Topic: Swedish ASIC miner company kncminer.com - page 1689. (Read 3049501 times)

its not a prototype, but yes it does not have the asic chips.

Ruh-roh. Prototype pics on the 10th of the month? I wonder what bitbet is gonna do today?

My suspicion is that the machine in the pictures is a mock up using real PCBs without the ASICs attached. Otherwise there would have been pictures of it plugged in and mining, right?

nice box.

Don't think this was 'designed' for KNC, but just a standard case that was available. So my bets are still on 'jet exhaust'. They make Saab JAS 39 Gripen's there to! 

Something as trivial as routing the power connectors? 

ah ok...thought it might be the entrance for the leprechauns doing maintenance on our miner while we sleep..

*fyi: it was a serious question

I was thinking "jet exhaust". 

for the bitcoin chutes silly!  they POUR out!

Why ask for a device in fancy pants, when you will throw it anyway after few months?

Yeah flat surfaces are super simple. My emphasis on surface area was in a sitution where you've got a simple bath, say an aquarium or other large rectangular enclosure without an exchanger. The surface area of the liquid will dissipate more heat than the glass, as long as the surface is being churned. The outer medium is a given, you could use fans or another cooler material (water/etc) passing over it to help dissipate heat. (some use glass/acrylic mineral oil box inside of another aquarium, as is one of my designs) But with the liquid surface providing the main cooling, it's surface area which counts. In all of the passive units (ie, not using a proper heat exchanger) I've seen and played with, this was the more important factor. This is how I understood the OP's perspective, simply dropping the boards into a large tank and circulating the oil.

It's why I was encouraging they  not do just that. It's doable with a low power computer, but it's just going to go the way of fried chicken with ASICs without a great dissipation plan.


I wouldn't think they're stupid per-sé, but they'd need really amazing reasoning to do it. Honestly I'd find a simple watercooling setup (even the pre-built ones) to be just as effective, quiet, and lower maintenance than air cooling. I'd go that route before I dunked ASIC boards.


Yup! Much easier for sure.


I think that's part of it, but mainly there's no real market for it. Only a small corner of the tech world really gets into watercooling to the extreme, and only a fraction of them look into submersion--and usually just for the neato factor. There are some consumer kits you can order for submersion of desktop systems, it's just not a popular item at all. Some datacenters use it, as do some other server centers. It's a niche thing.


I couldn't tell you the exact distributor, just that I've got access to resources to obtain it for super dirt cheap. Maybe I'm not paying the full price, that could be it.


For what its worth, you can get very high quality, positive flow aquarium pumps. Most of the high end submersion systems use precisely that. I was suggesting the simple pumps for flowing the oil across/around the electronics, not the plumbing.


I definitely would say it's not practical to submerge when considering the other options! Again for asics, air cooling in open case systems makes great sense, especially if they're in a room with air handling. Other than that, I'd go simple waterblock setups if I had an amazing reason to do so.


I dunno why so many people are nitpicking about the price of a good PSU. These systems are thousands of dollars, unique, invaluable in ways, and do not have off-the-shelf user servicable parts. But folks are going to be like "aw man, $150-$200 for a power supply? Ugh! man this sucks!"

Seriously folks?

This isn't a knock on you.. I just don't get the mentality.

anyone has a clue why there are 2 square holes at the back panel of the miner's case ?

*visible on the last 2 photos

might be good scrap metal!

I wonder can we get refund when sending empty chassis back ?

EDIT: i'm just joking, no hard feelings

for whatever reason critics keep forgetting that KNC is about delivering barebones ASAP -- sure you can dress it up and paint it neon if you like too and put wheels on it

For Saturn, they could. For Jupiter, it would impede airflow too much as the chips would need to sit closer together.

EDIT: Oh, a a big YAY!!! 

looks like future!

wtf? and they couldn't fit psu inside...    I sense custom case business here...

looks special!!

Simply pointing out that it is both difficult and expensive to "properly plan & execute" an oil cooling system -- a likely reason for no consumer implementations being on the market.  Not sure where you're getting $2/gal, the price (bought in 55-gal drums), about as "bulk" as anyone here is likely to buy, is over $10/gal, more like $20, all said and done.  The radiator (cooler, heat exchanger) also needs to be much larger.  While aquarium pumps are likely to work (would have to be several -- this stuff is not water, and we're not filtering for fishies -- we want actual flaw), and i've used them for water cooling (the actual pumps/rotors are often exactly the same), i sure wouldn't sleep well with a Rube Goldberg contraption cooling a big chunk of my monyz.  In short, you have to buy everything you would buy for water cooling minus waterblocks plus tank & headaches.

Finally, having made many all-water/no noise gaming rigs which proved as practical/maintenance free as air cooling, i've never come close to making practical submersion-cooled boxen.  Doing it "right" would cost a fortune.

IT is free, but over time you will do better then free if you own the panels, and some folk may prefer different types of panel in the future. Some people could have those free ones and also some of their own later I suppose.

If anyone's interested they can decide for themselves http://ashadegreener.co.uk/