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850 or 1200W PSU for SLI 570s

post #1 of 31
Thread Starter 
I have a AX850 and want to use 2 570s in SLI mode.

I have a CI7 2600k moderately OCed to 3.8ghz.

I have 16gigs of ram, SSD for OS and 3 internal HDDs.

I also use 2 USB3.0s for KB and mouse and 3 USB3.0s for 3 EXT drives.

Would a AX850 be enough juice for this or would I need a higher watt PSU?
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Fants Sys
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Intel I7-4790K @ 4.6GHZ ASUS Maximus VII Formula EVGA GTX980TI Classified Corsair Vengeance Pro 32GB 
Hard DriveHard DriveHard DriveHard Drive
Samsung 850 Pro 256GB Seagate 6TB Int Seagate 4 TB Ext Seagate 1.5TB Ext 
Hard DriveOptical DriveCoolingOS
Samsung 950 Pro PCIe Asus External BlueRay Burner Corsair H115i Win 8.1 Pro 64Bit 
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Asus 27" Corsair K70 RGB Corsair AX850 Phanteks Enthoo Evolv ATX Tempered Glass Black 
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post #2 of 31
I would think 850 would be enough as I'm planning the same type of build. When I researched it was around 650w of max power draw.
     
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1tb 850 EVO 4TB of Spinners H110i GT Samsung 34" S34E790C Curved Ultrawide/ Oculus R... 
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6700hq 1070 16gb 1tb 850 evo 
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i5 2500K @4.9GHz ASUS P8Z68-V PRO pny 970 4x4GB Hyper X 1600 
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120GB Corsair Force 3+2TB Hitachi HDD+1.5TB WDGrn Lite ON BD RE Win7HP64 58" Samsung Plasma 
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Blackwidow Ultimate NZXT HALE90 850W Thermaltake Element G Logitech MX-518 
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CPUMotherboardGraphicsRAM
5820k @4.5GHz 24/7 GA-X99-SLI MSI 1080 TI Seahawk X 16GB gSkill 3200 
Hard DriveHard DriveOSMonitor
1tb 850 EVO 4TB of Spinners H110i GT Samsung 34" S34E790C Curved Ultrawide/ Oculus R... 
KeyboardPowerCaseMouse
Blackwidow Ultimate Corsair RM850X Fractal R5 Ti Window G900 Chaos Spectrum 
CPUGraphicsRAMHard Drive
6700hq 1070 16gb 1tb 850 evo 
CPUMotherboardGraphicsRAM
i5 2500K @4.9GHz ASUS P8Z68-V PRO pny 970 4x4GB Hyper X 1600 
Hard DriveOptical DriveOSMonitor
120GB Corsair Force 3+2TB Hitachi HDD+1.5TB WDGrn Lite ON BD RE Win7HP64 58" Samsung Plasma 
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Blackwidow Ultimate NZXT HALE90 850W Thermaltake Element G Logitech MX-518 
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post #3 of 31
AX850 is more than enough. Your system will draw ~650W at full load.

Off topic: what's with the 2600K CPU and only 3.8GHz OC?
At long last...
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At long last...
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post #4 of 31
The 850 is more than enough for 2
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DVD burner XSPC Raystorm RX360 D5 
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Alphacool Repack D5 Kingpin CPU pot Windows 7 Dell U2211 
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post #5 of 31
Thread Starter 
I just havent OCed it yet is all.
Fants Sys
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Intel I7-4790K @ 4.6GHZ ASUS Maximus VII Formula EVGA GTX980TI Classified Corsair Vengeance Pro 32GB 
Hard DriveHard DriveHard DriveHard Drive
Samsung 850 Pro 256GB Seagate 6TB Int Seagate 4 TB Ext Seagate 1.5TB Ext 
Hard DriveOptical DriveCoolingOS
Samsung 950 Pro PCIe Asus External BlueRay Burner Corsair H115i Win 8.1 Pro 64Bit 
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Asus 27" Corsair K70 RGB Corsair AX850 Phanteks Enthoo Evolv ATX Tempered Glass Black 
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Logitech G602 Onboard 
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Fants Sys
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CPUMotherboardGraphicsRAM
Intel I7-4790K @ 4.6GHZ ASUS Maximus VII Formula EVGA GTX980TI Classified Corsair Vengeance Pro 32GB 
Hard DriveHard DriveHard DriveHard Drive
Samsung 850 Pro 256GB Seagate 6TB Int Seagate 4 TB Ext Seagate 1.5TB Ext 
Hard DriveOptical DriveCoolingOS
Samsung 950 Pro PCIe Asus External BlueRay Burner Corsair H115i Win 8.1 Pro 64Bit 
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Asus 27" Corsair K70 RGB Corsair AX850 Phanteks Enthoo Evolv ATX Tempered Glass Black 
MouseAudio
Logitech G602 Onboard 
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post #6 of 31
Thread Starter 
How about the USB3.0 devices and int drives (hdds & br burner)?

