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Which PSU PC P+C 1kw or ultra x4 1200w

post #1 of 10
Thread Starter 
I have in my possession a PC Power and Cooling 1kw single rail PSU. It is from 2006-2008 not sure exact date. It is HUGE weighs a ton and is not quite. Secondly I have a Ultra x4 1200w PSU it is half the size ways less than half is for the most part silent and most importantly it is modular.

My question is which one should I keep and use. Although a pain in my ass the 1kw will fit in my case and if I keep it I will re-sleeve it and probably shorten up the cables.

The reason why I am wondering is with the ultra x4 being half the size and weight I feel there must be more quality in the PC P+C PSU and although I don't understand the importance of all the things that are tested in reviews I find it obvious they must matter. So that said is either of these power supplies significantly better than the other?

I bought the 1kw a long time ago as a replacement to my 550w turbo cool SLI PSU.


Also in case it matters I am at the moment using a gtx670 3 7200 rpm drives 1 5400 and an ssd. 2 water cooling pumps a sabertooth motherboard and a 960t x6 at 1.39v.

Hopefully no one asks why such a big PSU but in case someone does ask I find that it costs a lot less money to buy a 1kw PSU than to buy a 600w a 750w and then a 1000w PSU in other words why buy what will barely get me bye when I can just buy 1 PSU and never have to upgrade.
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post #2 of 10
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post #3 of 10
Well, since your computer literally puts almost no load on either of them- I'd say the Ultra X4 if you like it more for its modular cables and quiet cooling. Just keep in mind that the PC P&C 1K is probably the stronger unit overall- power supplies tend to be one of those "light weight usually means bad" things, or at least it was- but that's just my 2 cents. Either way, best wishes with the build.

EDIT: On a side note; yes, they may be a little expensive nowadays, but a high quality 750W can pretty much handle most systems- 850W if you want to be safe. Even a 650W that's a good unit would easily, easily, handle any single GPU setup and overclock. Older, bigger 1kW power supplies probably aren't quite equal to newer 750+, with all the 80+ efficiency and reduced temperatures/ripple stuff.

That and capacitors do age, which causes the unit to weaken over time- increased/decreased affect based on running conditions.
Edited by mezmenir - 9/4/12 at 6:36pm
    
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post #4 of 10
I got this info by following this link:
http://www.overclock.net/t/738097/psu-review-database#post9426914

Here is teh Ultra : Warning: Spoiler! (Click to show)
Performance (40% of the final score) - the Ultra X4 1200 watt model started off with a bang and ended with a resounding thud. Yes, it did the whole one thousand two hundred watts of rated power. But it was hardly without issue. First, we saw efficiency numbers so embarrassing they left me wondering how this unit could have ever passed 80 Plus standard, let alone Bronze. Then, due to a fair sized gap between the 12V maximum capacity and the total rated capacity, we saw some not so good voltage stability from the 3.3V and 5V rails due to the need to max them out to get up to full power. Last but not least, we have a unit that was only too happy to exceed ripple specs at 12V for several seconds before the overtemp protection was able to kick in and shut the unit down. There are a few good points about this unit, like the overshoot transient protection, the ripple suppression, and the 12V regulation, but for the most part it's all overwhelmed by sheer blandness. This unit gets a 5 for being so... well... so-so when everything is taken into consideration.

Functionality (20% of the final score) - if the performance score of this unit is worthy of a big point smackdown, the functionality score is going to be the exact opposite. Why? Well, not too many companies do modular like Ultra, who holds the patent on it. Every last cable is neatly and obsessively sleeved, each with its own little velcro cable tie. If you need to pull the main ATX cable off, you can. There's no chance of mixing up the connectors on the back of the unit. There are tons of connectors for every possible combination of parts this unit is able to run, and yes, Virginia, you can run three way SLI on this unit without worry because you'll not be able to hit 1200W with a modern 12V based rig on this unit. 10.

Value (30% of the final score) - Provantage is currently offering these for $256.56. Yes, folks, for the low low price of two hundred, fifty-six dollars and fifty-six cents, you too can own a 1200W power supply with 1020W of useable 12V capacity for your very own. Just... don't pay any attention to that BFG EX-1200 over there, which uses a superior Andyson built platform to this one. No, it's not forty two bucks cheaper, you're seeing things. No, the 80 Plus Gold rated OCZ Z series unit over there isn't seven smackers cheaper either. 5.

