Would I need a Second PSU?

[LiuKangBakinPie]

If you think anything I posted in that post was untrue, then I would say I know a sight more than you do.

Lets take a look at some facts

PC P&C Turbo-Cool 1200w

http://www.pcper.com/article.php?aid=458&type=expert&pid=1

You'll see the review date is October 2007. Over 3 years ago, but it is built on the same platform as the older Turbo-Cool 1kW. So 5 years, perhaps some exaggeration, but the design is still at least 4 years old.

20% load efficiency is 77%
50% load efficiency is 84%
100% load efficiency is 80%

do a google search for what they are selling for still...~$400+


Or he could buy this for less than $300
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=198

Newer design
20% load efficiency 88%
50% load efficiency 90%
100% load efficiency 87%

So that is a newer, cheaper, more efficient and better PSU.

Is there any reason to replace a PC P&C Turbo Cool with the Antec? No
But, why would you buy a new one instead of that?

yOU CANT MAKE THAT ASSUMPTION WITH oops sorry caps lock is on... with psus that was send by a manufacturer to be reviiewed. Plus testing aint normal everyday circumstances. Newer aint more effecient. Give me a test where a 5 yr old psu whos been pulling a 280w load for the past 5 yearss and tell me it wont be effecient. max effeciency is only achieve if the psu runs at 40 to 60 percent of its load. Thats what that numbers mean not coz of age coz they guarentee that but they expect you to run it between 40 to 60 percent.

So bringing up numbers trying to proof newer psus are more effecient due to that is wrong.

 

[LiuKangBakinPie]

what do you mean? CPU? or everything in general? I just upgraded quite a few components in my system over the past 2 months so it's getting ready to demolish the gaming experience!

not saying your lying. What cpu and mobo do you have. Coz im thinking bottleneck for one and pci-e slot spacing. have you looked if the 580 takes up a single or double slot?

 

[HOOfan 1]

So bringing up numbers trying to proof newer psus are more effecient due to that is wrong.

It has nothing to do with the actual age of the PSU.

It has to do with the age of the DESIGN of the PSU.

More years of research leads to designs that are more efficient.
Since 2007 manufacturers have been moving to deriving the 3.3V and 5V from the 12V source as opposed to sending those on their own loops through the transformer. It is a more efficient design.

You are welcome to come on over to http://www.jonnyguru.com/forums/forumdisplay.php?f=3

to discuss this further. I can guarantee you there are at least 5 people who regularly post over there who know MUCH more than either of us about not only PSUs in general, but these two specific PSUs I mentioned.

 

[LiuKangBakinPie]

It has nothing to do with the actual age of the PSU.

It has to do with the age of the DESIGN of the PSU.

More years of research leads to designs that are more efficient.
Since 2007 manufacturers have been moving to deriving the 3.3V and 5V from the 12V source as opposed to sending those on their own loops through the transformer. It is a more efficient design.

You are welcome to come on over to http://www.jonnyguru.com/forums/forumdisplay.php?f=3

to discuss this further. I can guarantee you there are at least 5 people who regularly post over there who know MUCH more than either of us about not only PSUs in general, but these two specific PSUs I mentioned.

lol psus designs havent changed much. just the markerting and the connectors as well as shifting the current over the 12v side and yes its still the same caps and bridges init. And no I know jack about psus. Ill just my High Current electrical diploma as toilet paper

Pc and Power Cool two 1200w versions released in 2007 (not 5 years)

1) 1080 on the 12v 90A on the rail
2) 1200w on the 12 100A on the Rail
http://www.pcper.com/article.php?aid=458
All that changed is the rails that was added by manufacturers and the OCP protection. So your saying 90A on the 12v aint enough, If it s the other version 100A? lol then I dont know

---------------- Now playing: Whitby, Andy & Scott Fo Shaw/Leon B - Hedfunka via FoxyTunes

 

[HOOfan 1]

lol psus designs havent changed much.

I guess that depends on your definition of "much"

The Antec High Current is certainly a different design than the PC P&C

 

[Baasha]

not saying your lying. What cpu and mobo do you have. Coz im thinking bottleneck for one and pci-e slot spacing. have you looked if the 580 takes up a single or double slot?

Right now I have the i7 950 (soon to be replaced with the 990X) OC'd to 4.2GHz and the Asus P6T7 WS Supercomputer MoBo.

The 580 takes up two slots. I have a SuperClocked version right now but just one because I am waiting for the dual GPU card to come out before I decide which one I want to get. Either way, wouldn't I need a second PSU?

Btw, how does the Corsair AX1200 compare to the Antec HCP 1200? If I get the second PSU, it doesn't have to be the same as the first one (PC P&C) right? Which one do you recommend?

Plus, I will be running the 990X OC'd and will OC the 580s as well. So there is no way I can get away with using just one PSU @ 1200W right?

 

[nyker96]

This is some serious monster setup you got here, I'm curious, what resolution are you running your rig at? I mean for NV there's no Eyefinity so you can't be pushing your rez that much higher than 2560s. I wonder if you can utilitize the power of 4x580s unless you are doing massive GPU computing applications.

 

[PreferLinux]

You can use at least three monitors with SLI. Each card supports two monitors (when run on its own), but I'm not sure what happens when you have SLI.

 

[yottabit]

with a hex core overclocked a lot and superclocked cards I'd be worried with your power supply. Core i7 power draw can get really out of hand once you get into the high clocks/volts. Just remember if you get a second power supply it by no means has to be another 1200W, if you got a good 600 W power supply and just powered 1 or 2 cards with it that would be fine. Just remember to look at the current on the 12v rails as that's all you'll be using for the graphics cards. So you'd probably want at least a quality 450W to power one card and probably a 750W to power two.

However, if you decide to go Tri-sli you'll probably be all set, and probably the same if you go for two of the new dual-gpu cards. Dual-gpu cards are normally down clocked to fit within the same power envelope of a single card....

Without the dual-gpu cards being out, I'd venture a guess that having two dual-gpu cards would be only marginally faster (if at all) than a gtx580 tri-sli. That's probably the way for you to go

 

[HOOfan 1]

no you don't have to use the same brand and as yottabit says you don't need another 1200W. But you would be better off getting one that has DC-DC conversion for the 5V and 3.3V because some PSUs REQUIRE that there is a certain amount of load on those rails and if you plan to only use the PCI-E connectors from 1 PSU, those rails won't be loaded.