I have right now 3 ext usb3.0 drives, a ext dvd burner connected, along with a wired kb & mouse. (6 USB3.0s in use). I thought those would add to the power consumption.

Of course corsair said that I would need at least 1000-1200

Just wanna make sure is all
Fants Sys
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CPUMotherboardGraphicsRAM
Intel I7-4790K @ 4.6GHZ ASUS Maximus VII Formula EVGA GTX980TI Classified Corsair Vengeance Pro 32GB 
Hard DriveHard DriveHard DriveHard Drive
Samsung 850 Pro 256GB Seagate 6TB Int Seagate 4 TB Ext Seagate 1.5TB Ext 
Hard DriveOptical DriveCoolingOS
Samsung 950 Pro PCIe Asus External BlueRay Burner Corsair H115i Win 8.1 Pro 64Bit 
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Asus 27" Corsair K70 RGB Corsair AX850 Phanteks Enthoo Evolv ATX Tempered Glass Black 
MouseAudio
Logitech G602 Onboard 
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Reply
Fants Sys
(18 items)
 
  
CPUMotherboardGraphicsRAM
Intel I7-4790K @ 4.6GHZ ASUS Maximus VII Formula EVGA GTX980TI Classified Corsair Vengeance Pro 32GB 
Hard DriveHard DriveHard DriveHard Drive
Samsung 850 Pro 256GB Seagate 6TB Int Seagate 4 TB Ext Seagate 1.5TB Ext 
Hard DriveOptical DriveCoolingOS
Samsung 950 Pro PCIe Asus External BlueRay Burner Corsair H115i Win 8.1 Pro 64Bit 
MonitorKeyboardPowerCase
Asus 27" Corsair K70 RGB Corsair AX850 Phanteks Enthoo Evolv ATX Tempered Glass Black 
MouseAudio
Logitech G602 Onboard 
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Reply
post #7 of 31
You'll be fine!
     
CPUMotherboardGraphicsRAM
5820k @4.5GHz 24/7 GA-X99-SLI MSI 1080 TI Seahawk X 16GB gSkill 3200 
Hard DriveHard DriveOSMonitor
1tb 850 EVO 4TB of Spinners H110i GT Samsung 34" S34E790C Curved Ultrawide/ Oculus R... 
KeyboardPowerCaseMouse
Blackwidow Ultimate Corsair RM850X Fractal R5 Ti Window G900 Chaos Spectrum 
CPUGraphicsRAMHard Drive
6700hq 1070 16gb 1tb 850 evo 
CPUMotherboardGraphicsRAM
i5 2500K @4.9GHz ASUS P8Z68-V PRO pny 970 4x4GB Hyper X 1600 
Hard DriveOptical DriveOSMonitor
120GB Corsair Force 3+2TB Hitachi HDD+1.5TB WDGrn Lite ON BD RE Win7HP64 58" Samsung Plasma 
KeyboardPowerCaseMouse
Blackwidow Ultimate NZXT HALE90 850W Thermaltake Element G Logitech MX-518 
  hide details  
Reply
     
