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Old 11-09-2016, 03:40 AM   #1
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Question Which Kind of PSU?

So I have ambitious plans to build my first PC since I'm not happy with the one I bought from Origin-PC. I am looking for recommendations for a PSU to power the beast I want to make! Here is what I have picked out for my future build project.

MOBO: MSi X99A GAMING PRO CARBON

CPU: Intel® Core™ i7-6950X Processor Extreme Edition
(25M Cache, up to 3.50 GHz)

GPUs: NVIDIA Quadro M6000 24GB x1
EVGA GeForce GTX 1080 8GB x2
3 Total GPUs

RAM: Corsair VENGEANCE® LED 16GB DDR4 DRAM 3200MHz C16 x8
8 Total RAM Cards

Hard Drive: WD Black 5TB Hard Disk Drive-7200 RPM SATA 6 Gb/s 128MB Cache

Heat sink: Corsair Hydro Series™ H80i v2 High Performance Liquid

PSU: ????

Any Idea's for a PSU to Power this soon to be monster? Again this is the first time i'll be building my own PC from scratch...

Still picking a case btw lol
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Old 11-09-2016, 03:46 AM   #2
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Default Re: Which Kind of PSU?

I'd use a corsair platinum 850 watt full modular PSU and a ups backup supply.
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Old 11-09-2016, 01:22 PM   #3
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Default Re: Which Kind of PSU?

Thank You For the Suggestion! Battery backup is a good idea btw! Thanks again!
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Old 11-09-2016, 07:02 PM   #4
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Default Re: Which Kind of PSU?

Id also skip the Quadro gpu unless you are building a neuro net simulation or other compute heavy task. They are not good for rendering, only for adding computational pipelines to your system.
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Old 11-15-2016, 12:50 PM   #5
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Default Re: Which Kind of PSU?

This I didn't know, thank you for the heads up on the Quadro! ( sorry for the delayed responce, busy with work and stuffz )
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Old 11-17-2016, 09:29 AM   #6
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Default Re: Which Kind of PSU?

Since you're planning for a multi GPU solution, make sure whatever PSU you get has the number of PCI-E +12v rails needed.

Take only popular brands.

If the GPU's are specially powerful, make sure the amperage is distributed well on the PCI-E rails and the total wattage for the +12v can handle the total power consumption of all the GPU's.

I suggest you try to find your exact GPU setup and share it with us to give you the bet fit, or the PSU you find.
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Old 11-17-2016, 07:54 PM   #7
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Default Re: Which Kind of PSU?

i decided to get a Corsair AX1500i
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Old 11-17-2016, 11:54 PM   #8
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Default Re: Which Kind of PSU?

That will certainly be more than enough.

Are you planning on using more than 2 GTX 1080's (now that you decided to exclude the Quadro)? If you're not, and you don't want the extra power you paid for laying around needlessly, then a 950-1000 Watt of similar quality is more than enough even to overclock the CPU to 5Ghz (if possible). Otherwise go for it. You're choice is rated 1500 Watts.

By the way, I don't see an SSD on the list. It make a huge difference for operating systems' speed and response and it's relatively considered the best performance boost/upgrade these days.
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Old 11-18-2016, 12:38 AM   #9
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Default Re: Which Kind of PSU?

omg Thank You for reminding me I needed to shop around for a SSD I been meaning to do that, it's now gonna be a Toshiba X300 6TB SSD (now a days games take so much space! ) oh and with the GPU I changed it to an EVGA GeForce GTX TITAN Z 12GB GAMING so I'll have 3 GPUs. As for the PSU better to have to much power than not enough right?
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Old 11-18-2016, 07:48 AM   #10
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Default Re: Which Kind of PSU?

As long as you can afford the electric bill.

My PSUs are always Seasonic.
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Old 11-18-2016, 08:44 AM   #11
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Default Re: Which Kind of PSU?

Close call, eh?

