Will a 650W be enough for now?

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Derico

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Dec 26, 2013
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I am sort of going to renew my entire pc. The system will consist of a 4930k, a gtx 780 and a 2400mhz ram kit. Besides, there are several case fans and a corsair h100i involved. Considering that i want to overclock the cpu, will i get into trouble with my 650W?

I was probably going to add in another gpu in the future and THEN replace the psu with a 1000W. Or should i already buy it now?
 
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AshyCFC

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I havent had the experience of owning one but briefly looking at reviews it looks like a very solid unit.

According to this calculator
http://www.extreme.outervision.com/PSUEngine

with 30% capacitor ageing 2 hard drives 4sticks of ddr3 RAM,780,I7 4930k and 4 fans you need 699W recommended with 649W minimum on the PSU, how many hard drives/fans/ram sticks do you actually have?

edit: can't find your water cooling kit so wasn't in test.

I think sadly for safeties sake you need to get a bigger PSU for this system even though yours is of a great quality right now it's not big enough.
 
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AshyCFC

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I believe so, I mean a tx750 is a strong unit.

If you find it struggles perhaps you could try just running the system at stock clock with stock cooler(i don't know how good/bad it is) just in the mean time until you buy a bigger unit with the next GPU upgrade?
 
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Derico

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Id really like to overclock the cpu, though. Perhaps i should future-proof the build right away with a 1000-1200W psu? What happens energy consumption-wise when i have an overkill strong psu?
 
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Diwiak

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if you are thinking of second GPU in less than year, take some decent branded 1000W PSU-its taking as much power as it needs, so no problem with this, u are ready for any OC, as well youll dont have hassle with rearrangeing cables

if next GPU will be in far future, I wont bother with this, because current PSU will be aged enough, and youll do better swap it for new.

branded 750W psu will be enough for some overclock too
 
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Derico

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You know what, i think ill take a 1000w psu then. I just remembered why i still have this wrapped up tx750 here - it broke and got returned. I bought the current bequiet 650w while i was waiting for corsair to replace it.

What psu would you take. Bequiet dark power pro 1000w or enermax platimax 1000w?
 
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AshyCFC

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I can't comment on either of them, I've only used seasonic,corsair and xfx PSU's HOWEVER if you were happy with your current bequiet dark pro 650w i don't see why the 1000w version would hurt> good to stick with brands you trust in my opinion AND you get a 5 year warranty which is great.

here's a review from a website i trust

bequiet dark power pro: http://www.techpowerup.com/reviews/beQuiet/DarkPowerProP10_1000W/9.html
 
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Derico

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They are both german companies i think. Both considered to be very high-class. I think that enermax has been around for a bit longer and is supposed to be THE psu manufacturer (in europe at least)
 
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Derico

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Oh, okay them ;)
I love the list of features on the platimax. It has oc-features and is aupposed to have a savy performance under 20-100 percent load. However, and this is really bugging me, the cables seem to be a little too short (according to an amazon review) and are also non-modular unlike bequiet psu's. I love that bequiet lets you only plug in the power cables that you need.

 
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AshyCFC

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The platimax is modular? check the company website. http://www.enermax.com/home.php?fn=eng/product_a1_1_1&lv0=1&lv1=52&no=184

it may be modular or semi-modular though (semi modular means you cannot remove the ATX 24pin(main cable that goes into motherboard but others can be)

as for the cables, is your case particularly large?

the images on this page of the review show that it is semi modular and you can see the cable length of each cable but all range from 19" to 24" so 48cm to 60cm each > http://www.pcper.com/reviews/Cases-and-Cooling/Enermax-Platimax-1000W-Power-Supply-Review/Detailed-Look
 
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Derico

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You are right! That changes everything. Semi-modular is totally ok with me. I have a corsair graühite 600t.
 
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Derico

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I did some more research on both psu's and i think im going to play it safe and take the dark power pro p10 1000w. There are just more positive reviews on this one. 1000w would definately cover lets say 2x gtx 780 ti and cpu overclocking?
Dont each require like 600?



What do you mean?
 
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Derico

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Thanks, mate. Your help is much appreciated. Just to be safe - 1000w will be enough for a worst-case-scenario of 2 big gpu's and an overclocked cpu?
 
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AshyCFC

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Depends on what voltage the CPU is overclocked to, with 2 780's 2 hard drives, 1 SSD 4high performance fans 1pci-e card 3USB devices and 4 RAM DDR3 it was calculated at 896w (Processor at stock with the corsair H80 included)


did it with the same settings as above but CPU oced to 4.2ghz and 937W was result.
 
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