CPUMotherboardGraphicsRAM
5820k @4.5GHz 24/7 GA-X99-SLI MSI 1080 TI Seahawk X 16GB gSkill 3200 
Hard DriveHard DriveOSMonitor
1tb 850 EVO 4TB of Spinners H110i GT Samsung 34" S34E790C Curved Ultrawide/ Oculus R... 
KeyboardPowerCaseMouse
Blackwidow Ultimate Corsair RM850X Fractal R5 Ti Window G900 Chaos Spectrum 
CPUGraphicsRAMHard Drive
6700hq 1070 16gb 1tb 850 evo 
CPUMotherboardGraphicsRAM
i5 2500K @4.9GHz ASUS P8Z68-V PRO pny 970 4x4GB Hyper X 1600 
Hard DriveOptical DriveOSMonitor
120GB Corsair Force 3+2TB Hitachi HDD+1.5TB WDGrn Lite ON BD RE Win7HP64 58" Samsung Plasma 
KeyboardPowerCaseMouse
Blackwidow Ultimate NZXT HALE90 850W Thermaltake Element G Logitech MX-518 
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post #8 of 31
it's fine... i'm running an ax850 and 2x570s as we speak. I've even run 3 before.. (i wouldn't recommend running furmark with 3x570s though, it crashed at stock )
Edited by badatgames18 - 6/21/11 at 11:22am
Galbus
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Plextor M8Pe AIC 1TB PCI-Express 3.0 x4 MLC Int... Plextor M8Pe AIC 1TB PCI-Express 3.0 x4 MLC Int... LG BH16NS40 Blu-ray Card Reader: Rosewill RDCR-11003 - 3.5" 74-in-1... 
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Galbus
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Intel Core i7-6700K 8M Skylake Quad-Core 4.0 G... ASUS ROG MAXIMUS VIII EXTREME LGA 1151 Intel Z1... 3x MSI GeForce GTX 1080 Founders Edition  2x [Trident Z] F4-3600C16D-16GTZKW 16-16-16-36... 
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Plextor M8Pe AIC 1TB PCI-Express 3.0 x4 MLC Int... Plextor M8Pe AIC 1TB PCI-Express 3.0 x4 MLC Int... LG BH16NS40 Blu-ray Card Reader: Rosewill RDCR-11003 - 3.5" 74-in-1... 
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Custom Ultra cool passive heatsink Microsoft Windows 10 Pro 64-bit ViewSonic XG2703-GS Black 27" 4ms (GTG) IPS G-S... Das Keyboard 4 Professional Mechanical Keyboard 
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CORSAIR AXi Series AX1500i Digital 1500W 80 PLU... Corsair Obsidian 750D Black Aluminum / Steel AT... Logitech G900 Chaos Spectrum Logitech 
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onboard Canon i-SENSYS LBP7680Cx (5089B014) Duplex 9600... Canon imageFORMULA DR-F120 (9017B002) 600 dpi U... Brother Personal Plain Paper Fax Machine, FAX-575 
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post #9 of 31
USB devices use a negateable amount of power. Unless your already at the peak on the psu, dont worry about it.
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Intel Processor 4770k Z87X-OC Force-CF AMD Radeon HD 7970 AMD Radeon HD 7970 
RAMHard DriveHard DriveHard Drive
dominator gt Samsung 840 EVO Samsung 840 EVO Samsung F3 
Optical DriveCoolingCoolingCooling
DVD burner XSPC Raystorm RX360 D5 
CoolingCoolingOSMonitor
Alphacool Repack D5 Kingpin CPU pot Windows 7 Dell U2211 
MonitorKeyboardPowerCase
40" Samsung 1080P 120hz 15 years old mechanical AX-1200 HAF 932 
MouseMouse PadAudio
Deathadder 2013 Pyrrhus Creative Soundblaster Z 
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Daily Bench Rig
(23 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Processor 4770k Z87X-OC Force-CF AMD Radeon HD 7970 AMD Radeon HD 7970 
RAMHard DriveHard DriveHard Drive
dominator gt Samsung 840 EVO Samsung 840 EVO Samsung F3 
Optical DriveCoolingCoolingCooling
DVD burner XSPC Raystorm RX360 D5 
CoolingCoolingOSMonitor
Alphacool Repack D5 Kingpin CPU pot Windows 7 Dell U2211 
MonitorKeyboardPowerCase
40" Samsung 1080P 120hz 15 years old mechanical AX-1200 HAF 932 
MouseMouse PadAudio
Deathadder 2013 Pyrrhus Creative Soundblaster Z 
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post #10 of 31
You could run on a nice 750W unit with ease.
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