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PSU HELP

post #1 of 5
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Ok so Im getting a Rog Strix 270zE with 3000Mhz 16 GB of RAM, 6700k Processor and 2 rog strix Geforce 1070s do i need a 1000W power supply?
post #2 of 5
Found this here http://www.guru3d.com/articles-pages/nvidia-geforce-gtx-1070-review,8.html

Here is Guru3D's power supply recommendation:

GeForce GTX 1070 / 1080 - On your average system the card requires you to have a 450~500 Watts power supply unit.
GeForce GTX 1070 / 1080 SLI - On your average system the cards require you to have a 750~850 Watts power supply unit.
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post #3 of 5
Are you seriously asking that question?
Such a system draws less then 500 watts at full load so no

A good 650 watt would be more then enough
And Guru3D's power supply recommendation is way bigger then what you will see in the real world so no.
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Seravee
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post #4 of 5
Quote:
Originally Posted by AquarianLogic View Post

Ok so Im getting a Rog Strix 270zE with 3000Mhz 16 GB of RAM, 6700k Processor and 2 rog strix Geforce 1070s do i need a 1000W power supply?
Corsair RMx/i and SF or EVGA G2/3/P/T or SuperFlower or some of the expensive Seasonics, 650W should be fine for most. An 850W is gonna run fanless in hybrid mode most likely even at full load.
post #5 of 5
Quote:
Originally Posted by AquarianLogic View Post

Ok so Im getting a Rog Strix 270zE with 3000Mhz 16 GB of RAM, 6700k Processor and 2 rog strix Geforce 1070s do i need a 1000W power supply?

 

The GTX 1070 just sips power. Its power consumption is very similar to the GTX 970. You could power your computer with a good quality-made 550W PSU if you had to.

 

http://www.guru3d.com/articles_pages/nvidia_geforce_gtx_1070_review,8.html

 

161W. The GTX 970 pulled 154W. Since Guru3D was still doing a break-down of the power consumption back when they wrote the review for the GTX 900 Series, I have to use that review and just add 7W (14W for 2):

 

http://www.guru3d.com/articles_pages/geforce_gtx_970_sli_review,4.html

 

As you can see, their power supply pulled 439W out of the wall outlet with two GTX 970s under full load in SLI. If we assume that their PSU was 90% efficient while pulling 439W, then that would mean their computer pulled 395W out of the PSU. The 6700K just sips power too - even when overclocked, and with it overclocked while gaming your power consumption would peak at around 475W to maybe 500W. Add about 15W for replacing these two 970s with two 1070s and you're looking at maybe a maximum power consumption while gaming of 515W.

 

So, I would recommend a good quality-made 650W PSU.

 

Quote:
Originally Posted by BlkDrgn28 View Post

Found this here http://www.guru3d.com/articles-pages/nvidia-geforce-gtx-1070-review,8.html

Here is Guru3D's power supply recommendation:

GeForce GTX 1070 / 1080 - On your average system the card requires you to have a 450~500 Watts power supply unit.
GeForce GTX 1070 / 1080 SLI - On your average system the cards require you to have a 750~850 Watts power supply unit.

 

Guru3D's power supply recommendations are for peak-rated PSUs. The typical 450-500W peak-rated PSU would have a +12V capacity of no more than about 324W for the 450W PSU and 360W for the 500W PSU. There are very nice 450W PSUs that have a +12V capacity of 444W.

 

The +12V capacity of a peak-rated 750W PSU would be no more than about 540W, while the +12V capacity of a peak-rated 850W PSU would be no more than about 612W. Almost every good quality-made 550W PSU I've ever recommended has a +12V capacity of 540W. My HX650's +12V capacity is 624W. Today's HX650 has a +12V capacity of 648W.

It's a computer!
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i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
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250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
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Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
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Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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