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Author Topic: [GUIDE] BitFury Miner Support/Tuning  (Read 145566 times)
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Isokivi
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October 22, 2013, 02:56:27 PM
 #381



Could this be because they don't get enough power? .... damn should i change PSU? Im absolutly unsure where to start ...
Eliminating variables has been the biggest difficulty for me all along too. Sadly I dont have any good advice to give on that.

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October 22, 2013, 02:57:42 PM
 #382


Is there any danger i I get 2 separate psu and connect each to one of the PCIE connectors?
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October 22, 2013, 02:58:34 PM
 #383

Can you please post the log file of these chips? It would be helpful to mod the chainminer software.
Also what voltage are the cards at? Thanks
Sure.

Code:
94      AIfDSo  53      2.119   2.389   148     0       0       0       226     [8:0]   0       9 9 9 9 9 9 9 9 10 10 10 10 9 9 9 9     0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
95      AIfDSo  53      2.305   2.368   161     0       0       0       224     [8:1]   0       10 10 10 10 10 10 10 10 10 10 11 10 10 10 10 10         0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
96      aIfDSo  54      2.248   2.473   157     8       0       0       234     [8:2]   0       10 10 10 11 10 9 10 10 10 10 9 10 10 10 10 8    1 1 1 0 1 1 0 0 0 0 1 0 0 0 0 2
97      AIfDSo  54      2.548   2.420   178     2       0       0       229     [8:3]   0       12 12 12 12 11 11 11 11 11 11 10 11 11 10 11 11         0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0
98      aIfDSo  55      2.147   2.579   150     13      0       0       244     [8:4]   42      9 9 8 9 9 10 10 9 10 9 10 9 9 10 10 10  1 1 2 1 1 0 0 1 0 1 0 1 2 1 1 0
99      aIfDSo  54      2.419   2.505   169     0       0       0       237     [8:5]   0       11 11 11 10 10 10 10 10 10 10 11 11 11 11 11 11         0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
100     AIfDSo  53      2.734   2.452   191     1       0       0       232     [8:6]   0       12 12 12 11 12 12 12 12 12 12 12 12 12 12 12 12         0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0
101     AIfDSo  55      2.677   2.854   187     30      0       0       270     [8:7]   0       11 10 12 10 13 13 14 11 12 10 11 12 12 11 13 12         3 4 2 4 1 1 0 3 1 3 2 1 1 2 0 2         speed down
102     AIfDSo  54      2.548   2.685   178     7       0       0       254     [8:8]   0       11 12 11 12 12 12 12 12 10 11 11 11 11 10 10 10         0 0 1 0 0 0 0 0 2 1 0 0 0 1 1 1         speed down
103     AIfDSo  54      2.649   2.505   185     2       0       0       237     [8:9]   0       12 11 11 11 11 11 12 12 12 11 12 12 12 12 11 12         0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0
104     AIfDSo  54      2.319   2.431   162     0       0       0       230     [8:A]   0       10 10 11 11 10 10 10 10 10 10 10 10 10 10 10 10         0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
105     aIfDSo  55      2.233   2.558   156     2       0       0       242     [8:B]   0       9 9 10 10 10 10 10 9 9 10 10 10 10 10 10 10     0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0
106     aIfDSo  55      2.677   2.653   187     0       0       0       251     [8:C]   0       12 12 12 12 12 12 12 12 12 12 12 11 11 11 11 11         0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
107     aIfDSo  54      2.205   2.516   154     0       0       0       238     [8:D]   0       10 10 9 9 9 9 9 9 10 10 10 10 10 10 10 10       0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
108     AIfDSo  53      2.448   2.420   171     2       0       0       229     [8:E]   0       10 10 9 11 11 11 10 11 11 11 11 11 11 11 11 11  0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0
109     aIfDSo  55      2.563   2.727   179     1       0       0       258     [8:F]   0       11 11 11 11 10 11 11 11 11 11 11 11 12 12 12 12         0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0
110     AIfDSo  55      2.505   2.769   175     5       0       0       262     [9:0]   0       12 10 10 11 9 11 11 11 11 10 11 11 11 12 12 12  0 1 1 0 2 0 0 0 0 1 0 0 0 0 0 0
111     AIfDSo  53      2.190   2.442   153     2       0       0       231     [9:1]   0       9 9 10 10 10 10 10 10 10 10 10 10 9 9 9 8       0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1
