Anyone know anything about this 2000W psu?

[Rudy Toody]

Lienken.com Digital 2000W V-R

Do you think this would work for a BIG rig? ie, 4 stream processors @ 300 - 400W each.

 

[HOOfan 1]

hmmm.

The unit pictured is almost without a doubt a CWT PSH. Which maxes out at 850W...and isn't really very good for 850W.

There is no way that picture is the one they are advertising as 2000W. They list the 2000W as a dual 12V rail...the only reason a unit of that much power has any excuse for being dual rail instead of single rail, or at least 4 or 6 rails is that it actually has 2 independent 12V rails...which the PSH doesn't. If the 2000W is a CWT, then dual independent 12V rails would suggest it is a PUC...and the highest PUC I have ever seen is 1500W....and the 1500W is not sold in North America because it can't be UL certified...it isn't efficient enough to run at full power on a 15A circuit. I've seen a 2000W sold in the US, but it actually had dual AC plugs. The highest rated single AC plug unit I have seen in the US is the 1600W Ultra X3...and it is only UL certified because it came with a couple of special cables...one that only allows you to use it on a 20A circuit and one that has a breaker in it that will not allow it to draw more than 15A.

If this 2000W PSU is only 80plus certified, which means it only has to be 80% efficient at full load, then it wouldn't even work at full power on a 20A circuit in North America. 2000W/.8= 2500W at the wall 2500/120= 20.83A!!! It would have to be AT LEAST 84% efficient at full load to work on a 20A 120V circuit...and then you couldn't run anything else on that circuit.

Their page doesn't claim 230V operation only...which the 1500W CWT units do.

The first company to insist on Continuous Power for PC power supply

that quote from their website is also complete BS


Basically I am saying...that their claims for this PSU are pretty dubious.

 

[Rubycon]

I would not mind having one to rip open for S&G though.

Speaking of UltraX3 1600 I have one that's been going strong for over two years now. 24/7 load over 60%.

 

[v8envy]

2000 watt output. Cripes. If that wasn't complete bullshit you could use it for welding!

Welding of manly things to other manly things. Like, aircraft to their carriers, deck guns to battleships, battleships to other battleships... The possible uses for this PSU before it got torn apart are endless.

 

[Rubycon]

2000 watt output. Cripes. If that wasn't complete bullshit you could use it for welding!

Welding of manly things to other manly things. Like, aircraft to their carriers, deck guns to battleships, battleships to other battleships... The possible uses for this PSU before it got torn apart are endless.

80A can sustain a small diameter rod carbon arc torch. Those are fun!

 

[Yellowbeard]

LOL...I saw a stereo review YEARS ago where a guy welded with a Krell Monobloc stereo amp. It did not even shut off. Impressive.

 

[Rudy Toody]

Thanks, everyone! I thought it was too good to be true!

Does anyone know if Ultra still makes the 2000W psu. For Europe, maybe?

I was wondering if somehow I could tap into the circuit for the kitchen stove or the clothes dryer. Is this possible?

I am building two of these rigs over the next year and I don't mind unplugging appliances.

 

[v8envy]

Have you considered multiple PSUs instead? Seems like it'd be easier and more reliable to rig that up. An old enclosure housing 5 400 watt single rail units (cough corsair cough) seems like a better way to fly, and you could split those across multiple circuits to avoid melting your house wiring.

http://www.overclock.net/power-supplies/14455-multiple-power-supply-guide.html

Check that out for ideas. Probably won't be able to weld stuff that way, though.

 

[Rubycon]

LOL...I saw a stereo review YEARS ago where a guy welded with a Krell Monobloc stereo amp. It did not even shut off. Impressive.

They won't shut off because there is no protection relays! (as a high current design SHOULD be!) They are current limited by design but the limit is on the primary side (meaning your house circuit breaker/fuse will open in an overload!). Good with difficult loads. Some subwoofer designs intentionally drop their impedance where the roll off point starts so they draw more current from the amp. This flattens the frequency response and can be viewed as a form of passive equalization. Unfortunately without an amp that can handle it (or one that's truly regulated) the amp will either cut out or the bass will not sound very good. (current clipping)

 

[Red Squirrel]

Holy crap, you need a 20 amp dedicated circuit for a PC now? LOL.

 

[Rudy Toody]

Have you considered multiple PSUs instead? Seems like it'd be easier and more reliable to rig that up. An old enclosure housing 5 400 watt single rail units (cough corsair cough) seems like a better way to fly, and you could split those across multiple circuits to avoid melting your house wiring.

http://www.overclock.net/power-supplies/14455-multiple-power-supply-guide.html

Check that out for ideas. Probably won't be able to weld stuff that way, though.

I want a psu that fits completely inside the case. It's the challenge I am looking forward to.

i could use the Ultra 1600W psu, but then I wouldn't be able to overclock the gpus.

The last thing I buy for the builds will be the psus. Maybe something will be available by then.

I still think using the dryer circuit could have merit. I just don't know if it is practical.

 

[HOOfan 1]

As far as I know, the Ultra 2000W was never a production unit and was just a technology demonstrator.

As for using a 240V dryer outlet....check this out http://www.jonnyguru.com/forums/showthread.php?t=3947&highlight=220V+dryer

 

[Rudy Toody]

As far as I know, the Ultra 2000W was never a production unit and was just a technology demonstrator.

As for using a 240V dryer outlet....check this out http://www.jonnyguru.com/forums/showthread.php?t=3947&highlight=220V+dryer

Thank you very much. That is just the ticket for my setup.

 

[Rubycon]

Any two pole circuit will work. Check your local codes! In some places it's OK to use 12/2 and tape the white wire with black tape. A 15A 240V outlet is plenty. Most residential dryers run on 30A 240V single phase circuits. The heating element is 5.5kW and drum motor is 1/3 hp (120V shaded pole usually).

 

[JEDIYoda]

Any two pole circuit will work. Check your local codes! In some places it's OK to use 12/2 and tape the white wire with black tape. A 15A 240V outlet is plenty. Most residential dryers run on 30A 240V single phase circuits. The heating element is 5.5kW and drum motor is 1/3 hp (120V shaded pole usually).

I just Love it when you talk all techie to me.......