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Old 05-17-2012, 04:37 PM   #1
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Default Power Usage Question

Going to be making a new build soon, just wanted to know how much power it would use. The specs are as follows:

I5-2500k (probably 4.6GHz OC)
Noctua NH-D14 (CPU fan)
MSI GTX 560ti OC Twin Frozr II
ASUS P8Z68-V (mobo)
3 x Fractal design 120mm case fans
3 x Fractal design 140mm case fans
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Old 05-17-2012, 04:41 PM   #2
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Default Re: Power Usage Question

a 650 watt psu will be plenty unless you decide to SLI then i would recommend a 750 watt
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Old 05-17-2012, 05:32 PM   #3
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Default Re: Power Usage Question

Yes I'm getting a 650w psu, but I wanted to know how much power it used so that I can figure out how much it's going to cost to run in terms of energy bills.
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Old 05-18-2012, 05:19 AM   #4
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Default Re: Power Usage Question

eXtreme Power Supply Calculator
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Old 05-18-2012, 11:51 AM   #5
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Default Re: Power Usage Question

Quote:
Originally Posted by 1adf1 View Post
Thanks for that. Apparently I use ~570W when under full load, and ~500-510W when in normal use (gaming)
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Old 05-18-2012, 12:51 PM   #6
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Default Re: Power Usage Question

know worrys the 650w power supply will be fine then. always want a bit bigger supply just to be on the safe side and still got abit of room incase you want to upgrade
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Old 05-18-2012, 12:56 PM   #7
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Default Re: Power Usage Question

Yes plus the "570W" was only a recommended guide, the absolute minimum was quite a bit lower.
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Old 05-18-2012, 11:40 PM   #8
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Default Re: Power Usage Question

You're not going to even notice the power consumption from your computer on your power bill. If you're worried about that try unplugging your:
Clock Radios
Instant On TV
Refrigerator
Coffee Pot With Start Timer/Clock
Cordless Phone
Those constant drain devices will put a hurting on your power bill. Your computer running intermittently won't.
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Old 05-19-2012, 08:15 AM   #9
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Default Re: Power Usage Question

POWER REQUIREMENTS for computers

This guide will give you an idea as to what capacity Power Supply you will require when building your own or upgrading your PC.

Add up the power needs of all your components of your computer to find out what size PSU you need.
Aim for around 50-70% of total capacity which should still leave room for upgrade expansion.

MOTHERBOARD
A small board for compact PC's 25W
An average Desktop motherboard 35W
A high end motherboard 50W

INTEL PROCESSOR
Core 2 Duo 8xxx 65W
Core 2 Duo 9xxx 95W
Core 2 Quad 95W
Core 2 Duo Extreme 150W
Core I3 75W
core I5 95W
Core I7-8xx 95W
Core I7-9xx 130W

AMD PROCESSOR
Athlon II X2 'e' 45w
athlon II X2 65W
Athlon II X3 45W
Athlon II X4 95W
Phenom II X2 80W
Phenom II X3 95W
Phenom II X4 X6 140w

Graphics card
AGP or lesser with no extra power 50W
PCI-E with no seperate power supply 75W
PCI_E with 6 pin connector 150W
PCI-E with two 6 pin connector 225W
PCI-E with 8 pin connector 225W
PCI-E with 8 pin and 6 pin connector 300W

MEMORY
Single stick of DDR 6W
Two sticks of DDR 12W
Four sticks of DDR 24W
Two sticks of DDR2 8w
Four sticks of DDR2 16w
Two sticks DDR3 6W
Four sticks DDR3 12w
Six sticks of DDR3 18w

Fans 5w to 10W

Optical Drives 10W

IDE Hard Drives 15W

SATA Hard Drives 10W

Solid State Hard Drives 10W


As mentioned it will give you an idea of your power supply requirements

Brand name Power supplies your choice.
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