112     AIfDSo  53      2.505   2.368   175     1       0       0       224     [9:2]   0       11 11 10 11 11 11 11 11 11 11 11 11 11 11 11 11         0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0
113     AIfDSo  54      2.577   2.452   180     2       0       0       232     [9:3]   0       11 11 11 11 10 10 11 11 11 12 12 12 12 12 12 11         0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0
114     aIfDSo  55      2.749   2.695   192     16      0       0       255     [9:4]   38      11 13 10 12 13 12 12 12 12 12 12 13 12 12 12 12         2 0 3 1 0 1 1 1 1 1 1 0 1 1 1 1
115     AIfDSo  54      2.620   2.590   183     1       0       0       245     [9:5]   0       12 12 12 12 12 12 12 11 10 11 11 11 11 11 11 12         0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0
116     AIfDSo  53      2.334   2.357   163     0       0       0       223     [9:6]   0       10 10 10 10 11 11 11 10 10 10 10 10 10 10 10 10         0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
117     AIfDSo  53      2.548   2.600   178     0       0       0       246     [9:7]   36      11 11 11 11 11 11 11 11 11 12 12 11 11 11 11 11         0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
118     AIfDSo  54      2.133   2.061   149     1       0       0       195     [9:8]   0       10 10 10 10 9 9 9 9 9 8 9 9 9 9 10 10   0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0
119     AIfDSo  53      2.448   2.410   171     0       0       0       228     [9:9]   0       11 11 11 11 11 10 10 10 10 10 11 11 11 11 11 11         0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0         speed up
120     AIfDSo  54      2.792   2.579   195     0       0       0       244     [9:A]   0       12 12 12 12 12 12 12 12 13 13 13 12 12 12 12 12         0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0         speed up
121     AIfDSo  54      2.462   2.325   172     1       0       0       220     [9:B]   0       10 11 11 11 10 10 10 11 11 11 11 11 11 11 11 11         1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
122     AIfDSo  55      2.749   2.801   192     2       0       0       265     [9:C]   0       12 12 12 12 13 12 12 12 11 12 12 12 12 12 12 12         0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0
123     AIfDSo  54      2.720   2.621   190     2       0       0       248     [9:D]   0       12 12 12 12 12 12 11 12 11 12 12 12 12 12 12 12         0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0
124     aIfDSo  54      2.563   2.653   179     0       0       0       251     [9:E]   0       11 11 12 12 12 11 11 11 11 11 11 11 11 11 11 11         0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
125     AIfDSo  54      2.448   2.685   171     4       0       0       254     [9:F]   0       10 10 10 11 11 11 11 10 11 11 11 11 10 11 11 11         1 1 1 0 0 0 0 1 0 0 0 0 0 0 0 0
126     AIfDSo  54      2.305   2.357   161     0       0       0       223     [A:0]   36      10 10 10 10 10 10 10 10 10 10 10 11 10 10 10 10         0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
127     AIfDSo  54      2.477   2.516   173     2       0       0       238     [A:1]   0       11 11 11 11 11 10 10 11 10 11 11 11 11 11 11 11         0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0
128     AIfDSo  54      1.002   1.068   70      1       0       2       101     [A:2]   0       5 5 5 5 4 5 5 4 4 4 4 4 4 4 4 4         0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0
129     aIfDSo  55      2.634   2.431   184     10      0       0       230     [A:3]   0       13 11 12 12 10 12 11 10 12 12 12 11 12 11 11 12         0 2 0 0 2 0 1 1 0 0 0 1 0 1 1 1
130     AIfDSo  56      2.162   2.653   151     31      0       0       251     [A:4]   0       10 11 11 11 11 9 8 9 11 10 7 8 10 8 8 9         2 1 1 1 1 2 3 2 0 1 4 2 1 3 4 3         speed down
131     AIfDSo  55      1.174   1.068   82      0       0       0       101     [A:5]   0       5 5 5 5 5 5 5 5 5 5 5 5 5 5 6 6         0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0         speed up
132     AIfDSo  54      2.419   2.463   169     3       1       0       233     [A:6]   0       11 11 10 11 11 11 11 11 11 10 9 9 10 11 11 11   0 0 1 0 0 0 0 0 0 0 1 1 0 0 0 0
133     AIfDSo  54      2.462   2.547   172     2       0       0       241     [A:7]   0       11 11 11 10 9 11 11 10 11 11 11 11 11 11 11 11  0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0
