Can a Corsair HX750 power this?

RedTop89

RedTop89

RedTop89

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hello i have ordered my PSU in the this week only offer and need to ask if it will power this spec comfortably, its my new build i am currently in the process of upgrading.

i5 3570K
8GB 1600MHz RAM
ASRock Z77 Extreme4 Intel Z77
1, 1TB HD. 1, 500GB HD
2, ASUS GTX670 DirectCU II SLI

I have read on the net about a HX750 exploding when some guy used one for 680 SLI and an x79 3820 CPU but reviews i have read about the PSU are that it is rated extremely high and could have easily had an 850W sticker on it so i really don't know what to think anymore a little clarification would be great thanks.
 
I expect it should be fine, with an older more power hungry i7 920 @4ghz and a single gtx 670 wf oc'd, im seeing a power draw at the wall of 420w when gaming. Psu is a corsair HX850w. Prior to that i had gtx 470's in sli, power draw was at 630w.
 
I have read some amazing reviews with the corsair HX series so i wasn't in much doubt about it until i read about his blowing up. He could have had a faulty unit but i am the type to worry now i have read that. going by one review though i think it should be more han enough but i just want that peace of mind that it will. will the Overclock UK techies know if i email them? cheers.
 
People overestimate how much power their PC actually use. That HX750 will be able to run quite a lot before it struggles.
 
Short answer, Yes, with plenty of overhead. Corsair power supplies are very efficient and actually produce the output power stated unlike some cheap supplies.
 
Emphacy said:
Short answer, Yes, with plenty of overhead. Corsair power supplies are very efficient and actually produce the output power stated unlike some cheap supplies.
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i read a review and they said the HX outputs around 880W or around there and could easily have had a 850W sticker on the side. it is still highly efficient at that max load too. i just need to know it will be a decent PSU for the SLI and a slight overclock on the processor.

EDIT found the review and this is a quote from the conclusion.

To cut a long story short, the HX750w is every bit as good as it's bigger brother the HX850w. Throughout the testing the voltage and efficiency results were so uncannily similar that if not for the MAX load results topping out at 913w (vs 1084w on the HX850w), we would have happily put money on the HX750w simply being a HX850w with different stickers and less two of the hard-wired PCI-E connectors.

The Good
- Extremely high efficiency at around 90-93%.
- Runs reasonably cool and quiet (from what we could tell over the din of the load tester)
- Excellent voltage regulation on all rails, even in cross load situations.
- Ripple almost non-existant on +3.3v and +5v rails. Also very low on +12v rail.
- High quality internal components.
- Great modular connector system with plenty of sexy 'flat' style cables.
- Well packaged. Hardly any chance of damage during shipping.
- Has a sustainable peak output of 887w when running at 50°C!

The Mediocre
- Would quite like for hard-wired cables to use the same 'flat' style cables as the modular connectors.

The Bad
- Nothing at all
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Rusty0611 said:
Have you not heard enough yet? You've had numerous people telling you that a 750W is more than enough for dual GPU system. :p

Answer is yes. Less headroom but still plenty.
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chill your beans dude im only asking cos the i7 X79 is a 130W CPU as opposed to the 77W ivy and i know it will use more than 130W under load so please sir is it ok if i ask?
 
RedTop89 said:
chill your beans dude im only asking cos the i7 X79 is a 130W CPU as opposed to the 77W ivy and i know it will use more than 130W under load so please sir is it ok if i ask?
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It will run it fine...

Buy a power meter while you're at it and then check what your PC uses day to day and then maybe you'll stop worrying about can this PSU run this and that.

Or go check a review for a similar setup you're thinking of and then look at the power consumption.
 
hi could you point me in the direction of a similar setup with a HX750? i just downloaded a PSU calculator from an overclocking website which was made by some people who have tested the systems and it says the HX750 will be absolutely fine.

Also could you tell me where i can buy a power meter? cheers.
 
RedTop89 said:
hi could you point me in the direction of a similar setup with a HX750? i just downloaded a PSU calculator from an overclocking website which was made by some people who have tested the systems and it says the HX750 will be absolutely fine.

Also could you tell me where i can buy a power meter? cheers.
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Power Meter - http://www.overclockers.co.uk/showproduct.php?prodid=NW-003-EN

You don't need to find a review with the exact same PSU, you just need to see how much power it consumes at the wall. If it's nowhere near the rating of the PSU then it's fine. That's not just all that matters the PSU has to be a good quality one able to deliver that power and the HX750 does.

Have a look at - http://hexus.net/tech/reviews/cpu/32648-intel-core-i7-3930k-sandy-bridge-e-cpu/?page=6

The 3930k power usage is nothing massively different to other CPU's and the load power isn't neither. Those aren't with the GPU running as well but as you can see it's taking just under 200W from the wall which means if it's running at 80% efficiency the system is actually demanding only 160W from the PSU.

I used to think just the same like you, oooh will it run this will it run that. I didn't realise you could run quite a bit on even a 300-400w PSU.

Also look at the charts for the older i7 980 and 990 CPU's. They use more power so if a PSU can power the older generation of parts the newer ones will be able to run it on it fine, unless there's a backwards step taken in energy efficiency.
 
moogle said:
Also look at the charts for the older i7 980 and 990 CPU's. They use more power so if a PSU can power the older generation of parts the newer ones will be able to run it on it fine, unless there's a backwards step taken in energy efficiency.
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Agreed, my i7 920 is one of the older more power hungry cpu's, as for the gtx 470's i had in sli, theese were more power hungry than a 3rd world dictator. At 4.0ghz with those cards i was seeing 630w at the wall. 420 now with the same cpu and a gtx 670. My second rig runs an i7 930 @4.0 as well, had gtx 460's in it with a 750w antec, ran without any problems.
 
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