Will a 750 watt power supply power a amd fx 9590 and 2 r9 270x's in crossfire

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matt1856

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Sep 15, 2015
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I am planning to build a new pc soon, and im having trouble finding out if a 750 watt power supply is enough to power it, here are the specs.

Amd fx 9590
MSI 970 GAMING DDR3 2133 ATX AMD Motherboard
2x r9 270x's Cross-fired
16Gb ddr3 1600mhz ram
1tb western digital black hard drive
250Gb Samsung 850 evo ssd
Corsair Hydro Series High Performance Liquid CPU Cooler H60
Dual Band Wireless N900 PCI Express Adapter,2.4GHz 450Mbps/5Ghz
Asus 24x DVD-RW Serial-ATA Internal OEM Optical Drive
NZXT S340 Mid Tower Case

i know the fx 9590 requires a lot of power, same with the cross-fired 29 270x's,
Is a 750 watt power supply enough?
 
Solution
Dark Lord of Tech
The Cooler isn't good enough and for 1 card setup you need minimum 850w , 2 cards go to 1000w.

Cooler minimum H100i , but Custom water is recommended.

Your choices for the 9000 series:

Asrock 970 Performance
ASRock 990FX Extreme9
ASRock 990FX Extreme6
Asus Crosshair V Formula-Z
Asus M5A99FX PRO R2.0
Asus Sabertooth 990FX R2.0
Gigabyte GA-990FXA-UD3 R4.0\5.0
Gigabyte GA-990FXA-UD5
Gigabyte GA-990FXA-UD7
MSI 990FXA-GD80V2

AMD.COM

Warning: This power draw of this CPU is almost twice that of the average CPU. Due to this, AMD recommends using at minimum a 1000W power supply. For cooling, AMD recommends using either either closed loop liquid cooling or full system liquid cooling.
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GhislainG

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Jul 16, 2008
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The first very serious issue is the motherboard that can't support that 220W CPU; the VRMs will fry. You need a motherboard like the Asus Sabertooth 990FX and a more powerful PSU would be better. Why build on that CPU when an i7-4790K or the newer i7-6700K are faster and much cooler?
 
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Dark Lord of Tech

Dark Lord of Tech

Retired Moderator
Aug 18, 2009
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1,778
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The Cooler isn't good enough and for 1 card setup you need minimum 850w , 2 cards go to 1000w.

Cooler minimum H100i , but Custom water is recommended.

Your choices for the 9000 series:

Asrock 970 Performance
ASRock 990FX Extreme9
ASRock 990FX Extreme6
Asus Crosshair V Formula-Z
Asus M5A99FX PRO R2.0
Asus Sabertooth 990FX R2.0
Gigabyte GA-990FXA-UD3 R4.0\5.0
Gigabyte GA-990FXA-UD5
Gigabyte GA-990FXA-UD7
MSI 990FXA-GD80V2

AMD.COM

Warning: This power draw of this CPU is almost twice that of the average CPU. Due to this, AMD recommends using at minimum a 1000W power supply. For cooling, AMD recommends using either either closed loop liquid cooling or full system liquid cooling.
 
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