134     AIfDSo  54      2.606   2.431   182     0       0       0       230     [A:8]   0       12 12 11 11 11 11 11 11 11 11 10 12 12 12 12 12         0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0         speed up
135     aIfDSo  54      2.577   2.452   180     16      0       0       232     [A:9]   0       10 12 10 11 11 11 11 12 12 11 12 13 12 11 11 10         2 0 2 1 1 0 0 0 1 2 1 0 1 2 1 2
136     AIfDSo  55      2.878   2.494   201     1       0       0       236     [A:A]   0       13 13 12 13 13 13 12 12 12 11 12 13 13 13 13 13         0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0
137     aIfDSo  56      2.276   2.664   159     25      0       0       252     [A:B]   0       9 10 10 10 11 9 10 11 11 10 11 10 9 9 9 10      2 1 2 1 1 3 2 1 1 2 1 1 2 2 2 1
138     AIfDSo  55      2.348   2.505   164     5       0       0       237     [A:C]   0       10 10 9 11 11 11 10 11 10 11 11 10 10 10 10 9   0 0 1 0 0 0 1 0 1 0 0 1 0 0 0 1
139     AIfDSo  55      2.591   2.516   181     5       0       0       238     [A:D]   0       10 11 10 12 12 12 12 12 12 12 12 10 11 11 11 11         1 0 1 0 1 0 0 0 0 0 0 1 1 0 0 0
140     AIfDSo  53      2.319   2.262   162     1       0       0       214     [A:E]   0       9 10 11 11 11 11 10 10 10 10 10 10 10 10 10 9   1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
141     AIfDSo  55      2.663   2.621   186     4       0       0       248     [A:F]   0       12 12 11 12 12 12 13 13 11 11 11 11 11 12 11 11         0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 1
142     AIfDSo  54      2.076   2.198   145     0       0       0       208     [B:0]   0       9 9 8 8 10 10 10 9 9 9 9 9 9 9 9 9      0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
143     AIfDSo  55      2.391   2.420   167     3       0       0       229     [B:1]   0       10 10 9 10 10 11 11 11 11 10 10 11 11 11 11 10  0 0 1 0 0 0 0 0 0 1 1 0 0 0 0 0
144     AIfDSo  54      1.961   2.093   137     5       0       0       198     [B:2]   0       8 9 9 8 9 9 9 9 8 9 8 8 8 8 9 9         0 0 0 1 0 0 0 0 1 0 0 1 1 1 0 0
145     AIfDSo  55      2.391   2.188   167     14      0       0       207     [B:3]   0       11 11 11 10 10 10 9 10 10 10 10 11 11 11 11 11  0 0 0 0 0 0 1 1 1 1 2 2 2 2 1 1         speed down
146     aIfDSo  55      1.933   2.135   135     3       0       2       202     [B:4]   0       8 8 9 9 9 9 9 8 8 9 9 9 8 8 7 8         0 0 0 0 0 0 0 1 1 0 0 0 0 0 1 0
147     AIfDSo  53      2.534   2.124   177     2       0       0       201     [B:5]   0       11 10 12 11 11 12 12 12 11 11 11 10 11 11 11 10         0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1
148     AIfDSo  55      2.305   2.346   161     4       0       0       222     [B:6]   0       9 9 9 10 10 10 10 10 10 11 10 10 10 11 11 11    1 1 0 0 0 0 0 0 0 0 1 0 1 0 0 0
149     AIfDSo  55      1.861   2.378   130     4       0       0       225     [B:7]   36      7 7 7 9 9 9 9 9 9 8 7 8 8 8 8 8         0 1 2 0 0 0 0 0 0 0 1 0 0 0 0 0
150     AIfDSo  53      2.291   2.167   160     27      0       0       205     [B:8]   0       11 11 10 8 9 10 10 10 10 10 10 10 10 10 10 11   0 1 2 2 2 2 2 2 2 2 2 2 2 2 1 1         speed down
151     AIfDSo  53      2.190   2.146   153     0       0       2       203     [B:9]   0       10 10 10 10 10 8 9 9 9 9 10 9 10 10 10 10       0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0         speed up
152     AIfDSo  55      2.090   2.336   146     3       0       0       221     [B:A]   0       8 10 9 10 10 8 8 9 9 9 9 9 9 9 10 10    1 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0
153     AIfDSo  55      1.961   2.167   137     2       0       0       205     [B:B]   0       9 9 9 9 9 9 9 8 7 8 9 7 8 9 9 9         0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0
154     AIfDSo  56      2.248   2.346   157     20      0       0       222     [B:C]   0       11 9 9 9 10 10 10 10 10 10 10 9 9 10 10 11      0 0 0 0 0 0 2 2 2 2 2 3 3 2 1 1         speed down
155     aIfDSo  55      2.033   2.177   142     3       0       2       206     [B:D]   0       8 9 8 8 9 9 9 9 9 9 10 10 9 10 8 8      1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1
156     AIfDSo  55      2.620   2.283   183     1       0       0       216     [B:E]   0       12 12 12 12 11 11 11 11 11 11 11 12 12 12 11 11         0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0
157     AIfDSo  54      2.033   2.241   142     2       0       0       212     [B:F]   0       9 8 8 8 8 9 9 8 10 10 10 9 9 9 9 9      0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0

