They're fantastic when they work. I might have been unlucky and received a bad batch. They were all Rev 02f, might be good to note. The only thing I don't like is they suffer from a vdroop of about 0.2-0.25v under load. They're factory set to 12.29v which gives a voltage very close to 12v under load, and can be adjusted up to 12.4-12.6v before vdroop depending on the unit. They can be used in load sharing mode with up to 8 units, so you have a lot of flexibility. I've migrated my farm to using all PFE1100 plat PSUs or these 1200w plat PSUs. Only exception is my 162 chip S7s, they're on DPS2000 to get the highest voltage into them as possible to OC them as much as possible. (12.7-12.9v from my best DPS2000s)

In the ATX world, Seasonic, Flextronic, Superflower and Delta are king. They make the majority of high quality PSUs sold by Corsair, EVGA, Antec, etc.

With server PSUs, Delta is king, but really you can't go wrong with any server PSU brand. The only issue as mentioned by QuintLeo is that you have to buy them used, generally on eBay, and have no idea how they were used. You might only get a month out of them, or they might last for 5 years running 24/7 maxed out. To give you an idea, I purchased 20x 1200w server PSUs (same PSUs as kilo linked to but a step up, platinum versions) before Christmas from eBay and 9 were DOA with 2 more that died after about 2 weeks of use. Still have 3 to load test, so that leaves me with only 6 known good out of 20 so far. Not very good! But when they work, they're better than anything ATX.

4080w x 0.89 = 3631w DC, so you were still under the 4000w spec.

I've run 2 DPS2000 for about a week pulling 4500w DC from them and they didn't even blink. They are super tanks, massively overbuilt. The fact that you can adjust the OCP protection up to 196A via a trim pot should give you an idea.. These guys were overbuilt and under speced to 2000w in order to get higher efficiency I believe. When you're running at 100% 2000w capacity, it's likely that you're only actually using ~80% or so of the PSU's capacity.

Yes, not 12V DC, it's 220-240V AC. It's rated at 181.7w (0.79A x 230v) so really any wire will do. I'd probably use 14AWG flexible extension wires since I have plenty of that lying around, but you could use 18AWG with ease. If you're going to have a bunch of them on your door, I'd skip the plug and wire them all together in an electrical junction box wired for 240V.


I think you're confusing duty cycle with MTBF. I have no doubt that those Papst will last MUCH longer than the radiator fans, but you should look up their rated MTBF.

bump

Hopefully a fair price for both the seller and myself. Do you have one to sell?

Of course it's a scam. You're promoting them by linking to their site which makes you just as bad. Please remove the link from your post to avoid aiding scammers.


Edit: Thank you for removing the link. 

It probably has terminals for you to connect the wires to directly, then you can put whatever plug you want on the other end? Nice looking fan.

You're going to burn the freezer out. It's compressor isn't made to run like that.

Bump

Depends. How much chicken do we have left?

woo indeed!

Quick google search about reversed polarity:


So, it may work that way.


Yes, it will power them just fine. 12V DC is 12V DC, the fan won't know what's supplying the power.

I don't know if this is something that needs to be considered, but genrally a charged car battery is about 12.8v and close to ~14.4v while the alternator is charging. The DPS2000 will be 12.25v unless you play with it. Shouldn't be an issue I imagine, just slightly different amperage.

Yep, don't want to end up with something that won't do the job and have to buy twice. Might end up having to use something 120/240v since a 100% duty cycle fan will probably tend to be AC in that format I imagine? Not sure though.

Dave,

I'm not sure about using those. What's the duty cycle on them? Car radiator fans don't run 100% of the time the car is on, and I don't think they're built for it.

You're right. Setting to 100% is just a generic answer from them since they don't know what your environment looks like. If 35% keeps your machine cool enough while mining, you'll be fine with a loss of internet.

Network has gone 38 minutes since our last block without finding another. Let's find the next one for back to back blocks. 

Same here. Local S7 hashrate = reported hashrate on Kano. Unless you're solo mining GW, switching to Kano would be a good bet to maximize profits vs pretty much any other pool.

Looking for 1 more fully working cube.

I wouldn't buy the real version for the price you're asking, much less a clone. It's a stupid phone. We're in 2016 not 2005.