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How much power I need

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I´d go with a 500w minimum, it´s more than enough with a 450w, but for future expansion a 500w will do you better in my opinion

I´d go with a 500w minimum, it´s more than enough with a 450w, but for future expansion a 500w will do you better in my opinion

Case: Corsair Graphite 760T || PSU: Corsair RM650i || Mobo: Asus RoG Strix Z270E || CPU: Intel i5-7600K @4.8GHz || Cooler: Corsair H110i v2 || RAM: Corsair Vengeance DDR4 3200MHz 16GB White LED || GPU: MSI GTX 1070 8GB GAMING X || SSD: Samsung 850 Evo 250GB, Samsung 860 Evo 500GB, Samsung MZ1280 M.2 128GB || HDD: Seagate Barracuda 1TB

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Just now, <Aleks> said:

According to PCPartsPicker, you need 310W so a 400W PSU will be fine.

No. You never want to have your peak power consumption only 50W or so away from PSU's limit. I would actually pick a 500W for your build since PSU's are far more efficient in 60-70% load.

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20 minutes ago, Unknown4 said:

This is my config https://pcpartpicker.com/list/nTGJvV and I want to overclock as well to 3.9ghz tell me how much watts do need 

Also, you probably won't be reaching 3.9ghz stable on that motherboard. You're really squeezing it for that gtx 1070 aren't you?

One more advice. Don't cheap out on PSU because it's the heart of your system. Make the power delivery bad, bye bye overclocks. CPU isn't going to overclock itself.

A good board and PSU is crucial to achieve stable and high overclocks on CPU and GPU.

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25 minutes ago, Light-Yagami said:

No. You never want to have your peak power consumption only 50W or so away from PSU's limit. I would actually pick a 500W for your build

Why should PSU  manufacturers rate their PSU for 24/7 usage, sometimes even at rated temperature?!

Like Bitfenix does with their Whisper M and Formula series. 

 

Good quality PSU are rated for continous power!

 

25 minutes ago, Light-Yagami said:

since PSU's are far more efficient in 60-70% load.

That's just false information!


Look:

http://www.tweakpc.de/hardware/tests/netzteile/seasonic_focus_gold/s03.php

http://www.tweakpc.de/hardware/tests/netzteile/bitfenix_formula_gold_450/s03.php

 

Its most efficient at around 30-60%!!

And even if, we aren't talking about much here, 1-2,5% at worst. If at all. That's not really worth it!

"Hell is full of good meanings, but Heaven is full of good works"

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2 minutes ago, Stefan Payne said:

Why should PSU  manufacturers rate their PSU for 24/7 usage, sometimes even at rated temperature?!

Like Bitfenix does with their Whisper M and Formula series. 

 

Good quality PSU are rated for continous power!

 

That's just false information!


Look:

http://www.tweakpc.de/hardware/tests/netzteile/seasonic_focus_gold/s03.php

http://www.tweakpc.de/hardware/tests/netzteile/bitfenix_formula_gold_450/s03.php

 

Its most efficient at around 30-60%!!

And even if, we aren't talking about much here, 1-2,5% at worst. If at all. That's not really worth it!

My apologies. My knowledge seems to be based on 240v current and higher quality PSUs, where the efficiency curve doesn't drop off at 60%.

In this case tho, I was comparing general efficiency numbers. If he end up getting a 400W PSU, he'd always be above the above that 60-70% mark at full load, which would end up resulting in worse efficiency. My statement was completely right if taken in context. 

 

"Good quality PSU are rated for continous power!"

Yes, but what he's getting isn't a good quality PSU. Please refer from bashing what I said because of supererogatory amounts salt you seem to posses.  

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2 hours ago, Light-Yagami said:

My apologies. My knowledge seems to be based on 240v current and higher quality PSUs, where the efficiency curve doesn't drop off at 60%.

In this case tho, I was comparing general efficiency numbers. If he end up getting a 400W PSU, he'd always be above the above that 60-70% mark at full load, which would end up resulting in worse efficiency. My statement was completely right if taken in context. 

Doesn't matter, the efficiency "curve" is unimportant and not really an argument for a higher wattage unit either. Why bother with it at all?

OK, with an 80plus Bronze unit it might matter a bit more, but not that much, look at that as examples:

http://www.tweakpc.de/hardware/tests/netzteile/cougar_vtx_500/s03.php

http://www.tweakpc.de/hardware/tests/netzteile/kolink_kl_c500/s03.php

http://www.tweakpc.de/hardware/tests/netzteile/chieftec_proton/s03.php

http://www.tweakpc.de/hardware/tests/netzteile/cougar_stx_550/s03.php

http://www.tweakpc.de/hardware/tests/netzteile/xilence_performance_a_plus_430/s03.php

 

 

OK, with the proton it matters a bit more as it drops a bit more than the others but it also is more efficient under lower loads like for example the Cougar VTX...

