850W or 1000W PSU or even more for OC system??

[Favebook]

Hello everyone,

 

I am in a place where I am not really sure how much my system can draw. For the start I'll list my specs:

Case: Carbide Series SPEC-OMEGA RGB Mid-Tower

Mobo: Z370 AORUS Gaming 7 (rev. 1.0)

CPU: Intel® Core™ i7-8700K Processor

GPU: Aorus 1080 Ti

RAM: VENGEANCE® RGB PRO 16GB (2 x 8GB) DDR4 DRAM 3200MHz

Fans: 3x LL120 RGB 120mm + 3x Fans(yet to decide which ones, will be used for cooling the radiator)

SSD: 240GB Kingston SSD (System is running on it)

HDD: WD Red Pro 10TB (for movies and big files)

Apart from main components, all I use is gaming keyboard/mouse, headset and one external hdd 2TB.

 

To be added:

Radiator,pump and liquid cooling components.

 

Now, I will probably be going with full ekwb CPU+GPU hardline build. The pump I will use most likely is: EK-XRES 140 Revo D5 PWM.

 

And back to the main question, I wouldn't really be asking here what PSU should I take if I planned on using my build as is, but I plan to overclock my PC to the best clock possible and stable. I aim for the 5.1+Ghz on CPU and on GPU whatever stable clock I achieve. Therefore, I have no idea how many watts my liquid cooled-overclocked system will be using. I was firstly planning to buy Corsair HX850i or any of AXi in the same range, but now I am unsure if I should be going for Corsair HX1000i or higher?

 

[Lurick]

850 watts is more than enough.

My system with dual 980Tis + a 7900X overclocked barely pulls 950 watts on 100% load.

 

Edit:

Forgot to add this is only when everything is on 100% load

[GoldenLag]

good quality 650 watt is enough. something like the seasonic focus gold plus 650/750 watt

[Princess Luna]

8 minutes ago, Lurick said:

850 watts is more than enough.

A normal 8700K build with a single GPU? 500w would be enough already, in fact yeah get something like the TX550M/Seasonic 550w Focus Gold and with the money you saved get a better boot SSD drive.

[Picklestine]

I have a 8700k at 5Ghz 1.295v and a overclocked 1080, corsair aio and 6 rgb fans and rgb strips and OCd rgb ram. max pull is 550w and i have a RM750x

[Favebook]

9 minutes ago, Lurick said:

850 watts is more than enough.

My system with dual 980Tis + a 7900X overclocked barely pulls 950 watts on 100% load.

 

Edit:

Forgot to add this is only when everything is on 100% load

Thank you for your input. I just checked your system, it is awesome by the way!

 

2 minutes ago, Princess Cadence said:

A normal 8700K build with a single GPU? 500w would be enough already, in fact yeah get something like the TX550M/Seasonic 550w Focus Gold and with the money you saved get a better boot SSD drive.

What do you mean by "better", NVMe SSD?

 

2 minutes ago, Picklestine said:

I have a 8700k at 5Ghz 1.295v and a overclocked 1080, corsair aio and 6 rgb fans and rgb strips and OCd rgb ram. max pull is 550w and i have a RM750x

Woah, so my numbers are way off, thanks for the input. As you and other guys suggested, I will go for a lower wattage PSU then.

[Princess Luna]

1 minute ago, Favebook said:

What do you mean by "better", NVMe SSD?

Oh no just something like a Crucial MX300 or Samsung Evo series, even a SanDisk Ultra, SATA 3 SSDs are more than sufficient, only reason I'm booting from NVMe myself is because my motherboard only had 4 SATA ports lol!

 

It's just that you should probably avoid Kingston's entry level SSDs they are known to be far from ideal not to mention Kingston shady practices on their entry level hardware:

https://www.extremetech.com/extreme/184253-ssd-shadiness-kingston-and-pny-caught-bait-and-switching-cheaper-components-after-good-reviews

[Picklestine]

Just now, Favebook said:

 

Woah, so my numbers are way off, thanks for the input. As you and other guys suggested, I will go for a lower wattage PSU then.

Like said before don't go lower then a 650w gold but if you can find a decent deal on a 850, I personally would get a 850 thats why I got a 750 when I had a i5 7600k and the 1080 also I like to spend $$$ to "future proof" my rig haha

[Picklestine]

also have a look at the corsair 500d rgb case, it comes with 3 LL120 fans and a commander pro hub. if your going to buy the fans anyway its kinda a better price then.

 https://au.pcpartpicker.com/product/xVbwrH/corsair-obsidian-500d-rgb-se-atx-mid-tower-case-cc-9011139-ww

[Favebook]

7 minutes ago, Princess Cadence said:

Oh no just something like a Crucial MX300 or Samsung Evo series, even a SanDisk Ultra, SATA 3 SSDs are more than sufficient, only reason I'm booting from NVMe myself is because my motherboard only had 4 SATA ports lol!