Aesthetics (10% of the final score) - I have to admit, the looks of this unit are the best thing it has going for it. I have to do a 10 here, I just have to.

Performance

5

Functionality

10

Value

5

Aesthetics

10

Total Score

6.5

Summary

The X4 series is Ultra's attempt to freshen up the X3 line by adding 80 Plus certification among other things to the aging X3 lineup. While this unit's performance is in no way indicative of the rest of the product line, and the big 1600W monster is likely still pushing its own special platform that has proven to be absolutely awesome at other sites, I have to say I am disappointed by this unit. It is a good thing the 1200W model is not the flagship of Ultra's fleet, because this one's barely holding itself above water.

The Good:

good ripple and noise suppression
did 1200W
extremely flexible cabling
lifetime warranty
ran at full power well above rated operating temperature
overshoot transient suppression well above average
The Bad:

somewhat sloppy build quality
no overtemp shutdown until it was almost too late
one must run the combined 3.3V and 5V rails almost wide open to get to 1200W
The Mediocre:

efficiency below standard 80 Plus certification

I don't know enough about the PC P&C to say anything about it.
post #5 of 10
Thread Starter 
Quote:
Originally Posted by mezmenir View Post

Well, since your computer literally puts almost no load on either of them- I'd say the Ultra X4 if you like it more for its modular cables and quiet cooling. Just keep in mind that the PC P&C 1K is probably the stronger unit overall- power supplies tend to be one of those "light weight usually means bad" things, or at least it was- but that's just my 2 cents. Either way, best wishes with the build.

EDIT: On a side note; yes, they may be a little expensive nowadays, but a high quality 750W can pretty much handle most systems- 850W if you want to be safe. Even a 650W that's a good unit would easily, easily, handle any single GPU setup and overclock. Older, bigger 1kW power supplies probably aren't quite equal to newer 750+, with all the 80+ efficiency and reduced temperatures/ripple stuff.

That and capacitors do age, which causes the unit to weaken over time- increased/decreased affect based on running conditions.

Quote:
Originally Posted by ./Cy4n1d3\. View Post

I got this info by following this link:
http://www.overclock.net/t/738097/psu-review-database#post9426914

Here is teh Ultra : Warning: Spoiler! (Click to show)
Performance (40% of the final score) - the Ultra X4 1200 watt model started off with a bang and ended with a resounding thud. Yes, it did the whole one thousand two hundred watts of rated power. But it was hardly without issue. First, we saw efficiency numbers so embarrassing they left me wondering how this unit could have ever passed 80 Plus standard, let alone Bronze. Then, due to a fair sized gap between the 12V maximum capacity and the total rated capacity, we saw some not so good voltage stability from the 3.3V and 5V rails due to the need to max them out to get up to full power. Last but not least, we have a unit that was only too happy to exceed ripple specs at 12V for several seconds before the overtemp protection was able to kick in and shut the unit down. There are a few good points about this unit, like the overshoot transient protection, the ripple suppression, and the 12V regulation, but for the most part it's all overwhelmed by sheer blandness. This unit gets a 5 for being so... well... so-so when everything is taken into consideration.

Functionality (20% of the final score) - if the performance score of this unit is worthy of a big point smackdown, the functionality score is going to be the exact opposite. Why? Well, not too many companies do modular like Ultra, who holds the patent on it. Every last cable is neatly and obsessively sleeved, each with its own little velcro cable tie. If you need to pull the main ATX cable off, you can. There's no chance of mixing up the connectors on the back of the unit. There are tons of connectors for every possible combination of parts this unit is able to run, and yes, Virginia, you can run three way SLI on this unit without worry because you'll not be able to hit 1200W with a modern 12V based rig on this unit. 10.

