GekkoScience is now dabbling with 16nm ASICs for new designs

[takagari]

As for the server rack solution, same kind of solution could be done like with the S1 boards.

My message in the canada group buy thread:

I wonder if these boards will be able to be installed into a 4U server case etc.. I realize you would need to source heat sinks, but nothing else would really be needed would it?

You could come up with this kind of solution https://bitcointalk.org/index.php?topic=650462.20
Antminer S1's on a rack.

Saw that. Be more interested in a way to do it off the shelf.
Maybe some cut rails the boards can sit in. Which could then be mounted inside anything. Hmm

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[takagari]

I'm actually curious if an off the shelf water cooling plate or two would be able to be affixed to them.
Hmmm

[sidehack]

Probably not, given that the boards are flush with the heatsink on 3 edges and the 4th has all the connectors. But the heatsinks do have tapped holes on all 4 edges, so mounting like that is an option for sure. Unless you had custom heatsinks, but then you probably couldn't use all the screw holes if the heatsinks were smaller than the boards and you could get overheating chips from poor contact around the perimeter.

If you took a flat-bottom case you should be able to mount 6 board/heatsinks in there; a bit of drilling will get you holes through which to solidly mount the heatsinks. It wouldn't hurt to put a beam across the top that's notched to stabilize the boards further. You'd probably need to tie into USB headers same as inside an S3 case, and to fit power cords you might need a board built with straight PCIe instead of right-angle, but otherwise there'd be no issue. Tuck a small hub in the corner and call it good.

If you have C1 waterblocks (and there were independent manufacturers building similar things, if I'm remembering right) these would mount right up.

[gt_addict]

So basically it would be a Sidehack S4 but a load better   A few refit boards, atx psu, some nice quiet fans front and back, a raspi and usb hub all inbuilt to one 4U case. Sounds nice and tidy to me  

With the addition of the wireless from the raspi all you would need is a power lead coming out of it for the psu. (yes I know a wired connection is better but if its close enough to a router then why not lol).

[ZedZedNova]

With the addition of the wireless from the raspi all you would need is a power lead coming out of it for the psu. (yes I know a wired connection is better but if its close enough to a router then why not lol).

I have heard that wifi on the RPi3 is merely adequate due to the onboard antenna. Putting the RPi3 inside a grounded metal case would make it worse. Now, if you modded the RPi3 with an external antenna...

[agentcash]

With the addition of the wireless from the raspi all you would need is a power lead coming out of it for the psu. (yes I know a wired connection is better but if its close enough to a router then why not lol).

I have heard that wifi on the RPi3 is merely adequate due to the onboard antenna. Putting the RPi3 inside a grounded metal case would make it worse. Now, if you modded the RPi3 with an external antenna...

http://forums.outernet.is/t/raspberry-pi-3-antenna-mod-for-wifi/2535

[ZACHM]

I think we are treading into off-topic territory, but I will say it anyway.

Why not use something like this: https://www.amazon.com/EDUP-Adapter-300Mbps-Wireless-Antenna/dp/B00KV9TQXM/

I agree, I was thinking the same thing about a complete "box" unit that can be deployed anywhere in your house with just a single plug to the wall. I have been thinking about this as a replacement for space heaters.

[sidehack]

With the compartively low power density of these boards (compared to S7/S9/Avalon6 etc) they could be made pretty quiet. 6 boards in a 4U would run a bit hotter than an S2 at stock, but since it's adjustable that wouldn't have to be the case.

[takagari]

With the compartively low power density of these boards (compared to S7/S9/Avalon6 etc) they could be made pretty quiet. 6 boards in a 4U would run a bit hotter than an S2 at stock, but since it's adjustable that wouldn't have to be the case.

I think that's the main issue with the latest hardware, trying to cram so much into a small box
bitmain could of released single or dual board boxes, or spread the chips a bit more and had the same efficiency, in a more affordable box, with less noise.

But they aren't in it for the little fella.

[HagssFIN]

With the compartively low power density of these boards (compared to S7/S9/Avalon6 etc) they could be made pretty quiet. 6 boards in a 4U would run a bit hotter than an S2 at stock, but since it's adjustable that wouldn't have to be the case.

I think that's the main issue with the latest hardware, trying to cram so much into a small box
bitmain could of released single or dual board boxes, or spread the chips a bit more and had the same efficiency, in a more affordable box, with less noise.

But they aren't in it for the little fella.

Well they came up with the R4, it's better than S9 in that kind of sense.

[leowonderful]

Cooling technology is always getting better and there's always new ways to cram more into a smaller area, so it's not as bad as it could be. Anyways if it gets too bad, high-rpm fans can always be employed to get more of that cool air into the miner and the hot air out. Especially with these new higher wattage miners, Bitmain and pretty much all makers of miners need to watch out for the possibility of heat related issues.

On another note, just preordered a 2pac from the groupbuy thread, excited about the progress and seems everything is going as planned. I'd encourage you guys to buy some 2Pacs as well, even though these will only be the first in a few upcoming miners, the funds support sidehack and it's not going to waste

[sidehack]

Also, more BF16 samples just arrived from Punin. I now have enough to make about 8-10 sticks and 5 pods after going through some in initial testing.

[gt_addict]

Very nice, im eager to get hold of a pod (and also the cgminer-"insert subname here" version to run it on)

[qctechno]

Also, more BF16 samples just arrived from Punin. I now have enough to make about 8-10 sticks and 5 pods after going through some in initial testing.

I'm curious to see how they compare to Bitmain and Avalon chips.
Do they beat them all or fit between Bitmain and Avalon efficiency ?
I will be happy to re-use some C1 water block and build myself a nice and quiet miner with the retrofit boards 

[sidehack]

I'll shoot for a stock setpoint of 0.1J/GH chip-level, which means about 0.11J/GH machine-level. The chips are supposed to go down to 0.07J/GH, and if you can keep them cool they'll probably hit 0.14J/GH at the top (assuming the regulators hold out).

[h1psterassass1n]

Can we please name the pod the "Biggie"? 

[gt_addict]

Can we please name the pod the "Biggie"? 

Why?

[philipma1957]

Also, more BF16 samples just arrived from Punin. I now have enough to make about 8-10 sticks and 5 pods after going through some in initial testing.

best news I would love to see them soon.

[ZACHM]

Can we please name the pod the "Biggie"? 

Why?

This is why: https://en.wikipedia.org/wiki/Biggie_%26_Tupac

[Biodom]

LOL, it is not (to my knowledge) 2Pac because of Tupac, but because of shortened 2 chip Compac (or two-Pac or 2Pac), but it rhymes