Is my power supply too much?

[Qwright10]

My goal PC is:

Intel Core i7-8700K

Asus Prime Z270-AR

7200K RPM HDD

Seagate 5TB FireCuda

2 x AMD RX 580 or MSI GeForce GTX 1070 or ASUS GeForce GTX 1070 Ti

A couple LED light strips and cold cathode case lights

3-4 x RGB or White LED 120mm Fans 

 

The PSU I was looking at is the Corsair HX850i, which is an 850W PSU.

I wanted to know if the efficiency isn't worth the price, if the wattage is

more than I need, or if the PSU is too "advanced" or "premium" / more

than I need.

[Stefan Payne]

Get the 750W version instead, that should be more than enough.

 

For a dual GPU rig, its OK, though multiple GPU suck for gaming these days because it doesn't even work with many/most games (Like Wolfenstein New Colossus)...

[Damascus]

Yeah, I'd pick up this guy, afaik it's the newest version

 

https://pcpartpicker.com/product/LkM323/corsair-hx-platinum-750w-80-platinum-certified-fully-modular-atx-power-supply-cp-9020137-na

[Qwright10]

12 minutes ago, Stefan Payne said:

For a dual GPU rig, its OK, though multiple GPU suck for gaming these days because it doesn't even work with many/most game s(Like Wolfenstein New Colossus)...

1

So would you recommend the 1070 or 1070 ti instead of a Crossfire setup?

[NotTheRelaxngEnd]

1 hour ago, Qwright10 said:

My goal PC is:

Intel Core i7-8700K

Asus Prime Z270-AR

7200K RPM HDD

Seagate 5TB FireCuda

2 x AMD RX 580 or MSI GeForce GTX 1070 or ASUS GeForce GTX 1070 Ti

A couple LED light strips and cold cathode case lights

3-4 x RGB or White LED 120mm Fans 

 

The PSU I was looking at is the Corsair HX850i, which is an 850W PSU.

I wanted to know if the efficiency isn't worth the price, if the wattage is

more than I need, or if the PSU is too "advanced" or "premium" / more

than I need.

what do you want this pc for, if your primary goal is gaming, dont use sli or crossfire, very few games suppoetrt it, so its better if you instead gofr a 1080 ti,also i would reccomenda 750w psu for ugrading,also if it is not for gaming, then go for itand get stilla 750w

[STRMfrmXMN]

1 hour ago, Qwright10 said:

My goal PC is:

Intel Core i7-8700K

Asus Prime Z270-AR

7200K RPM HDD

Seagate 5TB FireCuda

2 x AMD RX 580 or MSI GeForce GTX 1070 or ASUS GeForce GTX 1070 Ti

A couple LED light strips and cold cathode case lights

3-4 x RGB or White LED 120mm Fans 

 

The PSU I was looking at is the Corsair HX850i, which is an 850W PSU.

I wanted to know if the efficiency isn't worth the price, if the wattage is

more than I need, or if the PSU is too "advanced" or "premium" / more

than I need.

You're getting an SSD, right?

 

Anyways, for a single 1080 or 70 ti, you're fine on a 550W PSU. A Corsair RM550x would be a way better way to spend your money, especially if you weren't planning on getting an SSD before, because now you definitely can afford one.

[NotTheRelaxngEnd]

 

6 minutes ago, NotTheRelaxngEnd said:

what do you want this pc for, if your primary goal is gaming, dont use sli or crossfire, very few games suppoetrt it, so its better if you instead gofr a 1080 ti,also i would reccomenda 750w psu for ugrading,also if it is not for gaming, then go for itand get stilla 750w

or get a 600 watt  psu and you get some extra cash for an ssd andfor the 1080ti

[Stefan Payne]

3 hours ago, Qwright10 said:

So would you recommend the 1070 or 1070 ti instead of a Crossfire setup?

Or maybe a VEGA, yes.

