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Do I need a bigger PSU? - Page 2

post #11 of 18
I don't get why people are recommending you PSUs when you said you already have an OCZ ZX 850W. It's an excellent unit and will easily do what you said. Keep it and get your 580s, you'll be fine.
post #12 of 18
your current psu should be enough for that load
    
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post #13 of 18
Your current PSU is more than enough.
    
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post #14 of 18
i'm sure your current one will suffice but IMO get 1000watt.
you more than likely won't need it all but i think it's worth looking into.
todays tech consumes a lot of power and tomorrows is more than likely going to need more. This is just my opinion so please don't set me on fire for it. 1000watt = just to be safe and better expandability (you could go tri sli if you wanted).
post #15 of 18
Quote:
Originally Posted by Hazzeedayz;14613805 
i'm sure your current one will suffice but IMO get 1000watt.
you more than likely won't need it all but i think it's worth looking into.
todays tech consumes a lot of power and tomorrows is more than likely going to need more. This is just my opinion so please don't set me on fire for it. 1000watt = just to be safe and better expandability (you could go tri sli if you wanted).

I highly disagree with that. I see it posted a lot and can find no logic to it in today's market. think that we reached a peak in power consumption and that we are now headed down. ~300W is realistically the highest power consumption you will see for any video card, and that is going down due to the constant shrinking of processor lithography. Due to that, due to the limitations of the PCIe connector used to power video cards, and based on simple observation, I believe power requirements will, at worst, stagnate, and more than likely will decrease.
post #16 of 18
The ZX850 is perfect for your needs and anyone that says otherwise hasn't read the reviews.
I thought the same a while back because some of OCZ's power supplies aren't the best but the ZX line is decent and a decent 850W will handle 580 SLI with your CPU.

The guy pulling over 850W probably had a more power-hungry CPU and over 850 at the wall mightn't even be over 750W in actual power draw from the PSU.
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post #17 of 18
Quote:
Originally Posted by Shub;14614071 
I highly disagree with that. I see it posted a lot and can find no logic to it in today's market. think that we reached a peak in power consumption and that we are now headed down. ~300W is realistically the highest power consumption you will see for any video card, and that is going down due to the constant shrinking of processor lithography. Due to that, due to the limitations of the PCIe connector used to power video cards, and based on simple observation, I believe power requirements will, at worst, stagnate, and more than likely will decrease.

i definately see that happening as well. We are/will start dropping in power consumption BUT every time a new GPU/CPU comes out for the 'enthusiast', it is normaly a power hog.

back in the day i used to have a 350 psu and that was more than enough for my old school nvidia card, my nic, and sound card.

i do see us hitting a threshhold but there will be times when that extra power will be needed. Personally i figure if i just buy a 1100 watt PSU with a 5 year warranty...i have 5 years to worry about whether or not i need the power or i don't.

Just an opinion and one of my ways of future-proofing the most i can.
post #18 of 18
ihad a 930 @ 4.2 ghz an 2 480s overclock to 850 core on tx 750, the psu would spin for ~5mins after a power own after gaming , i had an ax1200 but that fired a ssd and a platter drive, now i got an ax850 did fine on 480 sli and 930 @ 4.2 ghz. the 480 is ~20-25 more watts then a 580, so with a good psu like farmer boe said u r good but mite want more over head. also 930 is ~ 100 more watts then SB @ overclocks.
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