 

It's just that you should probably avoid Kingston's entry level SSDs they are known to be far from ideal not to mention Kingston shady practices on their entry level hardware:

https://www.extremetech.com/extreme/184253-ssd-shadiness-kingston-and-pny-caught-bait-and-switching-cheaper-components-after-good-reviews

I have a spare SanDisk Ultra II which I can use but I never figured they were better than Kingston. We don't really have a big selection of SSD's and generally computer hardware in our country, but I will probably figure something. Thank you for the info tho. 

 

8 minutes ago, Picklestine said:

Like said before don't go lower then a 650w gold but if you can find a decent deal on a 850, I personally would get a 850 thats why I got a 750 when I had a i5 7600k and the 1080 also I like to spend $$$ to "future proof" my rig haha

That is the way I was thinking as well... Future proof PSU.

 

4 minutes ago, Picklestine said:

also have a look at the corsair 500d rgb, it comes with 3 LL120 fans and a commander pro hub. if your going to buy the fans anyway its kinda a better price then.

 https://au.pcpartpicker.com/product/xVbwrH/corsair-obsidian-500d-rgb-se-atx-mid-tower-case-cc-9011139-ww

Oh I already have 3 LL120 Fans and commander pro hub. I only need some static pressure fans for the radiator.

[Picklestine]

Just now, Favebook said:

 

That is the way I was thinking as well... Future proof PSU.

 

If you got the cash get a decent 850w I would ha

 

[Mick Naughty]

850 minimum. Prefer to leave room in my rigs instead of barely getting by. 

[Favebook]

3 hours ago, Picklestine said:

If you got the cash get a decent 850w I would ha

 

Cash is not a problem. Supply is.

 

2 hours ago, Mick Naughty said:

850 minimum. Prefer to leave room in my rigs instead of barely getting by. 

That is true, that is why I wanted to go for HX850i as first choice, didn't even think about going lower. But was thinking maybe I would need more due to overclocking or as a future proof.

[kurt kurtson]

Got a 8700k at 5.1 GHz

oc‘d 1080Ti 

custom wc with 2 D5 Pumps

11 Fans

4 LED Strips

850W Seasonic Prime Titanium

Running with no Problems 

850w is plenty

[Favebook]

29 minutes ago, kurt kurtson said:

Got a 8700k at 5.1 GHz

oc‘d 1080Ti 

custom wc with 2 D5 Pumps

11 Fans

4 LED Strips

850W Seasonic Prime Titanium

Running with no Problems 

850w is plenty

That is such a great news. This is almost a perfect reflection of my final build. Tho, may I ask why do you use 2 D5 Pumps? Isn't one enough?

[kurt kurtson]

Got 3 Hardwarelabs GTS Radiators, VERY restrictive. Had a single Pump at the beginning but low flow rates (80L/h) with the Pump on 100%. Added a second D5 in serial, now ive got very decent flow rates on low noise. Any other radiator like EKWB or Alphacool and you are fine with one D5

12 minutes ago, Favebook said:

That is such a great news. This is almost a perfect reflection of my final build. Tho, may I ask why do you use 2 D5 Pumps? Isn't one enough?

 

[Dedayog]

You'll probably pull less than 500 w from the wall using a Kilowatt tester.  

[Electric_Eclectic]

I concur 850 is plenty for that system. Probably overkill but a little headroom is a good idea for future additions/upgrades.

 

My go-to source for high-quality power supplies also has a nice wattage calculator that you can plug in those values and see the expected draw and a recommendation on size. I generally find they "upsize" from the expected load with the recommendations by about the same amount I do to allow for overclocking, additional drives, and an upgrades higher-power GPU before EOL of my system, so I think their recommended sizing is reasonable.

 

https://seasonic.com/wattage-calculator

 

I bet if you put those #s in, a 750 might well work and still have a little headroom, but there's not probably a big penalty to go to an 850 - you might reasonably expect a future higher draw RTX card, etc., but I certainly don't think you need to go to 1K unless you plan to upgrade AND dual GPU in there.

[Stefan Payne]

17 hours ago, Favebook said:

I was firstly planning to buy Corsair HX850i or any of AXi in the same range, but now I am unsure if I should be going for Corsair HX1000i or higher?

for a single GPU/CPU System thats bullshit.

A good quality 550W PSU is more than enough with our current knowledge.

 

As for Intel CPU: Due to rise in prices, they aren't desirable right now. All the recommendations are based on about the same price than the AMD counterpart - not +150€ for the Intel part.

