Recommendations on PSU for new build.

[UsandThem]

I always see these guys saying:"quality 550 is all you need" yeah whatever.
750-1000 quality is where you need to be.That's my opinion.
That's for ONE decent video card.
Any more and you need to step it up or do some green to black shorting with an extra PSU

I'll just leave this for your reading pleasure. Recommended power supply wattage for a GTX 1080: 500w.

http://www.geforce.com/hardware/10series/geforce-gtx-1080

Are there some cards that need a larger power supply? Yes. But saying that people need, or should buy a 750w - 1000w is not accurate.

http://www.realhardtechx.com/index_archivos/Page362.htm

 

[Concerned Citizen]

Whatever man.I live in the real world.You don't want the black screen and hard reboot;believe me.

 

[UsandThem]

Whatever man.I live in the real world.You don't want the black screen and hard reboot;believe me.

Did you even take the time to read what I linked to? And unless I'm really confused, I also believe I live in the real world.

 

[Concerned Citizen]

Did you even take the time to read what I linked to? And unless I'm really confused, I also believe I live in the real world.

Sure I did.That's not exactly how it goes down,though.
Is your other name Shilka?
Lemme tell you.Get a bigger PSU.750-1k is OK for a big GPU.
More than that and aim higher.1200w for 2, 1600 for 3,multiple PSUs for more.
That's how it is.

 

[UsandThem]

Sure I did.That's not exactly how it goes down,though.
Is your other name Shilka?
Lemme tell you.Get a bigger PSU.750-1k is OK for a big GPU.
More than that and aim higher.1200w for 2, 1600 for 3,multiple PSUs for more.
That's how it is.

I have no idea what you are talking about in the first part of what you just said, and it's your choice what power supply you want for your system. It's called an opinion. And unless you have a credible link showing otherwise, that's the way it will stay.

http://www.evga.com/Products/Product.aspx?pn=08G-P4-6286-KR

Total power draw: 215w Recommended PSU: 500w+

 

[Concerned Citizen]

I have no idea what you are talking about in the first part of what you just said, and it's your choice what power supply you want for your system. It's called an opinion. And unless you have a credible link showing otherwise, that's the way it will stay.

http://www.evga.com/Products/Product.aspx?pn=08G-P4-6286-KR

Total power draw: 215w Recommended PSU: 500w+

Better to have more than you need than not enough.By your metric.My Diablotek 400w should be fine,right?
I can booger 6-pins to the molexes
I don't think that's a good idea.
Maybe for h61/h81 with iGPU;Not for a dedicated GPU.

 

[UsandThem]

If a person calculates what they need based on their hardware, and adds some for to account for the efficiency loss at the wall, and a little extra for 'just in case', it's pretty easy to ensure you have enough.

 

[MongGrel]

I have no idea what you are talking about in the first part of what you just said, and it's your choice what power supply you want for your system. It's called an opinion. And unless you have a credible link showing otherwise, that's the way it will stay.

http://www.evga.com/Products/Product.aspx?pn=08G-P4-6286-KR

Total power draw: 215w Recommended PSU: 500w+

It's an actual tech area, so I won't say a lot.

It's his opinion and he's been throwing them out all over the forums.

He's entitled to one I guess.

 

[Concerned Citizen]

i suppose so.However if you;re running a high end rig with a decent GPU;I say 700W +

 

[Concerned Citizen]

It's an actual tech area, so I won't say a lot.

It's his opinion and he's been throwing them out all over the forums.

He's entitled to one I guess.

I guess you don't know nothin' 'bout dat dere.
Yet I do.
Get off my Johnson.I don't like men on my Johnson.
You been harrasing me too much


This is not appropriate for a tech forum
Markfw900

 

[MongGrel]

What was that ?

Other than a typo.

 

[Concerned Citizen]

Get a life,loser?
I'm sure you've heard that before.


No insulting other members
This is not appropriate for a tech forum
Markfw900

 

[Puffnstuff]

I second the corsair unit. They've got great CS and the last time they replaced a ps for me, hx1000, they sent me a brand new unit.

 

[DrMrLordX]

Hand-waving and generalizations have no value in determining what wattage PSU should be run. To determine your PSU wattage, first determine approximately how much DC power you will use with your system. Then look at various PSU reviews, and narrow down ON QUALITY what you should and should not even consider running. Then look at the PSU efficiency curve and try to find a quality PSU that reaches peak efficiency at or near your chosen wattage range. Buy that one. Examples:

http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=361

vs.

http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=446

The first link shows you the hot testing for the 1000w EVGA P2. It hits maximum efficiency at around 400-500W, though it maintains efficiency well up to ~800W, so a 500-800W range is certainly safe for that PSU from an efficiency PoV.

The second link shows you the hot testing for the 650W EVGA P2. It hits maximum efficiency at around 330W, though it maintains efficiency fairly well up through its entire range.

Both PSUs could (and do) perform some better at lower temperatures. I only chose to show the PSUs under maximum duress.

The point being that if you know you have a 300W DC system load, there's no sane reason why you should buy the 1000W P2 over the 650W P2. Sure the 1000W P2 does pretty well efficiency-wise down at that level, but the 650W is a smidgen better for a 300W load. You wind up burning more power at the socket with the bigger PSU. You will see the same effect with PSUs from other manufacturers, it isn't just EVGA/SuperFlower. You may see worse.

When considering a load of 215W, I would definitely NOT recommend a 1000W power supply! The EVGA P2 unit shows efficiency dropping down near 90% at that level.

For point-of-reference here is JG's review of the Corsair RM 750x (they have not reviewed the 650x to my knowledge):

http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=452

Here is a thread about a Tom's review of the 650x from the JG forums:

http://www.jonnyguru.com/forums/showthread.php?t=13453

For point-of-reference I'm not all that impressed with the 750x. It never eclipses 90.5% efficiency, making it inferior to the EVGA 750W P2. It IS cheaper, though, and it looks very stable, so if you can get it for $20 less and you don't mind the hit in efficiency, go for it. It looks like it stays close to 90% in the 200-550W range giving it a lot of flexibility.

If it's a choice between the 650W P2 and RM750x I would probably get the P2, so long as total DC load stayed at 500W or less. They cost about the same, and the P2 is more efficient.

 

[VirtualLarry]

.My Diablotek 400w should be fine,right?

That might explain why you think any CPU newer than Ivy Bridge is unstable. Just sayin'.

 

[UsandThem]

That might explain why you think any CPU newer than Ivy Bridge is unstable. Just sayin'.

I didn't notice he signed up and posted 212 comments in less than a day, or I wouldn't have even taken the bait.

I just saw senior member, and I didn't notice his join date until he started making personal attacks towards MongGrel.

 

[whm1974]

From reading about these things, I think a a GQ 550W will do just fine for a Broadwell-E and single GTX 1080 setup. You will only need more wattage if you are using SLI/CF and/or multiple CPUs.