 

The efficiency cuve just doesn't curve in the way you think it does.

And all those curves can't be used for Corsair CX either because of a completely different topology...

The Corsair CX has an LLC Resonant mode converter...

 

In the end, does it really matter if we talk about ~2-3% difference between the peak point and the efficience at 100% load?!

With 450W we are talking about around 10W or something like that...

But then again, if you care about efficiency, why bother with an 80plus Bronze unit and not get an 80plus Gold or even Platinum one??

 

Quote

"Good quality PSU are rated for continous power!"

Yes, but what he's getting isn't a good quality PSU. Please refer from bashing what I said because of supererogatory amounts salt you seem to posses.  

Corsair - CX (2017) 450W 80+ Bronze Certified ATX Power Supply

Seems good to me, @jonnyGURU probably will approve.

 

And as far as I know its also rated for 40°C room temperature.

And just because its 80plus bronze, doesn't mean its a bad PSU, it just means its a less efficient PSU than an 80plus gold one...

"Hell is full of good meanings, but Heaven is full of good works"

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3 hours ago, Unknown4 said:

This is my config https://pcpartpicker.com/list/nTGJvV and I want to overclock as well to 3.9ghz tell me how much watts do need 

Pls check the compatibility of the cooler with the AM4 Plattform!
Most are not compatible out of the box as it is the case with the one you chose.

 

http://www.coolermaster.com/amd-am4-ryzen-compatability/en/

 

You have to contact Cooler Master Support wich might give you a bit of a delay...

"Hell is full of good meanings, but Heaven is full of good works"

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4 hours ago, Unknown4 said:

This is my config https://pcpartpicker.com/list/nTGJvV and I want to overclock as well to 3.9ghz tell me how much watts do need 

That CX450 will be plenty for overclocking that particular system, but if you end up with a GPU that requires more PCIe connections from your PSU then you'll be SOL.

 

I'd personally get a Corsair TX550M as you can often find those on sale.

My account is almost entirely dormant. Hope you all are having a grand time. Many years of fun were had here.

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On 15/12/2017 at 8:27 PM, STRMfrmXMN said:

That CX450 will be plenty for overclocking that particular system, but if you end up with a GPU that requires more PCIe connections from your PSU then you'll be SOL.

 

I'd personally get a Corsair TX550M as you can often find those on sale.

 

A 65W gpu, means that 65 Watts are consumpted per hour or per minute?

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9 minutes ago, kluader said:

 

A 65W gpu, means that 65 Watts are consumpted per hour or per minute?

Electricity is measured in kilowatt-hours so I don't think your logic lines up, although the math-heavy side of electrical engineering is not my thing, so I won't pretend to know everything about that subject.

 

EDIT: Actually wait, kW-h is a measurement of capacity, no?

 

IDK

My account is almost entirely dormant. Hope you all are having a grand time. Many years of fun were had here.

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1 minute ago, STRMfrmXMN said:

Electricity is measured in kilowatt-hours so I don't think your logic lines up, although the math-heavy side of electrical engineering is not my thing, so I won't pretend to know everything about that subject.

My bad.

 

I think that word "Watt" contains hour, since its energy. Watt-hour, is Watt per hour.

 

But I also think that Watt-month is Watt per month.

Anyway.

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3 minutes ago, kluader said:

My bad.

 

I think that word "Watt" contains hour, since its energy. Watt-hour, is Watt per hour.

 

But I also think that Watt-month is Watt per month.

Anyway.

Check edit, I don't really know about this tbh

My account is almost entirely dormant. Hope you all are having a grand time. Many years of fun were had here.

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8 minutes ago, STRMfrmXMN said:

Electricity is measured in kilowatt-hours so I don't think your logic lines up, although the math-heavy side of electrical engineering is not my thing, so I won't pretend to know everything about that subject.

 

EDIT: Actually wait, kW-h is a measurement of capacity, no?

 

IDK

its energy, its an amount.

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On 12/15/2017 at 5:41 AM, Unknown4 said:

This is my config https://pcpartpicker.com/list/nTGJvV and I want to overclock as well to 3.9ghz tell me how much watts do need 

Don't overclock your CPU to 3.9 GHz on that board or that cooler, just by the way. The voltage requires for most 1600s is going to be WAY too high for that motherboard (considering it has no VRM heatsink and will just vdroop to intolerable levels) and your cooler definitely can't handle a 1600 at 1.4V if my Cryorig H7 (which is a better cooler) can't handle my 1700X at anything more than stock voltage.

My account is almost entirely dormant. Hope you all are having a grand time. Many years of fun were had here.

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