whats the difference???

mickeyfinagin

mickeyfinagin

mickeyfinagin

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Aylesbury
I am still sorting my final spec out for a new build.

Decided on the Coolermaster CM-690 II Advanced Dominator Case or the Nvidia special if my funds allow.

was going to use a Antec Modular 650W power supply but someone suggested a
XFX Pro 750W Core Edition Power Supply if I wanted to go sli with 2GTX570's in the future.

the antec Antec TruePower New Modular 650W Power Supply has jumped up £20

what is the difference between a modular power supply and a non modular power supply
 
Modular has, The Antec has a couple of hardwired cables anyway, so it could be called partially modular.
 
As stulid says, modular PSUs have the detachable cables.

Hence the Antec you mention has detachable cables and the XFX has fixed cables.

Edit: beaten to it
 
thanks once again.
Trying to learn as much as possible before my final spec.
this site is so good.
Im sure i will have loads of other daft questions to ask you all.
be patient with me .Ha ha
 
stulid said:
Thats it, next "spec me" thread I see, that needs a 750w psu, that ADATA is going in.
Click to expand...

Yea, it does look like a nice supply.

That said, If I was buying new and my budget was a bit flexible - I would go for the Corsair HX 750W for £20 more. For that £20 you get 4 years more warranty, higher efficiency and a known quantity.
 
Will be less than the GTX470sli result.
34663-1.png
 
Thanks guys (sorry if i'm hijacking the thread) I was looking to maybe go to 570SLI and was wondering if I'd need to up my PSU.

GeForce GTX 570 in 2-way SLI

* A second card requires you to add another ~225 Watts. You need a 750+ Watt power supply unit if you use it in a high-end system (800+ to a KiloWatt is recommended if you plan on any overclocking).
Click to expand...

Sort of what I was thinking. I would probably get a 1000W PSU if I went with 570SLI to give myself a bit of headroom, plus my CPU is overclocked.

The other thing to remember is that a 750W PSU probably wont pump out 750W on the 12v rail, may be more like 740W or less depending on the brand.

My 850W for example only does something like 768W on the 12v rails.
 
As suggested by the text in the quote - each card only uses ~219W at maximum load. So two will need ~438W at maximum load on the 12V rail. As mentioned by the posters above, a good quality 750W will happily deliver this (and more).

The 750W+/800W+ mentioned is to ensure that people who chose sub-par PSUs will still be able to run these cards, while a quality 750W unit will have no trouble running two of these and an overclocked CPU.

May I ask what make and model PSU your 850W is?
 
Using the Calculator linked to from the Antec page it think I'd need about 970W for 570SLI (with 25% ageing as it's over a year old).
I'm running an i5 750 @ 3.8GHz btw.
Also 4 DIMMs, 2xHDDs, 1xDVD-RW, 1xBlu-Ray, Creative soundcard, fan controller, 3x250mm fans, 1x140mm, 2x120mm (High Perf)
 
I would suggest against using a calculator provided my the very people that profit from selling you a high-spec PSU. Have a go with this calculator and see how you do.

When I run it through with your specs it says the "Minimum PSU Wattage" is 813W, and this assumes everything is at full load (which never really happens anyway).
 
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