Why Settle for 1500W When You Can Get 2000W in a 20 cm Long PSU?

[Fourstaff]

http://www.expreview.com/topic/img/news/2013/09/16/20130916101430.jpg

Single 12V rail.

And where is the problem?

 

[Frick]

And where is the problem?

166A on a single rail. That is seriously welder territory. In the words of oklahomawolf of jonnyguru fame:

Say you have a hard drive. Say this hard drive has a bad SATA connector, causing a partial short. Say you have a single 12V power supply with a massive 90A 12V rail. Say this power supply's overcurrent protection doesn't trip when the short happens. Say you, say me. Say it together... er, sorry. Anyway, my point is this: in this scenario, the power supply won't shut down because it doesn't think there's a short. It will keep going. The outcome? Smoke. This actually happened to someone recently on one of the forums I frequent.

Then you'd have massive power where it shouldn't be. Yes it's rare, but to have an arc welder inside your computer case is just not necessary.

 

[Fourstaff]

166A on a single rail. That is seriously welder territory. In the words of oklahomawolf of jonnyguru fame:



Then you'd have massive power where it shouldn't be. Yes it's rare, but to have an arc welder inside your computer case is just not necessary.

Now that you mention welder strength current, I am quite interested in seeing reviews now, especially the ones which try to pull full load

 

[Frick]

Now that you mention welder strength current, I am quite interested in seeing reviews now, especially the ones which try to pull full load

Aye same here. You'd need serious equipment for that though, and I hope crmaris has that equipment because I want to see 2kW in action!

 

[qubit]

http://www.expreview.com/topic/img/news/2013/09/16/20130916101430.jpg

Single 12V rail.

I generally prefer single rail, but that's an awful lot of current on just one rail. I can just picture a scenario where something isn't quite right and the thing goes up in smoke, or potentially causes a fire.

 

[Prima.Vera]

2K Wats full load? Easy. Just use a server mobo with dual octo-Xenons, 128 or more GB of RAM, 4 top Professional Videocards and HDDs until you got full load...
Actually I would really like to see a review of those 2K Watt power sources on full load and more.

 

[ThE_MaD_ShOt]

Hasn't this psu been in use since the 70's in electric chairs?

 

[HumanSmoke]

Hasn't this psu been in use since the 70's in electric chairs?

I know your post is likely sarcasm, but just for the record, electric chairs (the execution device, not that other American icon) pull around 7-12 Amps

 

[Arctucas]

Oh you americans with your inferiour electricity. 1600W.. Hah!

Here in America, any competent electrician can install a 240V circuit and receptacle outlet to plug it into...

 

[Arctucas]

This 2000w PSU is for PC enthusiasts who are arc welders by day and PC enthusiasts by night...

You had better be plugging this into a 50 amp. wall outlet or you'll just pop the breaker constantly.

http://www.expreview.com/topic/img/news/2013/09/16/20130916101430.jpg

<SNIP>

25 Ampere breaker at 120V, 20 Ampere breaker at 240V.

 

[Aquinus]

Here in America, any competent electrician can install a 240V circuit and receptacle outlet to plug it into...

25 Ampere breaker at 120V, 20 Ampere breaker at 240V.

I think you need to read my previous post again in case you missed it. US 240v is split-phase, not single phase.

 

[The Von Matrices]

25 Ampere breaker at 120V, 20 Ampere breaker at 240V.

At least in the U.S. 20-ampere 120V outlets are pretty common in commercial establishments. I don't see why a competent electrician can't install one in a residence and use that circuit for only the power supply. 2000W, even when the voltage is low at 110V, is only 18.2A. The power supply would have to be less than 90% efficient at full load to trip a 20A circuit breaker at 110V, so it should be more than enough. Why a 20A 120V cord wasn't included is another question worth answering. Maybe the supply is limited to draw only 15A at maximum for safety reasons, no matter what cord you plug into it.

I think you need to read my previous post again in case you missed it. US 240v is split-phase, not single phase.

Completely true, but I don't see that as a problem. I just spent 30 minutes looking up power supply installations and it looks like many businesses that have small server rooms use split phase 240V with no issues at all. There are also threads in multiple forums with people experimenting with 240V split phase for their computer power supplies without problems. This might have been a problem when passive PFCs were common, but modern power supplies with active PFCs like this one can accept any combination of 90-265V and 50-60Hz without issue. I do realize that split phase is similar to double the frequency of single phase, but from this reading I infer that as long as the power supply is insulated and grounded and has an active PFC split phase power should be no hazard.

 

[cdawall]

I have run mine off of split phase 240v without issues...

 

[Jetster]

lawd Jesus

 

[Aquinus]

I have run mine off of split phase 240v without issues...

Oh really? I would like to hear/see more.

 

[Behemot]

It's a matter of how the PSU is designed internally. The PSU expects neutral to be a constant 0v, but in split phase, it's always changing. It's the opposite of the other phase, as opposed to a steady 0v.

So even if the resultant output of split-phase looks a lot like that blue line on the bottom image, it's not working the same way to achieve that output. I don't think I would be willing to try it out.

It won't be a problem. SMPS does not use AC, it first rectifies it to DC. If you look at the graph, turn the bottom waves over 0 line and add them, you will get the same wave with double the amplitude. Only difference compared to European grid will be (despite slightly higher voltage) higher frequency of the ripple (60 vs 50 Hz).

 

[Morgoth]

i can see photonicinduction toying with this new psu

 

[Steevo]

Oh you americans with your inferiour electricity. 1600W.. Hah!

Thanks jerk!!!




Here I sit with my rock solid 750 waiting for the day I can upgrade.:shadedshu

 

[johnspack]

Just add a 2nd one like I did! 1650w here... unfortunately I need it....

 

[Arctucas]

I think you need to read my previous post again in case you missed it. US 240v is split-phase, not single phase.

Ever heard of a transformer?

 

[Arctucas]

<SNIP> 2000W, even when the voltage is low at 110V, is only 18.2A. <SNIP>

<SNIP>

National Electric Code

210.20(A) Continuous and Noncontinuous Loads. Where a branch circuit supplies continuous loads or any combination of continuous and noncontinuous loads, the rating of the overcurrent device shall not be less than the noncontinuous load plus 125 percent of the continuous load.

Therefore, a 20 Ampere breaker is undersized and the next largest breaker (25 Ampere) must be used.

Also, per Table 310.15(B)(2)(a) and 240.4 (E) thru (G), 10AWG copper conductors must be used.

 

[klepp0906]

To quad-SLi GTX 480s. Apparently two of them can shut down an 850w PSU with an LGA 1366 processor.

^Also FX-9590

that's a negative. I ran 3 overclocked with a i7 950 also overclocked on a 850w corsair hx

Im damn certain it was working its rear off though Once I got my 1500w supernova I ran 4 without breaking a sweat.

the end

 

[Atomic77]

This would be good for people who wanna keep there computer and keep upgrading with out ever having to worry about a big enough psu till something that needs that much comes along.

 

[Solaris17]

but will this PSU let my super computer play crysis?

 

[Go To Sleep]

2000 seems a bit too much. 1500w is enough.