kenshirothefist
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January 07, 2016, 07:14:49 AM |
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I flashed both versions to the corresponding Rpi (SD cards) and neither worked.
I used Win32DiskImager and SD Formatter
Try connecting the miner to a Linux pc and see if it is detected by cgminer directly, take a look here: https://www.nicehash.com/index.jsp?p=news&id=57
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supertee
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January 07, 2016, 07:59:11 AM |
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I asked blockc about 10 pieces and they didn't even respond to me when I asked for a better price (it was when bitmain dropped their prices) and for a local hosting.
So I was forced to buy some S7... Still would buy Avalon, but it must be < USD 1000, every other price doesn't make any sense at all.
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Passion.
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kilo17
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Activity: 980
Merit: 1001
aka "whocares"
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January 07, 2016, 08:05:17 AM |
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I have just posted a Group Buy for Avalon6 at $1100 each with no minimum order https://bitcointalk.org/index.php?topic=1318003.0
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Bitcoin Will Only Succeed If The Community That Supports It Gets Support - Support Home Miners & Mining
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MarkAz
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January 08, 2016, 01:05:12 PM |
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I flashed both versions to the corresponding Rpi (SD cards) and neither worked.
I used Win32DiskImager and SD Formatter
Interesting - that's exactly the process I used and it worked fine for me... And the new version of the RPi firmware has the ability to upgrade through the web interface. Are you sure you flashed it with the correct version for the original Pi? It's the bcm2708 version - the other version is for the RPi2. Oh, one other thing worth noting, I've reverted back to the 11/24 MM instead of the 12/25, I was having units randomly go offline and remain offline - but you can run the 11/24 MM on the latest RPi image without any problems.
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philipma1957
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Activity: 4256
Merit: 8594
'The right to privacy matters'
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January 08, 2016, 01:36:25 PM |
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I flashed both versions to the corresponding Rpi (SD cards) and neither worked.
I used Win32DiskImager and SD Formatter
Interesting - that's exactly the process I used and it worked fine for me... And the new version of the RPi firmware has the ability to upgrade through the web interface. Are you sure you flashed it with the correct version for the original Pi? It's the bcm2708 version - the other version is for the RPi2. Oh, one other thing worth noting, I've reverted back to the 11/24 MM instead of the 12/25, I was having units randomly go offline and remain offline - but you can run the 11/24 MM on the latest RPi image without any problems. I am using 601510-afa837a0 with the stock sdcard kilo17 sent to me good results I am downvolting today 11.75 volts at freq 500 and fan 20 very quiet at these settings and good eff about .3 watts a gh
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pikachuy
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January 10, 2016, 09:26:53 AM |
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Anyone know if these 14awg (thicker wires) cables are good enough (2 wires per connector - ground & power) for the Avalon 6? http://www.ebay.com/itm/4-Bitmain-Antminer-S1-S3-S5-S7-SP20-Gridseed-6pin-14-AWG-Power-Supply-Cables-/181837555754Or would it just be safer to get 16awg (not as thick as 14awg) cables that have 6 wires (3 ground & 3 power) per PCI-e connector? It seems like it will look cleaner when connecting to a server PSU breakout board. Since it's only (14awg) 4 power + 4 ground wires total, compared to (16awg) 12 power + 12 ground wire total connecting to the breakout board on a server PSU.
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Liquid71
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January 11, 2016, 12:49:43 AM |
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So does undervolting improve efficiency or just reduce noise?
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philipma1957
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Activity: 4256
Merit: 8594
'The right to privacy matters'
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January 11, 2016, 06:27:32 PM |
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So does undervolting improve efficiency or just reduce noise?
Both, but not a lot on efficiency. I did 12.7 volts 8000 gh at 0.36 watts a gh I did 12.2 volts 7100 gh at 0.31 watts a gh I did 11.8 volts 6100 gh at 0.30 watts a gh.
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PPOC
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January 12, 2016, 07:02:39 PM |
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I flashed both versions to the corresponding Rpi (SD cards) and neither worked.
I used Win32DiskImager and SD Formatter
Interesting - that's exactly the process I used and it worked fine for me... And the new version of the RPi firmware has the ability to upgrade through the web interface. Are you sure you flashed it with the correct version for the original Pi? It's the bcm2708 version - the other version is for the RPi2. Oh, one other thing worth noting, I've reverted back to the 11/24 MM instead of the 12/25, I was having units randomly go offline and remain offline - but you can run the 11/24 MM on the latest RPi image without any problems. I am using 601510-afa837a0 with the stock sdcard kilo17 sent to me good results I am downvolting today 11.75 volts at freq 500 and fan 20 very quiet at these settings and good eff about .3 watts a gh Where did you get your Avalon? Zoom hash? I hear there is a group buy for US somewhere to get cost down to 1200? Looking to get 2 of them but Zoomhash is getting 1450 then also need a PI.
