sli is false. At pc part picker my 780 sli setup is rated at 788


Trusting PCpartpicker for wattage ratings...


And who am I supposed to trust? You? The guy that just came in and started discrediting a fairly sound system with no evidential backing?

https://www.google.com/search?q=pc+parts+picker+wattage+site:pcpartpicker.com&client=firefox&hs=iJW&rls=org.mozilla:en-US:unofficial

Here's a wakeup call. In various topics people have repeatedly asked the same question, and the answer is always that it's fairly accurate. I would rather trust it than some system where you have to manually put in meta-components (ie generic components that are meant to simulate your system under load) rather than the actual components used in the build. They put quite a bit of work into that, and it is accurate.
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THIS TABLE... THIS TABLE!!~~! - Someone from an anime. Tables are very useful, indeed.
Almost orgasmically so.
#20x ShadowPosted 4/26/2014 2:29:38 PM
And this is my said build:
https://pcpartpicker.com/user/xshadowinxbc/saved/4ovl

This is an older version of it that didn't have a few of the parts I actually had in there on the list:
https://pcpartpicker.com/p/1VTWY

As you can see PCP takes into account many parts' wattage you might not think about when coming to the rating. I personally would not have settled for 750W for even the second parts list I linked, because that's way too little headroom for overclocking, and I'm basically running the PSU ragged.
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THIS TABLE... THIS TABLE!!~~! - Someone from an anime. Tables are very useful, indeed.
Almost orgasmically so.