Value (30% of the final score) - Provantage is currently offering these for $256.56. Yes, folks, for the low low price of two hundred, fifty-six dollars and fifty-six cents, you too can own a 1200W power supply with 1020W of useable 12V capacity for your very own. Just... don't pay any attention to that BFG EX-1200 over there, which uses a superior Andyson built platform to this one. No, it's not forty two bucks cheaper, you're seeing things. No, the 80 Plus Gold rated OCZ Z series unit over there isn't seven smackers cheaper either. 5.

Aesthetics (10% of the final score) - I have to admit, the looks of this unit are the best thing it has going for it. I have to do a 10 here, I just have to.

Performance

5

Functionality

10

Value

5

Aesthetics

10

Total Score

6.5

Summary

The X4 series is Ultra's attempt to freshen up the X3 line by adding 80 Plus certification among other things to the aging X3 lineup. While this unit's performance is in no way indicative of the rest of the product line, and the big 1600W monster is likely still pushing its own special platform that has proven to be absolutely awesome at other sites, I have to say I am disappointed by this unit. It is a good thing the 1200W model is not the flagship of Ultra's fleet, because this one's barely holding itself above water.

The Good:

good ripple and noise suppression
did 1200W
extremely flexible cabling
lifetime warranty
ran at full power well above rated operating temperature
overshoot transient suppression well above average
The Bad:

somewhat sloppy build quality
no overtemp shutdown until it was almost too late
one must run the combined 3.3V and 5V rails almost wide open to get to 1200W
The Mediocre:

efficiency below standard 80 Plus certification

I don't know enough about the PC P&C to say anything about it.

Again like I said I really never want to have to worry about the power supply being the weak link. I got both for amazing deals. The PC P+C was ~100 because its name was mislabeled on ebay. They have a solid background of performance and are always rated at what they can do at peak operating temperature and usually weigh more than twice what an equivalently numbered psu weighs. Also I have had dual GPUs multiple times which I know still isn't enough to load it but piece of mind that I will never overload it is nice.

The x4 was open box as the tigerdirect shipping warehouse in naperville IL and I knew the manager and was able to secure it for $120 which is how I cam across that PSU.

That being said after reading what mez has to say about not needing anything more than a 650 and the review that cy4 posted I think I will keep the x4 installed.

The review negative points mostly revolved around how it didn't really hit 1200w without completely loading the low voltage rails so its more like a 1000-1100w and that it didn't really earn its

One of the positive points where that it had good ripple and noise suppression.

So I guess I will keep that installed for now.

Thanks!
Edited by givmedew - 9/5/12 at 10:21am
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post #6 of 10
I'd personally sell both and get one better one that is better suited for you.
post #7 of 10
Quote:
Originally Posted by deafboy View Post

I'd personally sell both and get one better one that is better suited for you.

Well this is what I was thinking, a good Corsair AX or Seasonic X Gold (same PSUs, get whichever you can find cheaper) would last you a very long time- and you wouldn't have to worry about as much going wrong. That and their ripple control is -excellent-, your system is only as good as the source that feeds it, yeh?

If you must though, and you -don't- want to worry, I'd have to vote for the PC P&C unit, I've heard too much hate regarding Ultra- and personally know that PC P&C definitely made a mean PSU in the day. But that would make it a subjective choice, I guess. /fanboyism. thumb.gif

Edit: but I still stand by my first post- if you like the Ultra, it probably won't have too many issues, you're not going to overload it with those components. The PC P&C would definitely take more abuse, though.
Edited by mezmenir - 9/5/12 at 10:24am
    
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post #8 of 10
Thread Starter 
The link for the 1KW http://www.pcpower.com/power-supply/turbo-cool-1kw-sr.html

It is rated at 83% efficiency and 1% ripple.

Also I plan on buying a second GTX670 and am going to be running 4 normal HDs and 1 SSD not sure if that really matters too much.


Edited by givmedew - 9/5/12 at 10:28am
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post #9 of 10
An AX750 will do you fine, hell even a 650 would be fine.
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post #10 of 10
My components drink electricity, and my PSU is only a 750, so- you should be safe, even with a second 670. Kepler is a lot more efficient than Fermi, that would be my only point for upgrade these days, least till Maxwell.

The P&C -should- be fine.

(Note, I also use 4 HDD, 1 SSD, and some fairly power hungry cooling.)
    
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