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663
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Bitcoin / Hardware / Re: Gauging interest in a S5+ / 3xS7 specific power supply breakout board
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on: November 27, 2015, 04:07:06 PM
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hey j4b,
2 of my 2000bb has only AC lights, no DC. before it was ok then now no more DC green LED light upfront. the breakout boards are working fine on other 2000bb's.
i can also hear a relay clicking sound.
any tips will be appreciated.
i need 1 2880W breakout board sent to me.
sorry not really related though but you are the guru of 2000bb + 2880W psu's & the breakout boards master !
pls do pm me when you are free.
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667
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Bitcoin / Hardware / Re: S7 controller has nine 18- pin jacks So what can we do with it?
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on: November 26, 2015, 04:06:56 PM
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I just hooked two units together via the rails and then unmounted both control boards and place a single bb board and data port board in between the two miners held in place with a little velcro. The original cables the S7 ships with are plenty long enough when set up this way...  [img=http://s27.postimg.org/z2bmhxs3z/IMG_0128.jpg][img=http://s27.postimg.org/3u31km2dr/IMG_0120.jpg]It would seem to me you could lash together two S7's with a single controller if you were to lay the miners on their sides, so that the "Top Side" were facing each other. Kind of awkward to wire up, but it shouldn't take any "long cables" to accomplish.
It would be interesting to know if the S7 cooling actually requires that the blades be vertical to work OK. While it's obvious what the "expected" orientation is, does it still behave well if it's laid on it's side?
point them upwards top to top that allows for vertical and hot air raises. stack them on a box fan which allows for more air to help fans. also if fans fail the box fan may save the day. thats what i did, works great. thx for sharing the info guys but i noticed they do run slower than individual controller how much slower? 4800 + 4800 = 9600 are you dropping to 9500 or 9400 or worse? I theorize the controller is running 4 fans vs 2 so that the pcie runs volts say 12.0 vs 12.1 and thus lower speeds. I also think 2 s-7s on two controllers give two sets of psu readings so if one psu is 12.1 and the other is 12.0 one s-7 will run better. but 1 controller uses the lower reading so it reads the 12 and both s-7s run lower. voltage is minimum of 12.2V & i might up it soon (12.5V) after modding psu's. i can run 3 s7's with 2 x 2000bb psu but i'm running 1 x 2000cc per s7 so power is not the issue. i think finsky might be right about connection between chips & controller ? after i've modded psu voltage to 12.5V or more i will try again & see how it goes. tests will be at stock speeds. 12.5V & 12.8V will be tested & see if there's any difference. lucky for us, no need the long cables like the s5's to merge 2 in 1. more ideas & suggestions, results are welcomed. |
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668
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Bitcoin / Hardware / Re: S7 controller has nine 18- pin jacks So what can we do with it?
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on: November 26, 2015, 12:53:35 PM
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I just hooked two units together via the rails and then unmounted both control boards and place a single bb board and data port board in between the two miners held in place with a little velcro. The original cables the S7 ships with are plenty long enough when set up this way... [img=http://s27.postimg.org/z2bmhxs3z/IMG_0128.jpg][img=http://s27.postimg.org/3u31km2dr/IMG_0120.jpg]It would seem to me you could lash together two S7's with a single controller if you were to lay the miners on their sides, so that the "Top Side" were facing each other. Kind of awkward to wire up, but it shouldn't take any "long cables" to accomplish.
It would be interesting to know if the S7 cooling actually requires that the blades be vertical to work OK. While it's obvious what the "expected" orientation is, does it still behave well if it's laid on it's side?
point them upwards top to top that allows for vertical and hot air raises. stack them on a box fan which allows for more air to help fans. also if fans fail the box fan may save the day. thats what i did, works great. thx for sharing the info guys but i noticed they do run slower than individual controller |
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670
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Bitcoin / Pools / Re: [∞ YH] solo.ckpool.org 0.5% fee anonymous solo bitcoin mining 129 blocks solved!
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on: November 25, 2015, 09:05:52 PM
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"bestshare": 44363102898.412689 still so farrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr c'mon, 1 block please  Dang, that would have solved a block earlier this year! How much hash power are you running and what type of machine pulled that share? few s7's, few ccd's, couple of s3's, bunch of dragons from my own. rented some hash, hit that # when hashrate was abt 500ths ish . . . then boosted a lil' more hashrate peak of 1.3x ph but it remained sadly. was just refreshing solo page, looking at blockchain & wanting to see Relayed solo ckpool, wallet open & hoping for a popup. everything was just the same, back to pooled mining for a bit. will be back soon. shortlived sadly  the part that hurts the most is that p2p hit a block below 1 ph but those guys deserved it after waiting for so long. GL to all who are still solo'ing. {"hashrate1m": "90.9T", "hashrate5m": "348T", "hashrate1hr": "653T", "hashrate1d": "63.6T", "hashrate7d": "15.4T", "lastupdate": 1448485488, "workers": 5, "shares": 3268518759, "bestshare": 44363102898.412689, "bestever": 44,363,102,898} |
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672
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Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH
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on: November 24, 2015, 06:19:43 AM
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@not.you: nice error rate at that speed!
