Word of warning...
This alternate user with apostrophe in name sent me a PM claiming to be Spondoolies-Tech and taking discounts for orders in bitcoin only:
https://bitcointalksearch.org/user/spondoolies-tech-338842
Topic: [ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs - page 596. (Read 1260354 times)
June 02, 2014, 04:09:53 PM
June 02, 2014, 04:06:58 PM
*coughs*
Oh man, they've had it ready since 2003!? 
( also.. hole 44? who labels holes? that's a lot of holes. )
June 02, 2014, 04:04:24 PM
Who cares what rev it is? Do you really think spondoolies went through no revisions?
My friend and favorite AM SH is back. I hope the dividends were substantials
Of course we had revisions.
June 02, 2014, 04:00:51 PM
Those photos are very sexy. The differences between these two companies is night and day.
Really? Knc released board pics also.
https://www.kncminer.com/userfiles/image/Neptune-card.jpg
REV C made me giggle in particular. thanks for reiterating the joke
Who cares what rev it is? Do you really think spondoolies went through no revisions?
*coughs*
June 02, 2014, 03:57:18 PM
Those photos are very sexy. The differences between these two companies is night and day.
Really? Knc released board pics also.
https://www.kncminer.com/userfiles/image/Neptune-card.jpg
REV C made me giggle in particular. thanks for reiterating the joke
Who cares what rev it is? Do you really think spondoolies went through no revisions?
June 02, 2014, 03:55:38 PM
Those photos are very sexy. The differences between these two companies is night and day.
Really? Knc released board pics also.
https://www.kncminer.com/userfiles/image/Neptune-card.jpg
REV C made me giggle in particular. thanks for reiterating the joke
June 02, 2014, 03:54:33 PM
Those photos are very sexy. The differences between these two companies is night and day.
Really? Knc released board pics also.
June 02, 2014, 03:51:40 PM
Those photos are very sexy. Makes me wish I wasn't out of this game now.
And kudos for proudly displaying your progress! KNC claim that their 20nm wafers have left the fab today yet they haven't shown photos of anything except a snippet of the case graphic. The differences between these two companies is night and day.
And kudos for proudly displaying your progress! KNC claim that their 20nm wafers have left the fab today yet they haven't shown photos of anything except a snippet of the case graphic. The differences between these two companies is night and day.
June 02, 2014, 03:32:49 PM
My guess is power rails. Each ASIC consumes about 80 Watt
Will ask Harel or Benny
Thanks for your comment. Now that I recall that you use large shared heat-sinks I could also imagine that the pattern I see is a simple hex-tile to optimize the heat dissipation. I just couldn't see it on the PCB photograph alone. I forgot what's the gain from hexagonal tilling: sqrt(2)/sqrt(3)? Will ask Harel or Benny
June 02, 2014, 03:16:11 PM
The answer is no to both questions.
So can you tell us what is the motivation for the unusual design approach:1) easier to simulate the mini-circuit
2) RF design to minimize reflection and noise in the traces
3) pick&place machine speed optimization or other manufacturability concerns
4) all of the above
The contrast to something like Enterpoint's quad FPGA board is obvious.
Will ask Harel or Benny
Harel reply:
The Idea was to have the ASIC and it's DC/DC as close as possible.
This block was layout together as one piece. Once the block's layout was done it was duplicated 15 times per each main board.
The location of the ASIC was set based on thermal simulation results that took into account the Heat-sink dimension and the box's air flow.
btw: for ASICs customers, we're giving the entire SP30 production files as a reference design.
June 02, 2014, 03:08:30 PM
The answer is no to both questions.
So can you tell us what is the motivation for the unusual design approach:1) easier to simulate the mini-circuit
2) RF design to minimize reflection and noise in the traces
3) pick&place machine speed optimization or other manufacturability concerns
4) all of the above
The contrast to something like Enterpoint's quad FPGA board is obvious.