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BTC: 1Bo6YsPeHCrVRygHLJg9BwHeaLSQpppcJi "Lost coins only make everyone else’s coins worth slightly more. Think of it as a donation to everyone."
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pikachuy
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January 12, 2016, 07:05:15 PM |
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Where did you get your Avalon? Zoom hash? I hear there is a group buy for US somewhere to get cost down to 1200? Looking to get 2 of them but Zoomhash is getting 1450 then also need a PI.
Here you go for the group buy link https://bitcointalk.org/index.php?topic=1318003.0
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alh
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Activity: 1846
Merit: 1052
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January 12, 2016, 07:15:13 PM |
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Anyone know if these 14awg (thicker wires) cables are good enough (2 wires per connector - ground & power) for the Avalon 6? http://www.ebay.com/itm/4-Bitmain-Antminer-S1-S3-S5-S7-SP20-Gridseed-6pin-14-AWG-Power-Supply-Cables-/181837555754Or would it just be safer to get 16awg (not as thick as 14awg) cables that have 6 wires (3 ground & 3 power) per PCI-e connector? It seems like it will look cleaner when connecting to a server PSU breakout board. Since it's only (14awg) 4 power + 4 ground wires total, compared to (16awg) 12 power + 12 ground wire total connecting to the breakout board on a server PSU. Sort answer: NOWhile the 14Ga wire is better, it then funnels all the power into a just ONE 12V pin on the connector. That pin isn't rated for more than about 7-8 Amps, and that assumes it's a nice solid fit. Much better to have all the pins carrying power. I saw one setup that has a single 14Ga wire that then was split to the 3 pins on the connector. Much better.
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notlist3d (OP)
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Activity: 1456
Merit: 1000
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January 12, 2016, 07:36:35 PM |
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Anyone know if these 14awg (thicker wires) cables are good enough (2 wires per connector - ground & power) for the Avalon 6? http://www.ebay.com/itm/4-Bitmain-Antminer-S1-S3-S5-S7-SP20-Gridseed-6pin-14-AWG-Power-Supply-Cables-/181837555754Or would it just be safer to get 16awg (not as thick as 14awg) cables that have 6 wires (3 ground & 3 power) per PCI-e connector? It seems like it will look cleaner when connecting to a server PSU breakout board. Since it's only (14awg) 4 power + 4 ground wires total, compared to (16awg) 12 power + 12 ground wire total connecting to the breakout board on a server PSU. Sort answer: NOWhile the 14Ga wire is better, it then funnels all the power into a just ONE 12V pin on the connector. That pin isn't rated for more than about 7-8 Amps, and that assumes it's a nice solid fit. Much better to have all the pins carrying power. I saw one setup that has a single 14Ga wire that then was split to the 3 pins on the connector. Much better. Holy crap I missed the cable was going all through one pin. That is a horrible idea, I would avoid at all costs. There are some on the forums that make cables. I would look on here some Phil has a good show of of Finksy/J4bbrwock gear - https://bitcointalk.org/index.php?topic=1284563.0
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philipma1957
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Activity: 4256
Merit: 8594
'The right to privacy matters'
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January 12, 2016, 07:37:21 PM |
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Anyone know if these 14awg (thicker wires) cables are good enough (2 wires per connector - ground & power) for the Avalon 6? http://www.ebay.com/itm/4-Bitmain-Antminer-S1-S3-S5-S7-SP20-Gridseed-6pin-14-AWG-Power-Supply-Cables-/181837555754Or would it just be safer to get 16awg (not as thick as 14awg) cables that have 6 wires (3 ground & 3 power) per PCI-e connector? It seems like it will look cleaner when connecting to a server PSU breakout board. Since it's only (14awg) 4 power + 4 ground wires total, compared to (16awg) 12 power + 12 ground wire total connecting to the breakout board on a server PSU. Sort answer: NOWhile the 14Ga wire is better, it then funnels all the power into a just ONE 12V pin on the connector. That pin isn't rated for more than about 7-8 Amps, and that assumes it's a nice solid fit. Much better to have all the pins carrying power. I saw one setup that has a single 14Ga wire that then was split to the 3 pins on the connector. Much better. they are a melting hazard do not use them.
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pikachuy
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January 12, 2016, 07:39:12 PM |
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6 cables per connector it is. Thanks for the feedback guys.
