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Ideal PSU for gaming rig?

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  • Gaming
  • Power Supplies
  • Motherboards
  • Components
Last response: in Components
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July 28, 2014 7:25:49 AM

Hey, I'm having trouble choosing a PSU for my rig which will be getting upgraded soon.

Curruntly I have:
CPU - AMD Phenom II X2 550
GPU - 3GB Radeon Sapphire 7950 Dual-X
Motherboard - AsRock 960GM
PSU - G7 Power Extreme

What I'm going to have soon:

CPU - i5 4690k
GPU - Same as current
Motherboard - Gigabyte GA-Z97X-SLI
PSU - ???

I've been told that my current PSU is poisonous and needs to be changed fast but I've no clue what to get as I was given this psu, could anyone reccomend a few less than £100 idealy less than £70. Thanks!

More about : ideal psu gaming rig

a b 4 Gaming
a b ) Power supply
a b V Motherboard
July 28, 2014 7:30:23 AM

Put your planned configuration into PCPartPicker.com (you can choose a local version that's near your country to gett better availability of components, etc.)

THat will tell you an approximation of how many Watts you need in your PSU. Add 150-200 for headroom and efficiency, and then consider if you want to add anything else for futureupgrades or maybe SLI/Crossfire in the future.

THen select one of the PSUs presented in PCPartPicker's list that conforms to the models in this list of PSUs at the highest quality level you can afford:

http://www.tomshardware.com/answers/id-1804779/power-su...
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Best solution

a c 523 4 Gaming
a c 2489 ) Power supply
a c 1533 V Motherboard
July 28, 2014 7:42:47 AM

More than enough power and made by one of the BEST - SEASONIC.
PCPartPicker part list / Price breakdown by merchant

Power Supply: XFX 650W 80+ Bronze Certified ATX Power Supply (£62.54 @ Aria PC)
Total: £62.54
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-07-28 15:47 BST+0100


Or a little extra power , made by the best SUPER Flower.

PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA 750W 80+ Bronze Certified Semi-Modular ATX Power Supply (£66.60 @ Aria PC)
Total: £66.60
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-07-28 15:48 BST+0100
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a b 4 Gaming
a b ) Power supply
a b V Motherboard
July 28, 2014 7:47:15 AM

Give someone a PSU and they build a computer. Teach them how to select a PSU and they become a system builder... :D 
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a c 217 4 Gaming
a c 83 ) Power supply
a c 270 V Motherboard
July 28, 2014 7:49:07 AM

TheGamezKid said:
JuniorPCBuilder said:
I Would recommend getting a SeaSonic SSR-650RM (link http://www.newegg.com/Product/Product.aspx?Item=N82E168... )
Or a antec HGC 620 Watt (http://www.newegg.com/Product/Product.aspx?Item=N82E168... ).


I don't know why but on newegg every power supply page says it's either unavailable or out of stock. Could anyone tell me why?


You're from the UK, right? Newegg notices that and sends you to the UK version of their site, which doesn't sell most of the stuff the US version sells.
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a c 523 4 Gaming
a c 2489 ) Power supply
a c 1533 V Motherboard
July 28, 2014 7:58:35 AM

corsair.com

When an Intel Core (i3, i5, i7) processor is idle, it goes into a sleep state that requires less power than when the CPU is active. Since the motherboard voltage regulation modules that provide power to the CPU gets their power from the power supply's +12V rail, these sleep states can dramatically reduce the load on the power supply's +12V rail.

According to Intel's presentation at IDF, the new Haswell processors enter a sleep state called C7 that can drop processor power usage as low as 0.05A. Even if the sleeping CPU is the only load on the +12V rail, most power supplies can handle a load this low. The potential problem comes up when there is still a substantial load on the power supply's non-primary rails (the +3.3V and +5V). If the load on these non-primary rails are above a certain threshold (which varies by PSU), the +12V can go out of spec (voltages greater than +12.6V). If the +12V is out of spec when the motherboard comes out of the sleep state, the PSU's protection may prevent the PSU from running and will cause the power supply to "latch off". This will require the user to cycle the power on their power supply using the power switch on the back of the unit.


While we are still working with Intel on the details of the testing methodology they use to check PSUs for Haswell compatibility, it is already known that a power supply that uses DC to DC for the non-primary rails (the +3.3V and +5V) will not have an issue with the new low power sleep states. This is because a DC to DC buck converter is used to convert +12V to +3.3V and +5V. This means that no matter what load the CPU puts on the power supply, there will always be a load on the +12V because the +12V is required to provide power to +3.3V and +5V.

Corsair utilizes this DC to DC technology in most of their power supplies. Starting with the CX750 and CX750M and moving all of the way through the GS Series, TX and TX-M Series, the HX Series, both the AX Series Gold and AX Series Platinum, and the new AXi Series. So whatever your budget, if you choose Intel's new Haswell processor and wish to utilize the new, low power C7 sleep state, Corsair has a power supply for you.
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July 28, 2014 8:08:20 AM


[/quotemsg]You're from the UK, right? Newegg notices that and sends you to the UK version of their site, which doesn't sell most of the stuff the US version sells.[/quotemsg]

Thanks, I'l keep that in mind. The U.K newegg store sells stuff stupidly cheap. Probably because they just convert dollars to pounds and sell it that way.
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