I dont/wont measure voltages, as it requires disassembly and has the accompanied risk of breaking stuff, I dont have very steady hands, sorry.
The resistances on R02F's vary between 1.67-1.62k Ohm.

That's enough information for me. Very thanks Smiley

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October 22, 2013, 02:59:47 PM
 #384


Is there any danger i I get 2 separate psu and connect each to one of the PCIE connectors?
There is a little danger of blowing the PSU, if the PSU are not synced. I did that for a few days, but it's best if the PSU are from same manufacturer and are turned on simultaneously.

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October 22, 2013, 03:00:16 PM
 #385



Could this be because they don't get enough power? .... damn should i change PSU? Im absolutly unsure where to start ...

On paper your PSU looks fine. I'm guessing that you're using the two non-modular pcie connectors to power the m-board. If the PSU manufacturer is to be believed then these are on different rails, which should mean that you have up to 80A to play with (960W at 12V) before it cuts out. Unless I'm being an idiot today and not using my calculator right that is Wink.

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October 22, 2013, 03:45:29 PM
 #386


Is there any danger i I get 2 separate psu and connect each to one of the PCIE connectors?
There is a little danger of blowing the PSU, if the PSU are not synced. I did that for a few days, but it's best if the PSU are from same manufacturer and are turned on simultaneously.

agreed. there could also be backfeed between PSUs, where even if one was turned off, it would have a live 12v line to its components due to the other psu, and this could cause any manner of problems (ranging from nuisance like fans/leds staying on up to component failures/magic smoke)

my understanding was that somewhere in the system is a 30A limit. i dont know if its per card/bank/or the entire m-board. if it is for the entire m-board though: 12v*30A = 360W + 20-50% overhead = ~500W max (if overclocking to ~35GH/card = ~45w/card, you might be limited to about 11-12 cards)
however, i am entirely guessing and spitballing numbers based on all forms of annecdotal info. intron would probbaly be the guy to ask/PM about this.

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October 22, 2013, 04:34:01 PM
 #387

   damn I did not get lucky with 5 Hboards got here yesterday and one of hboard DOA already and 4 others hashing about 20 minutes then drop dead to 0 hashrate.   I hit stop then start working again.  look like 4 Hboard very nice but all chips drop to 0 hashrate and anyone know what is going with these Hboards?




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October 22, 2013, 04:44:38 PM
 #388

   damn I did not get lucky with 5 Hboards got here yesterday and one of hboard DOA already and 4 others hashing about 20 minutes then drop dead to 0 hashrate.   I hit stop then start working again.  look like 4 Hboard very nice but all chips drop to 0 hashrate and anyone know what is going with these Hboards?
Check PSU - I had the same situation. Start with 1H board. Also put this dead one as only one to see if its really dead!