June 02, 2014, 02:54:07 PM
SP30 management and main ("ASIC") boards:
...snipped...
I have to ask: the main boards look mechanically designed to be cut/punched into 15 separate mini-boards. Are they indeed designed like so electrically?...snipped...
Or maybe answering the above question will violate some of your non-disclosures?
The answer is no to both questions.
June 02, 2014, 02:47:37 PM
Anyone can help set the time/date on SP10?
P.S. Did it with date -s 201406022311
P.S. Did it with date -s 201406022311
June 02, 2014, 02:47:17 PM
SP30 management and main ("ASIC") boards:
...snipped...
I have to ask: the main boards look mechanically designed to be cut/punched into 15 separate mini-boards. Are they indeed designed like so electrically?...snipped...
Or maybe answering the above question will violate some of your non-disclosures?
June 02, 2014, 02:45:36 PM
Thank you!
No problem. By the way, with those voltage settings, I'm getting 1.23TH/s steady for the past 24 hours. The ASIC Stats page shows it's using 929 watts. Temps are 21 in front and 71 in back. Oh, and it doesn't sound like I've got a small jet trying to take off in my basement now, either. So, I lose about 100GH/s from the "turbo" settings, but I gain not having the little lady complaining about that damn thing screeching like a banshee.You can turn up the voltage a little-bit and aim at ~80C at the back. 71 in the back is cold
(still on holiday)
Considering that my future SP10s will be hosted at a DC that's a very good advice. Thank you.
Sure. I ran systems in my lab for weeks around 78C because I turned the fans to 50% because of the noise. And of course - be very careful when touching them at that temperature.
June 02, 2014, 02:37:41 PM
Thank you!
No problem. By the way, with those voltage settings, I'm getting 1.23TH/s steady for the past 24 hours. The ASIC Stats page shows it's using 929 watts. Temps are 21 in front and 71 in back. Oh, and it doesn't sound like I've got a small jet trying to take off in my basement now, either. So, I lose about 100GH/s from the "turbo" settings, but I gain not having the little lady complaining about that damn thing screeching like a banshee.You can turn up the voltage a little-bit and aim at ~80C at the back. 71 in the back is cold
(still on holiday)
I took a look at your over clocking guide for the "slow corner" and have entered those values... let's see where that brings it.Doing anything fun for your well-deserved holiday?
June 02, 2014, 02:32:19 PM
Thank you!
No problem. By the way, with those voltage settings, I'm getting 1.23TH/s steady for the past 24 hours. The ASIC Stats page shows it's using 929 watts. Temps are 21 in front and 71 in back. Oh, and it doesn't sound like I've got a small jet trying to take off in my basement now, either. So, I lose about 100GH/s from the "turbo" settings, but I gain not having the little lady complaining about that damn thing screeching like a banshee.You can turn up the voltage a little-bit and aim at ~80C at the back. 71 in the back is cold
(still on holiday)
Considering that my future SP10s will be hosted at a DC that's a very good advice. Thank you.
June 02, 2014, 02:30:26 PM
Thank you!
No problem. By the way, with those voltage settings, I'm getting 1.23TH/s steady for the past 24 hours. The ASIC Stats page shows it's using 929 watts. Temps are 21 in front and 71 in back. Oh, and it doesn't sound like I've got a small jet trying to take off in my basement now, either. So, I lose about 100GH/s from the "turbo" settings, but I gain not having the little lady complaining about that damn thing screeching like a banshee.You can turn up the voltage a little-bit and aim at ~80C at the back. 71 in the back is cold
(still on holiday)
June 02, 2014, 02:30:03 PM
You are selling
REV A 00 Unicorns - because Unicorns are always ON TIME, and work FIRST TIME.
unlike Butterflies, who are often quite late...
^ clueless dot com. June 02, 2014, 02:22:07 PM
Looking good! 6TH/s... gotta save my pennies
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