 

As for Power:
You're fine with 550W, 650W is only for Highest End system with an LGA20xx or AMD Threadripper. For your Desktop/Mobile its a waste.

 

Get other things instead like a good SSD.

[Qwright10]

10 hours ago, NotTheRelaxngEnd said:

what do you want this pc for, if your primary goal is gaming, dont use sli or crossfire, very few games suppoetrt it, so its better if you instead gofr a 1080 ti,also i would reccomenda 750w psu for ugrading,also if it is not for gaming, then go for itand get stilla 750w

I still haven't completely decided on the graphics card, so the 1080 ti might be an option, but I might not have enough money. 

[seon123]

15 minutes ago, Qwright10 said:

I still haven't completely decided on the graphics card, so the 1080 ti might be an option, but I might not have enough money. 

550W is plenty for an overclocked 1080 Ti system, don't bother getting a silly high wattage PSU. 

[i_got_laid_by_a_dragoness]

12 hours ago, Qwright10 said:

My goal PC is:

Intel Core i7-8700K

Asus Prime Z270-AR

7200K RPM HDD

Seagate 5TB FireCuda

2 x AMD RX 580 or MSI GeForce GTX 1070 or ASUS GeForce GTX 1070 Ti

A couple LED light strips and cold cathode case lights

3-4 x RGB or White LED 120mm Fans 

 

The PSU I was looking at is the Corsair HX850i, which is an 850W PSU.

I wanted to know if the efficiency isn't worth the price, if the wattage is

more than I need, or if the PSU is too "advanced" or "premium" / more

than I need.

I've got a Corsair CX750M, does the job very well, and I only use around 450W under load. Stays quiet and most PSUs have greater efficiency under 50-75% load anyway.

[seon123]

2 minutes ago, i_got_laid_by_a_dragoness said:

I've got a Corsair CX750M, does the job very well, and I only use around 450W under load. Stays quiet and most PSUs have greater efficiency under 50-75% load anyway.

Recommending a budget silly high wattage PSU doesn't make much sense

[i_got_laid_by_a_dragoness]

48 minutes ago, seon123 said:

Recommending a budget silly high wattage PSU doesn't make much sense

$75 isn't exactly budget. The CX550 is a $35 PSU and is non modular. That's budget. And 750W is not "silly high" either. Someone should throw a dictionary at your face.

[seon123]

1 hour ago, i_got_laid_by_a_dragoness said:

$75 isn't exactly budget. The CX550 is a $35 PSU and is non modular. That's budget. And 750W is not "silly high" either. Someone should throw a dictionary at your face.

450W is enough for a 1080 Ti system. What do you think 300W more is? Especially since multi GPU systems make no sense anyway. 

The CX series is a budget PSU, no matter how you think of it. For a 750W PSU, it is a budget unit. 

Someone should teach you not to use words you don't understand. And maybe throw a book at your face too. Maybe one with simpler words. 

[r2724r16]

15 hours ago, Qwright10 said:

7200K RPM HDD

woahhh. That's one fast hard drive. 

[i_got_laid_by_a_dragoness]

On 31/03/2018 at 7:33 PM, seon123 said:

Someone should teach you not to use words you don't understand. And maybe throw a book at your face too. Maybe one with simpler words.

The CX series is not budget. It is "consumer grade" - which is not synonymous with "budget". Budget power supplies are inexpensive and low quality, such as Apevia and VivoTek power supplies. Corsair has a standard for which they manufacture products. My Corsair CX600 can maintain 800W output for extended periods of time, something a "budget" Apevia branded 800W power supply could never do to save their miserable existence. 

 

A quality 305W Dell/HIPRO power supply is able to maintain well over its specified power limit, say around 500W, without dips or changes in voltage on the 12, 5, and 3v rails. Yet they are branded as crap simply for being OEM power supplies.

Edited April 2, 2018 by Whiskers

[seon123]

10 minutes ago, i_got_laid_by_a_dragoness said:

My Corsair CX600 can maintain 800W output for extended periods of time

@jonnyGURU Is this true?

