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Required PSU Wattage for new PC

post #1 of 4
Thread Starter 
Yep, another one of those threads biggrin.gif

I'm planning on making new system soon, or at least parts towards a new system and am unsure of the PSU wattage I require. Based on a lot of what I've read manufacturers tend to over-rate their requirements, especially for video cards?

With that said my proposed system will include:

CPU: Intel Core i7-4770K 3.5GHz Quad-Core Processor
CPU Cooler: Corsair H100i 77.0 CFM Liquid CPU Cooler
Motherboard: Gigabyte GA-Z87X-UD4H ATX LGA1150 Motherboard
SSD: Samsung 840 EVO 250GB 2.5" Solid State Disk
HDD: Western Digital WD Blue WD10EALS 1TB

And either 2x R9-290's, or 2x 780 classifieds.

I plan to overclock the cpu and video cards. Can anyone give me an idea of the proper wattage rating I should be looking at for my PSU?
post #2 of 4
Quote:
Originally Posted by Katawa View Post

Yep, another one of those threads biggrin.gif

I'm planning on making new system soon, or at least parts towards a new system and am unsure of the PSU wattage I require. Based on a lot of what I've read manufacturers tend to over-rate their requirements, especially for video cards?

With that said my proposed system will include:

CPU: Intel Core i7-4770K 3.5GHz Quad-Core Processor
CPU Cooler: Corsair H100i 77.0 CFM Liquid CPU Cooler
Motherboard: Gigabyte GA-Z87X-UD4H ATX LGA1150 Motherboard
SSD: Samsung 840 EVO 250GB 2.5" Solid State Disk
HDD: Western Digital WD Blue WD10EALS 1TB

And either 2x R9-290's, or 2x 780 classifieds.

I plan to overclock the cpu and video cards. Can anyone give me an idea of the proper wattage rating I should be looking at for my PSU?

a good PSU like coolermaster V850 should be good enough
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PowerHouse
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My Media Server
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Clearance Abuse
(21 items)
 
CPUMotherboardGraphicsRAM
Ryzen 1700 @ 3.61ghz (1.2vcore) Asus Crosshair VI Hero Gigabyte GTX 980ti G1 @1480/2000  HOF DDR4 4000mhz (3500mhz 18-18-18-38-1T 1.4) 
Hard DriveHard DriveHard DriveHard Drive
Kingston Hyper X 240Gb 3K  Sandisk Ultra II 480gb  Crucial MX300 750gb  Intel 600p 240gb  
CoolingCoolingOSMonitor
Custom Loop  SP 120 (x4) Windows 10 Professional  Benq XL2411T 144hz screen 
MonitorKeyboardPowerCase
Acer AL1916W Coolermaster Quickfire TK MX brown w/ ABS Clear... EVGA 750watts G2 Thermaltake Core P3  
MouseMouse PadAudioAudio
RAZER Imperator BF3 edition RAZER goliathus World of tanks edition Creative gigaworks T40 Series II E10K DAC 
AudioAudioOtherOther
DT 990 Pros  Antlion Modmic  Xbox 360 controller windows Deepcool RGB kit 
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NZXT GRID+  
CPUMotherboardGraphicsRAM
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Hard DriveHard DriveCoolingCooling
Toshiba 80gb (OS) 2 X 2TB Seagate Barracuda Coolermaster Evo 212 2X Xigamatek white LED fans 
OSMonitorKeyboardPower
Linux 3.2.0 \ Open media vault Dell 19 inch Dell OEM poop Coolermaster GS 650M 
Case
NZXT S340 (white) 
CPUMotherboardGraphicsRAM
6700k Z170X Gaming 7 Msi GTX 970  Vengeance red LED 3000mhz DDR4 
Hard DriveHard DriveOptical DriveCooling
Samsung Evo 250gb WD 1TB Blue WD Raptors 150 GB RAID 0  Noctua NF-P14S (x2) 
CoolingOSMonitorMonitor
Intel Liquid Cooling (SP120 X2) Win 10  HP 1730 Acer XB2410H 
KeyboardPowerCaseMouse
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post #3 of 4
You'll need a 850w unit minimum for light to medium overclocking.

If you're a bencher and have the proper cooling to be able to push 1.3v+ on your the said gpus, then opt for a 1200w unit.

It's all what kind of clocks and voltage you'll use.
post #4 of 4
Cooler Master V850/1000 or EVGA SuperNova P2
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Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD40EZRX  WD Green WD60EZRX  WD Red WD80EFZX 8TB  
Optical DriveCoolingCoolingOS
LG CH12NS30 5x Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
MonitorKeyboardPowerCase
Asus PG279Q Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt Phanteks Enthoo Luxe 
MouseMouse PadAudioAudio
Roccat Kone XTD Laser Roccat Sense Metor Sennheiser HD 598 Onkyo TX NR646  
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