17 hours ago, Picklestine said:

Like said before don't go lower then a 650w gold but if you can find a decent deal on a 850, I personally would get a 850 thats why I got a 750 when I had a i5 7600k and the 1080 also I like to spend $$$ to "future proof" my rig haha

No, why should he not go for a 550W?
Do you know how freaking hard it is to get to around 450W Load on the primary??

 

750W+ is Multi GPU or multi CPU/HEDT Area.

We are talking about a Standard Desktop/Mobile System.

[Picklestine]

3 hours ago, Stefan Payne said:

 

No, why should he not go for a 550W?
Do you know how freaking hard it is to get to around 450W Load on the primary??

 

750W+ is Multi GPU or multi CPU/HEDT Area.

We are talking about a Standard Desktop/Mobile System.

from my experience and my current system which is slightly less then what he wants to build but highly overclocked, it pulls 550 to 600w at full load so I wouldnt run a 550w if hes planning on overcloaking the 8700k and 1080ti then running firestrike

[Stefan Payne]

1 minute ago, Picklestine said:

from my experience and my current system which is slightly less then what he wants to build but highly overclocked, it pulls 550 to 600w at full load so I wouldnt run a 550w if hes planning on overcloaking the 8700k and 1080ti then running firestrike

what are you doin?? giving 1,5V to the CPU??

[Picklestine]

7 minutes ago, Stefan Payne said:

what are you doin?? giving 1,5V to the CPU??

I have a 8700k at 5Ghz 1.295v and a overclocked 1080, corsair aio and 6 rgb fans and rgb strips and OCd rgb ram. max pull is 550w and i have a RM750x. i said this above too. I have only my pc plugged into a tplink smart wall plug to measure the power so it might not be the most accurate maybe

[H3LLSMAN]

19 hours ago, Mick Naughty said:

850 minimum. Prefer to leave room in my rigs instead of barely getting by. 

Exactly hell I took it to the extreme and just bought a 1600 watt PSU, it was originally supposed to be a dual 1080ti Poseidon build but the stupid mining craze made that idea get tossed. And now with the 2080ti launch yet again another period of time where its way over MSRP, I can't stand paying over MSRP pro products even intel new 9900k is over guess its a new trend.

 

Do I use anywhere near that in my system?? fuck no lol. But I didn't want to sit there wondering every upgrade for the next 3-4 years saying oh is this too much for my PSU.

[H3LLSMAN]

7 minutes ago, H3LLSMAN said:

Exactly hell I took it to the extreme and just bought a 1600 watt PSU, it was originally supposed to be a dual 1080ti Poseidon build but the stupid mining craze made that idea get tossed. And now with the 2080ti launch yet again another period of time where its way over MSRP, I can't stand paying over MSRP pro products even intel new 9900k is over guess its a new trend.

 

Do I use anywhere near that in my system?? fuck no lol. But I didn't want to sit there wondering every upgrade for the next 3-4 years saying oh is this too much for my PSU.

 

[Favebook]

On 10/16/2018 at 8:37 PM, jstudrawa said:

You'll probably pull less than 500 w from the wall using a Kilowatt tester.  

With normal use, probably. 

 

On 10/16/2018 at 10:54 PM, Electric_Eclectic said:

I concur 850 is plenty for that system. Probably overkill but a little headroom is a good idea for future additions/upgrades.

 

My go-to source for high-quality power supplies also has a nice wattage calculator that you can plug in those values and see the expected draw and a recommendation on size. I generally find they "upsize" from the expected load with the recommendations by about the same amount I do to allow for overclocking, additional drives, and an upgrades higher-power GPU before EOL of my system, so I think their recommended sizing is reasonable.

 

https://seasonic.com/wattage-calculator

 

I bet if you put those #s in, a 750 might well work and still have a little headroom, but there's not probably a big penalty to go to an 850 - you might reasonably expect a future higher draw RTX card, etc., but I certainly don't think you need to go to 1K unless you plan to upgrade AND dual GPU in there.

Used a few of those calculators, ~650 is what I'd get almost every time if I remember correctly.

I thought about going dual GPU, but I don't see a point in it as for now. Tho, I will surely not go under 850W so I won't have to replace it for quite a few years.

On 10/17/2018 at 6:44 AM, Stefan Payne said:

for a single GPU/CPU System thats bullshit.

A good quality 550W PSU is more than enough with our current knowledge.

 

As for Intel CPU: Due to rise in prices, they aren't desirable right now. All the recommendations are based on about the same price than the AMD counterpart - not +150€ for the Intel part.

No, why should he not go for a 550W?
Do you know how freaking hard it is to get to around 450W Load on the primary??

 

750W+ is Multi GPU or multi CPU/HEDT Area.

We are talking about a Standard Desktop/Mobile System.

I hear ya!