Not sure if games (with their crazy sizes these days, hehe) utilize the speed of SSD's especially well for the bang for the buck. So again, only if you're okay with paying more, go for it. I personally use it for the OS and page filing, and fast HDD's for the games and the rest (in a total of ~14TB here). There is also a faster variants of SSD if you're interested and willing to pay more; PCIe SSD and M.2 SSD.

Are you saying you're gonna use 2 GTX 1080's and 1 GTX Titan Z? Any specific reason for that? Cuz to my humble knowledge, they don't have a combination value. On a side note, it's old and got superseded with Titan X Pascal. 2 1080's outperform 1 Titan Z or X, but games that do not support SLI or worry you would run out of VRAM, are better off with 1 Titan Z/X. Is this what you have on mind?

As for the PSU, the AX1500i could be the only choice you actually have if you are fixed for the 3 GPU's above. The Titan X Pascal uses less power, by the way, tho it is faster (and more expensive in a way many criticize) making bringing a choice of 1200W to the discussion.

Yes, more power is better. I just thought you might be interested in saving some money that won't make a difference if payed. But of course willing to pay = why not go for it. I follow the same approach too, haha. I personally own a 1000W PSU and ~650W of it used, cuz I was willing to pay (and since I thought maybe I'd SLI in the future, which I didn't).
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Old 11-18-2016, 08:54 AM   #12
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Default Re: Which Kind of PSU?

I have a 32g SSD as a cache drive. Suits me just fine. SSDs speeds up read and write and nothing else so no impact on performance except for wait times.
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Old 11-18-2016, 08:56 AM   #13
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Default Re: Which Kind of PSU?

Quote:
Originally Posted by Celery View Post
As long as you can afford the electric bill.

My PSUs are always Seasonic.
If the high power is utilized, that is
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Old 11-18-2016, 09:08 AM   #14
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Default Re: Which Kind of PSU?

Not really. The PSU draws from the wall regardless of how much you use so the higher the wattage the more it draws.
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Old 11-18-2016, 10:33 AM   #15
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Default Re: Which Kind of PSU?

In the exact same amount as what the PSU is rated? Is that the case in sleeping mode and power saving plans too? If so, any idea what good are the power saving plans?
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Old 11-18-2016, 10:44 AM   #16
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Default Re: Which Kind of PSU?

How do you save on the AC side?

The savings is on the DC side.
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Old 11-18-2016, 10:54 AM   #17
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Default Re: Which Kind of PSU?

I see...

What's the point of saving on the DC side then if what really counts is the AC side; i.e. what affects the bill?

What about the other question:
Quote:
Originally Posted by Smart_Guy View Post
In the exact same amount as what the PSU is rated?
More or less, of course. I don't mean exact exact same amount.
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Old 11-18-2016, 11:50 AM   #18
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Default Re: Which Kind of PSU?

As to 80% efficiency you're getting 80% of the wall wattage.

As to the energy savings; that's to extend the life of the components in the PC.

As to what PSU to get; figure all the wattage of the components and add 20-30% to get total wattage.

For example, using a 1000 watt PSU to run a 350 watt system is wasting a lot of electricity and you're paying for it.

If you don't mind paying for it (or your parents are paying for it, you brat) then never mind.
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Old 11-18-2016, 02:29 PM   #19
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Default Re: Which Kind of PSU?

Got it

One more last question: why does a laptop battery drain depending on the intensity of usage and not a fixed time?

Wait, you're a mechanic, not an electrician!
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Old 11-18-2016, 02:53 PM   #20
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Default Re: Which Kind of PSU?

That's ok, I'm an electronic buff.

Beside wattage we have voltage and amperage. Volt is the speed of the electrons and the ampere is the power/capacity of the electrons.

Watt = volt x ampere

The more you use the battery the more the voltage drops and so does amperage. Ampere is the power to run things so when you lose ampere you lose capacity and power.

Just 0.5 volt drop makes the battery go dead.because the amperage is spent.
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