Just wondering if the PSU is 100% suffiecent

Carl Willers · Jan 23, 2014

I don't plan on overclocking but I do plan on running games that demand a lot, like Skyrim with graphics mods, and maybe Crysis. I just want to make sure everything is fine and nothing will not work causing other things to break. My main worry is that the power supply will not be sufficient for the build (even though pc park picker says it will) , as I said i'm not going to be overclocking, but I will be playing demanding games. Help will be very much appreciated.

PCPartPicker part list: http://uk.pcpartpicker.com/p/2Ghjn Price breakdown by merchant: http://uk.pcpartpicker.com/p/2Ghjn/by_merchant/ Benchmarks: http://uk.pcpartpicker.com/p/2Ghjn/benchmarks/
CPU: Intel Core i5-4570 3.2GHz Quad-Core Processor (£142.79 @ Aria PC) Motherboard: Asus B85M-G Micro ATX LGA1150 Motherboard (£53.82 @ Scan.co.uk) Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory (£62.99 @ Amazon UK) Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive (£43.99 @ Amazon UK) Video Card: MSI GeForce GTX 760 2GB Video Card (£196.51 @ Scan.co.uk) Case: Fractal Design Core 1000 USB 3.0 MicroATX Mid Tower Case (£33.99 @ Ebuyer) Power Supply: XFX 450W 80+ Bronze Certified ATX Power Supply (£34.99 @ Maplin Electronics) Operating System: Microsoft Windows 8 (OEM) (64-bit) (£73.67 @ Ebuyer) Total: £642.75 (Prices include shipping, taxes, and discounts when available.) (Generated by PCPartPicker 2014-01-23 19:32 GMT+0000)

toyftw · Jan 23, 2014

Carl Willers :

Hi - There are no 100% efficient PSU's. But, that's not really the issue. The PSU you listed the XFX450, is sufficient for that build. That system requires 30 - +12v amps, and the PSU has 34 +12v amps. The PSU also includes 1 - 6pin & 1 - 8pin(6+2) pcie connector required for the gtx 760.

There is one issue to be aware of - that PSU is not certified to be Haswell ready, and your build includes a Haswell CPU. It will not harm your system to use it anyway. You may have to reboot when the computer comes out of sleep state, or modify/disable the sleep state in your BIOS.

Carl Willers · Jan 23, 2014

toyftw :

Carl Willers :

Hi - There are no 100% efficient PSU's. But, that's not really the issue. The PSU you listed the XFX450, is sufficient for that build. That system requires 30 - +12v amps, and the PSU has 34 +12v amps. The PSU also includes 1 - 6pin & 1 - 8pin(6+2) pcie connector required for the gtx 760.

There is one issue to be aware of - that PSU is not certified to be Haswell ready, and your build includes a Haswell CPU. It will not harm your system to use it anyway. You may have to reboot when the computer comes out of sleep state, or modify/disable the sleep state in your BIOS.

So if I turn of sleep state, then the system will be 100% okay, I didn't mean 100% effiecent, I just ment there is no chance in the parts not getting enough power. So even if I was playing Crysis 3 on ultra, I would still have enough power needed to run all the parts (not overclocked)? Also, if there is not enough power supplied what happens?

inzone · Jan 23, 2014

A 450w power supply is a bit low and it's not necessary to be able to say it will work for that build if it's just barely going to do it. I would want a little extra room (watts) just in case it's needed.

I would go with a 650w if it's within your budget to do so.

Nuno Silva · Jan 23, 2014

Nvidia recommends a 500w power supply.

Carl Willers · Jan 23, 2014

inzone :

Why 650w insted of 550w? What 550W and 650W PSU would you recommend with this build?

inzone · Jan 23, 2014

A XFX 550W or 650W , a Seasonic 620W to name a few.

toyftw · Jan 23, 2014

Carl Willers :

toyftw :

So if I turn of sleep state, then the system will be 100% okay, I didn't mean 100% effiecent, I just ment there is no chance in the parts not getting enough power. So even if I was playing Crysis 3 on ultra, I would still have enough power needed to run all the parts (not overclocked)? Also, if there is not enough power supplied what happens?

Yes, there is enough power, the 4 extra +12v amps = 50watts, plenty of headroom if you're not OC.
What will happen with a good quality unit if you have insufficient power is it will shutdown.

You do not need 650 or anywhere near it. If you wanted a big safety cushion you could go to 550,
but it's not needed.

Adroid · Jan 23, 2014

I expect a 550 XFX would be plenty.

I would also recommend a 650 watt seasonic/XFX so in the future if you want to install a hungrier graphics card - say a 290X or a 780ti, you won't have to upgrade the PSU again...

550 is good for the 760, but marginal for anything bigger. 650w is good for any of the single bad-boy cards

Carl Willers · Jan 23, 2014

toyftw :

Carl Willers :

toyftw :

So if I turn of sleep state, then the system will be 100% okay, I didn't mean 100% effiecent, I just ment there is no chance in the parts not getting enough power. So even if I was playing Crysis 3 on ultra, I would still have enough power needed to run all the parts (not overclocked)? Also, if there is not enough power supplied what happens?

Yes, there is enough power, the 4 extra +12v amps = 50watts, plenty of headroom if you're not OC.
What will happen with a good quality unit if you have insufficient power is it will shutdown.

You do not need 650 or anywhere near it. If you wanted a big safety cushion you could go to 550,
but it's not needed.

Just to be safe I'm going with a 550W. http://www.amazon.co.uk/XFX-ATX-550-Power-Supply/dp/B004RJ8EKI Is this a good quality choice, or what would you recommend.

toyftw · Jan 23, 2014

Carl Willers :

toyftw :

Carl Willers :

Yes, there is enough power, the 4 extra +12v amps = 50watts, plenty of headroom if you're not OC.
What will happen with a good quality unit if you have insufficient power is it will shutdown.

You do not need 650 or anywhere near it. If you wanted a big safety cushion you could go to 550,
but it's not needed.

Just to be safe I'm going with a 550W. http://www.amazon.co.uk/XFX-ATX-550-Power-Supply/dp/B004RJ8EKI Is this a good quality choice, or what would you recommend.

Hi again - yes, that is a good quality PSU and will be fine for your system. It has 10 more +12v amps than the 450.
The +12v amps is a more relevant spec than total power. Your CPU, GPU, HDD, etc draw their current from the
+12v rail(s), which is why the 450 is also enough for your system, it has enough +12v amps.

But having more won't hurt and could be beneficial as the PSU won't be working as hard, will tend to be
closer tot he sweetspot of it's efficiency range, and should in theory produce a little less heat.

sora · Jan 24, 2014

XFX is created by SeaSonic so go with dat PSU!!!

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Just wondering if the PSU is 100% suffiecent

Carl Willers

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toyftw

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Carl Willers

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inzone

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Nuno Silva

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Carl Willers

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