Best 1,000 WATT Power Supply ???

[Chess Gator]

Hello,

What is the best 1,000 WATT power supply? Any reviews to support your choice?

Thank you,

Chess Gator

 

[JEDIYoda]

Originally posted by: Chess Gator
Hello,

What is the best 1,000 WATT power supply? Any reviews to support your choice?

Thank you,

Chess Gator

You need to do your own homework....
That word best is very misleading.
Almost all 1k PSU`s are very good!
The reason that word best is very misleading is because some people don`t care about if the PSU is noisy or not...
Others don`t even look at newer brands because they want a PSU from a company that has a real good track record...
Others only look at PSU`s that are 80plus certfied.......yet to be 80plus certified the individual company has to pay a fee for the testing.....
There are way too many things involved in deciding whats the best!
Regardless of what reviews state or not .....things are very subjective...
Even if all PSU`s were tested under the exact same condictions and the noise issue was a non issue iether way you would still only academically have the best PSU on paper.
Which doesn`t exactly mean that everybody will run out and just buy that particular brand!

 

[Chess Gator]

Hi, put it this way, if YOU were going to buy a 1,000 WATT psu for a high end server/workstation, which PSU would you take, based on your knowledge and preference.

Thank you,

Chess Gator

 

[Goldfish4209]

Wait, let's go back a step. Do you really need that much power? What is your configuration you're running/planning to run? I doubt that you really need that much power.

 

[Sheninat0r]

The PC Power and Cooling Turbo-Cool 1kW is pretty nice, as is the Ultra X3 1000W. The Ultra mainly has looks going for it, and the PCPC has its brand name going for it - unfortunately, it only uses 80mm fans so its louddddd

 

[Rubycon]

What kind of chassis is this going into? A server chassis may not have the bottom open or sufficient well clearance for power supplies with a large fan in the bottom. This is where the 80mm push pull config works best and is what you see on a server design. Loud? Yes but personal comfort comes second to availability with a server.

 

[biostud]

just what you are looking for:
http://www.xbitlabs.com/articl...0-1kw-psu-roundup.html

 

[Chess Gator]

Originally posted by: Rubycon
What kind of chassis is this going into? A server chassis may not have the bottom open or sufficient well clearance for power supplies with a large fan in the bottom. This is where the 80mm push pull config works best and is what you see on a server design. Loud? Yes but personal comfort comes second to availability with a server.

Hi Ruby, I still haven't made a purchase, but I am considering the Silverstone Temjin TJ10 case, what do you think? Will any PSUs have a problem with this Pedestal case?

http://www.silverstonetek.com/...nts.php?pno=tj10&area=

 

[Chess Gator]

Originally posted by: biostud
just what you are looking for:
http://www.xbitlabs.com/articl...0-1kw-psu-roundup.html

Sweet, just published too! I will take a read, the article looks huge!

 

[Rubycon]

They should fit however beware if the clearance to the fan is too tight it can restrict airflow. The PCP&C supply will work fine though. Don't skimp on the watts! Just because a system draws "only" 345W a 400W power supply will cut it. There is nothing wrong with using a 1kW or even larger power supply in such a scenario.

 

[JEDIYoda]

Originally posted by: Chess Gator

Originally posted by: biostud
just what you are looking for:
http://www.xbitlabs.com/articl...0-1kw-psu-roundup.html

Sweet, just published too! I will take a read, the article looks huge!

also that 1k roundup did not address many of the 1k PSU`s on the market...it`s lacking but still a good starting point!

 

[Chess Gator]

Originally posted by: Rubycon
They should fit however beware if the clearance to the fan is too tight it can restrict airflow. The PCP&C supply will work fine though. Don't skimp on the watts! Just because a system draws "only" 345W a 400W power supply will cut it. There is nothing wrong with using a 1kW or even larger power supply in such a scenario.

Hi Ruby,

The PCP&C is louder than a leaf blower, as per Jonny Guru Which is confirmed in the reviews at NewEgg.com

To make it easier, I am considering the following two 1KW PSUs:

Enermax Galaxy DXX 1000 CrossFire

AND

Coolermaster 1000W Real Power Pro

Does anyone have an opinion on either, or any other 1KW PSU ?

Thank you,

Chess Gator

 

[Rubycon]

Ultra X3 1kW, Thermaltake Toughpower 1200W, Ultra X3 1.6kW. All are very quiet and feature lots of clean power.

 

[Sheninat0r]

Both of those PSUs are very nice, but the Galaxy was one of the earlier 1kW PSUs on the market - not to say it's not a good PSU, but there's better. The main caveat for both of those PSUs is the fact that they have multiple 12v rails - six of them, in fact, in the Cooler Master one. The problem with having multiple 12v rails and large loads is that the load is unevenly distributed - meaning that if one rail with 20A has a only graphics card attached to it which draws 13A, the remaining 7A cannot be used by the rest of the computer. With a single 12v rail, all of the available amps/watts are available at all times to anything that needs to draw 12v current. If you can spread the load evenly or if the loads are spread evenly over the rails, that's less of an issue, but if you're running SLi or Crossfire and both graphics cards are on one rail then things can get dirty.

Both of the units you picked are quieter than the PCPC 1kW, I'm pretty sure. Really, it's like JEDIyoda said - all 1kW PSUs are good, but some are better than others. You need to set your priorities and pick based on that, as there is no definite "best" when it comes to power supplies.

 

[VirtualLarry]

Silverstone makes a decent 1000W unit I believe.

 

[Chess Gator]

Originally posted by: Sheninat0r
The main caveat for both of those PSUs is the fact that they have multiple 12v rails

I believe all the 1KW PSUs have multiple rails, must not be possible to have just one rail.