[i_got_laid_by_a_dragoness]

4 hours ago, seon123 said:

@jonnyGURU Is this true?

I'll prove it when I get home

[Stefan Payne]

3 hours ago, seon123 said:

@jonnyGURU Is this true?

with a shitty Powermeter that adds the Power Factor to the consumption, probably.

Otherwise not so much...

[seon123]

12 minutes ago, Stefan Payne said:

with a shitty Powermeter that adds the Power Factor to the consumption, probably.

Otherwise not so much...

He said output, not input, though. 

[Qwright10]

12 minutes ago, Stefan Payne said:

with a shitty Powermeter that adds the Power Factor to the consumption, probably.

Otherwise not so much...

Or he has some kind of Quantum Field Generator that injects current into the microparticles of the space-time continuum. It's a feasible theory capable of destroying the "motion" or "movement" of time and space, creating an infinite number of universes where we only use Mini-ITX motherboards and Intel Core 2 duos. This universal punishment of generation a quantum mechanics paradox exists only in our universe. The quantum energy field causes many beginners to become confused and misled like I am with your "I can make energy from nothing" claim. The field enables ordinary CPUs the ability to create heat or subtract heat under load. All in all, this quantum field you have created around your Electro-Harmonix 9V battery, or so-called power supply, defies the third law of thermodynamics, and in fact, cools the space-time continuum to absolute zero. Actually less than zero, less than your knowledge of power supplies.

[Qwright10]

4 minutes ago, Qwright10 said:

Or he has some kind of Quantum Field Generator that injects current into the microparticles of the space-time continuum. It's a feasible theory capable of destroying the "motion" or "movement" of time and space, creating an infinite number of universes where we only use Mini-ITX motherboards and Intel Core 2 duos. This universal punishment of generation a quantum mechanics paradox exists only in our universe. The quantum energy field causes many beginners to become confused and misled like I am with your "I can make energy from nothing" claim. The field enables ordinary CPUs the ability to create heat or subtract heat under load. All in all, this quantum field you have created around your Electro-Harmonix 9V battery, or so-called power supply, defies the third law of thermodynamics, and in fact, cools the space-time continuum to absolute zero. Actually less than zero, less than your knowledge of power supplies.

I might call that a roast, but the only thing he'll be roasting is his McDonalds hamburger on his totally realistic PSU.

[i_got_laid_by_a_dragoness]

8 minutes ago, Qwright10 said:

Or he has some kind of Quantum Field Generator that injects current into the microparticles of the space-time continuum. It's a feasible theory capable of destroying the "motion" or "movement" of time and space, creating an infinite number of universes where we only use Mini-ITX motherboards and Intel Core 2 duos. This universal punishment of generation a quantum mechanics paradox exists only in our universe. The quantum energy field causes many beginners to become confused and misled like I am with your "I can make energy from nothing" claim. The field enables ordinary CPUs the ability to create heat or subtract heat under load. All in all, this quantum field you have created around your Electro-Harmonix 9V battery, or so-called power supply, defies the third law of thermodynamics, and in fact, cools the space-time continuum to absolute zero. Actually less than zero, less than your knowledge of power supplies.

You sound like someone I know. Do you live in Massachusetts?

[Qwright10]

1 minute ago, i_got_laid_by_a_dragoness said:

You sound like someone I know. Do you live in Massachusetts?

No, Washington

[Guest]

6 hours ago, i_got_laid_by_a_dragoness said:

My Corsair CX600 can maintain 800W output for extended periods of time,

 

6 hours ago, seon123 said:

@jonnyGURU Is this true?

Maybe with LN2.  

 

Not sure where he's measuring 800W.  DC wattage across multiple outputs with an ever varying, dynamic load is damn near impossible to accurately measure.  It can be done, but you need a lot of expensive equpiment (clamping ammeters on each output, data logging multimeters, etc.)  I'm guessing he means 800W from the wall.