Did anyone went above 5gh? or the design of the power for the asics doesn't allow it?
thx
the chip can go much higher according to the datasheet Typical hash rate and power Voltage(V) Hash Rate(GH/S) Current(A) Total power(W) W/GH 0.71 38.75 14.350 10.189 0.263 0.66 32.50 10.760 7.102 0.219 0.60 21.25 6.410 3.846 0.181 need adjustable voltage to up the power, pcie cables + connectors have to be able to take the heat, better cooling, depends on chip production batch, etc etc ... of course efficiency, is it worthwhile to oc that much ? basic rule is : the more u oc = the shorter the lifespan, less stable, more heat |
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673
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Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH
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on: November 24, 2015, 04:09:05 AM
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Batch 6 and 8 135 45 chip blade  those caps + coil .. used to "help" boost the voltage  so it can be clocked to 700mhz n gives out the "advertised" hashrate ? i think i read somewhere if anything more than +12V will help to increase hashrate & more stable hmmm, up it to 12.5V n see how it goes ? i think that might slow down or stop the wild hashrate fluctuations ? |
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674
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Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH
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on: November 23, 2015, 04:57:00 PM
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i still calc roi using : current diff + 50% current diff
market won't be dead yet . . . still many have high hopes. miners will be sold out when btc moves. 1 of the main issue is that s7 are still pre-orders, bmt might be doing some r&d + testing while the btc are being sent to them.
s7 is a pretty neat miner besides the 9+1 pcie's .... just my 2 cents
i'm gonna post this again, to those who have "merged" 2 in 1 s7 using single controller, withouth changing any settings, have you noticed that the hashrate is lower than 1 single controller ?
Is decreased, but not significantly. I use only the very best miners in pairs. Some of them are working at a frequency 625 (from batch 3) 2d17h GH/S(avg) 10,063.61 1d21h GH/S(avg) 10,107.83 Speed is more dependent on the ambient temperature and the PSU. Waiting for the current six miners. ANTMINER S7 BATCH 5 × 2 Batch 5 scheduled shipping date is in Nov. 23~Dec. 3. ANTMINER S7 BATCH 6 × 2 Batch 6 scheduled shipping date is in Dec. 7~Dec. 17. ANTMINER S7 BATCH 7 × 2 Batch 7 scheduled shipping date is in Dec. 7~17. I think that they have been built and is currently being tested. thx for the answer !!! i've already received my batch 5 ... u haven't ? i was really surprised they shipped out early. did you upgrade your FW to latest ? just DL the tar.gz file then flash direct ? have to unpack ? all of my s7's, batch 3 & 5 comes with sep 15 fw |
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675
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Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH
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on: November 23, 2015, 03:38:28 PM
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Does anyone else think that Bitmain may have oversold these S7 units. By oversold I mean selling so many units that the diff will go up by stupid amounts, killing their ability to sell more batches of S7s pretty soon. At least at the current price that is. I'll admit that I contributed to this problem by jumping in at batch 1 and again at batch 3. For some stupid reason I thought that the diff would stay under 5% per jump as my ROI calculation.
Between the S7 and Avalon 6 (not to mention Bitfury's new miners in its 100 million dollar mine that's now coming online) I think the market might be dead soon. I see that batch 8 has been up for a while and I have a feeling that it may not even sell out if we get the kind of jumps that have happened in the last day or two again when the next few batches actually ship out. Avalon 6s are just starting to come online this week. Most sold on the secondary market are just arriving or in transit to customers right now.
i still calc roi using : current diff + 50% current diff market won't be dead yet . . . still many have high hopes. miners will be sold out when btc moves. 1 of the main issue is that s7 are still pre-orders, bmt might be doing some r&d + testing while the btc are being sent to them. s7 is a pretty neat miner besides the 9+1 pcie's .... just my 2 cents i'm gonna post this again, to those who have "merged" 2 in 1 s7 using single controller, withouth changing any settings, have you noticed that the hashrate is lower than 1 single controller ? |
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679
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Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH
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on: November 21, 2015, 10:53:04 AM
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Were those 3 x S7's you have connected together done with factory 18 pin ribbon cables, J4bberwock 18 pin ribbon cables or 18 pin ribbon cables you made yourself?
These are S5+ cables
Did you attach any fans to those PSU? From what I recall I don't think those PSU have fans of their own.
Yes. 2x 12cm fan https://bitcointalk.org/index.php?topic=1178099.0just combine 2 in 1 .... 6 blades using 1 controller board, both same batch 5 same blade ver #. noticed that it runs slower than individual controller with 3 boards .... hmmm thoughts ? i always change the pwd when i get the new shiny miners. yes, i do agree it's related towards more to freq for hw errors not temps but talking abt temp, i find it that they work best around 60 deg C batch 5 i got v1.3 boards but my batch 3 i got v 1.6 boards ...hmmmm |
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