 

[Chess Gator]

Originally posted by: Rubycon
Ultra X3 1kW, Thermaltake Toughpower 1200W, Ultra X3 1.6kW. All are very quiet and feature lots of clean power.

Hi Ruby, that is to much power for my needs 1KW is plenty!

P.S. what is a nice gurl like u doing in a place like this ?!

 

[MrOblivious]

Originally posted by: Sheninat0r
Both of those PSUs are very nice, but the Galaxy was one of the earlier 1kW PSUs on the market - not to say it's not a good PSU, but there's better. The main caveat for both of those PSUs is the fact that they have multiple 12v rails - six of them, in fact, in the Cooler Master one. The problem with having multiple 12v rails and large loads is that the load is unevenly distributed - meaning that if one rail with 20A has a only graphics card attached to it which draws 13A, the remaining 7A cannot be used by the rest of the computer. With a single 12v rail, all of the available amps/watts are available at all times to anything that needs to draw 12v current. If you can spread the load evenly or if the loads are spread evenly over the rails, that's less of an issue, but if you're running SLi or Crossfire and both graphics cards are on one rail then things can get dirty.

This is unfortunately a commonly quoted piece of FUD.

Here is how it really works.

Look at this power supply and assume it really is a multirail OCP limited unit: http://www.newegg.com/Product/...k+Modular+Power+Supply

We see it has a 12v capacity of 64A yet each of the 6 12v rails is rated for 20A. Well if we just add that we get 120A. 120Ax12v=1440w which certianly is not possible from a 800w power supply that we know is capped at 64A on the 12v rails. Because of this there is more capacity on each individual rail than is generally neccesary for any device that will be on that rail and there is no real issue with running out of capacity on a given rail because the sum of the rails is greater than the real total cap as we have just seen. So is power really trapped...well no not really since if 12v1 needs 20A it can draw 20A even if 12v2 is capable of 20A but is unloaded or lightly loaded. This can occur in any arrangement of required power across the 6 rails up to the 64A cap in total and up to the 20A OCP limit for each rail. So power never real stays anywhere as it is not being delivered unless the components draw it in which case the power supply delivers the neccesary amount and then it is governed by the same limits as a single 12v rail in regards to OCP.

 

[MrOblivious]

Originally posted by: Chess Gator

Originally posted by: Sheninat0r
The main caveat for both of those PSUs is the fact that they have multiple 12v rails

I believe all the 1KW PSUs have multiple rails, must not be possible to have just one rail.

The vast majority of power supplies 1kw and not are single rail units limited by a virtual rail delineated by an OCP circuit. So you can argue one way or the other if they are single 12v rail or not but the majority have a single 12v transformer, etc.

Some examples of 1KW units that do not have OCP circuits to current limit virtual rails (or in the case of multi12v designs like the Thermaltake and Enermax real seperate 12v rails)

All Topower 1KW
Ultra X3*
Turbo-cool*
SilverStone Olympia

 

[Chess Gator]

Originally posted by: MrOblivious

Hi Paul,

What do you feel the best 1KW PSU would be for someone with their workstation/server located in their personal residence?

Thank you

Chess Gator

 

[JEDIYoda]

Originally posted by: Chess Gator

Originally posted by: MrOblivious

Hi Paul,

What do you feel the best 1KW PSU would be for someone with their workstation/server located in their personal residence?

Thank you

Chess Gator

So how many forums does this make that you have posted this very same question?

I am not trying to be mean but as I said in an earlier post...there is no clear cut best 1k PSU.....also depending in the forum you go to you will get different answers....can they all be right?
Of course in there mind they are right.
Again there are a whole lot of different things to look at.

You really need to read the reviews yourself and make your own decision!!

Peace!

 

[Sheninat0r]

I'm not saying that a 12v rail won't get 20A if it needs 20A, I'm saying that if you have a multi-rail PSU which has, for example, both PCI-e connectors on one rail that need to supply 25A to the graphics cards, you're not getting 25A off of a rail that can give 20A.

 

[MrOblivious]

Originally posted by: Sheninat0r
I'm not saying that a 12v rail won't get 20A if it needs 20A, I'm saying that if you have a multi-rail PSU which has, for example, both PCI-e connectors on one rail that need to supply 25A to the graphics cards, you're not getting 25A off of a rail that can give 20A.

20A x 12v =240w

What pairing of video cards with the correct PCI-E connectors is going to pull more than that when the 6 pin PCI express connector is limited to 75w? Even if you have two you are looking at 75w+75w=150w or 12.5A.

If you have an 8 Pin it is limited to 150w so if you have 1 8 pin and 1 6 pin on the same 20A rail you are looking at 225w or 18.75A.

The only combination that could be a problem would be 2 8 pins on the same rail. However, I have not seen a power supply with 2 8 pins on the same 20A rail.

 

[djnsmith7]

Originally posted by: VirtualLarry
Silverstone makes a decent 1000W unit I believe.

I liked the reviews I read about this PS & decided to pair it up with my Stacker 832...Haven't done the install yet, but everything should be fine...

 

[Scottae]

My Opinion is based on my extreme use of my PSU is the Silverstone Olympia 1000W single rail and not very loud. I have A Q6600@4ghz Dual 8800Gtx's 4 Gb Ram, 5 HDD (two of are raptors), 6 Silenx 120mm fans, 3DVD drives, Two water Pumps, and a 226W TEC unit all powered off the PSU and it never flinched...SO.. that is all the proof i need. But it is your money you really need to do the research yourself... and Just because a PSU is good for my needs doesnt mean it will work well for you...