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PPOC
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January 12, 2016, 07:46:24 PM |
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Where did you get your Avalon? Zoom hash? I hear there is a group buy for US somewhere to get cost down to 1200? Looking to get 2 of them but Zoomhash is getting 1450 then also need a PI.
Here you go for the group buy link https://bitcointalk.org/index.php?topic=1318003.0Excellent, thanks. I posted my request on that topic and PM'ed PhilipMA also. Thanks Again.
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BTC: 1Bo6YsPeHCrVRygHLJg9BwHeaLSQpppcJi "Lost coins only make everyone else’s coins worth slightly more. Think of it as a donation to everyone."
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64dimensions
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January 12, 2016, 11:55:01 PM |
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Here is some performance data over many days for my 3 A6's:
1) Power supplies: Antec HCP Platinum 1300W Power Supply (runs either 120 or 140 VAC).
2) Antec outputs (DVM): 12.3 to 12.4 volts at load. These are plugged into 240 VAC.
3) Hash rate: Two units 3600+, one unit 3900.
4) Each A6 has it's own RPI.
5) All units have the latest MM and RPI firmware.
6) Each Antec has 4 12V power supply buses. Each PCI connector is hooked up to a different bus.
7) They are all hooked up to kano.is.
The A6's display 0.1 to 0.2 volts lower reading than a DVM power supply reading.
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philipma1957
Legendary
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Activity: 4256
Merit: 8594
'The right to privacy matters'
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January 13, 2016, 12:28:21 AM |
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Here is some performance data over many days for my 3 A6's:
1) Power supplies: Antec HCP Platinum 1300W Power Supply (runs either 120 or 140 VAC).
2) Antec outputs (DVM): 12.3 to 12.4 volts at load. These are plugged into 240 VAC.
3) Hash rate: Two units 3600+, one unit 3900.
4) Each A6 has it's own RPI.
5) All units have the latest MM and RPI firmware.
6) Each Antec has 4 12V power supply buses. Each PCI connector is hooked up to a different bus.
7) They are all hooked up to kano.is.
The A6's display 0.1 to 0.2 volts lower reading than a DVM power supply reading.
yeah out of my curious mind if you flip the two antec's does the hash rate flip? I had this same issue with my two avalon's and two 1200 watt seasonic platinums. I end up with ½ of each seasonic on each side of the two avalons Don't do this if you do it wrong you can fry both psu's and both avalon'sonce I did this the avalon hash rates balanced out. This was why I ended up with the 240 volt server psu's
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64dimensions
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January 13, 2016, 01:42:13 AM |
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Here is some performance data over many days for my 3 A6's:
1) Power supplies: Antec HCP Platinum 1300W Power Supply (runs either 120 or 140 VAC).
2) Antec outputs (DVM): 12.3 to 12.4 volts at load. These are plugged into 240 VAC.
3) Hash rate: Two units 3600+, one unit 3900.
4) Each A6 has it's own RPI.
5) All units have the latest MM and RPI firmware.
6) Each Antec has 4 12V power supply buses. Each PCI connector is hooked up to a different bus.
7) They are all hooked up to kano.is.
The A6's display 0.1 to 0.2 volts lower reading than a DVM power supply reading.
yeah out of my curious mind if you flip the two antec's does the hash rate flip? I had this same issue with my two avalon's and two 1200 watt seasonic platinums. I end up with ½ of each seasonic on each side of the two avalons Don't do this if you do it wrong you can fry both psu's and both avalon'sonce I did this the avalon hash rates balanced out. This was why I ended up with the 240 volt server psu's Phil, I tried your suggestion earlier and maybe, there was a 50Ghz difference. I also tried a unique feature that the Antec's have called: OC Link™ - Allows 2 HCP Platinums to work in tandem to power the most demanding systems. This cable hooks up to some sort of special com port and allows two HCP Platinum 1300's to function as one 2600W supply. I didn't see any change in the collective hash rate. What I did see a change in was giving each A6 there own RPI. I had two chained together and this added about 100 or 200 Ghs to the lowest performing A6 when the low performer was on it's own. This is consistent with the earlier observation in this thread that there is some sort of compromise when operating an A6 chain. I think what the farms probably do is have a standard setup to eval incoming individual A6's and try to match A6's with similar performance characteristics and put the similar one's together on the same chain. 64
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64dimensions
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January 13, 2016, 02:47:30 AM |
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One more note:
The "hot" A6 doing 3900+ @ 240VAC, drops down to 3800 when the Antec HCP Platinum 1300W is switch to the 120V line.
From the watt meter, this unit draws 1220 watts @3771 Gh/s. 1220/3771 = 0.323 The PF is 0.99.
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