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October 22, 2013, 04:51:57 PM
 #389

   damn I did not get lucky with 5 Hboards got here yesterday and one of hboard DOA already and 4 others hashing about 20 minutes then drop dead to 0 hashrate.   I hit stop then start working again.  look like 4 Hboard very nice but all chips drop to 0 hashrate and anyone know what is going with these Hboards?
Check PSU - I had the same situation. Start with 1H board. Also put this dead one as only one to see if its really dead!

  I had run v1 hboard work good but new V1 any of them will drop dead for one hboard only.  I am using Corsair AX860 High Performance 80PLUS Platinum Certified Fully Modular 860 Watt Power Supply.

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October 22, 2013, 05:12:14 PM
 #390

Quote
as for 3 slots per bank, i beleive its related to the 30A limit of a texas instruments chip mentioned by intron a while back. Its got 10-14 pins and there is 1 per bank. Most likely it simply cannot handle more then 3 overclocked cards or 4 cards at 25GH
Sorry, but I think I have to correct this: of course every H-board has its own 30 A voltage regulator to produce the ASIC core voltage from the 12 V. This does not happen on the M-board!
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October 22, 2013, 05:27:08 PM
 #391

It must be something related to power ... !

If I down clock all boards to 52 and remove overclocking ... i get all boards hashing stable



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October 22, 2013, 05:38:21 PM
 #392


Is there any danger i I get 2 separate psu and connect each to one of the PCIE connectors?
I did this with a gpu rig back in the day, read some warnings about it.. but worked out ok for me. I however have no clue how it'd work here.

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October 22, 2013, 06:02:13 PM
 #393


Is there any danger i I get 2 separate psu and connect each to one of the PCIE connectors?
I did this with a gpu rig back in the day, read some warnings about it.. but worked out ok for me. I however have no clue how it'd work here.
the m board shorts the two connectors, so you would end up feeding one PSU with another's output. Generally this is a very bad idea, but almost all modern power supplies hadle it very well.

Different PSUs for different GPU's are safe because the power supplies never get fed by one another.
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October 22, 2013, 09:07:06 PM
 #394


Is there any danger i I get 2 separate psu and connect each to one of the PCIE connectors?
I did this with a gpu rig back in the day, read some warnings about it.. but worked out ok for me. I however have no clue how it'd work here.
the m board shorts the two connectors, so you would end up feeding one PSU with another's output. Generally this is a very bad idea, but almost all modern power supplies hadle it very well.
Yes, but just in case booth PSU work good. If one of them had a problem, e.g. bigger voltage variance, the m-board need to transport all the difference current. This is a bit risky especial because you dont get a fast replacement for the m-board.

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Enrico
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October 22, 2013, 11:15:27 PM
 #395

Has anyone noticed that the version 1.2 h-boards with and without capacitors don't mix well?  

I have two of the original cards with caps that run very happily at 32 Gh/s (with a little pencil-modding) until I add a third card without caps - then they both drop to sub-20 and the third card runs at 28.  Add another new card and all 4 drop in hashrate to sub-20.   Remove the third and fourth card, and the first two return to hashing at 32 Gh/s with no problem.  

I also seem to be able to run 8 non-cap boards by themselves with no trouble - they have a different resistor installed and they each come up and hash at 28-32 Gh/s. However, if I add one of the original boards in place of one of those eight, or in addition to those eight - they all seem to go to crap, regardless of the position the older card is installed in.  Hashrate drops from 220 Gh/s to zero over the course of an hour or so.   Lots of heat, no hashing.

Remove the board with bypass caps from the group without, and the newer ones hash fine on their own.   Remove the new cards, and the old two cards return to hashing just fine on their own.  Mix the two types, and strange, and invariably bad, things happen to hashrates on all of them....

There is some odd incompatibility here.  Did anyone ever figure out WHY the bypass caps were getting too hot and blowing up?
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October 22, 2013, 11:35:09 PM
 #396

Has anyone noticed that the version 1.2 h-boards with and without capacitors don't mix well?  

I have two of the original cards with caps that run very happily at 32 Gh/s (with a little pencil-modding) until I add a third card without caps - then they both drop to sub-20 and the third card runs at 28.  Add another new card and all 4 drop in hashrate to sub-20.   Remove the third and fourth card, and the first two return to hashing at 32 Gh/s with no problem.  

I also seem to be able to run 8 non-cap boards by themselves with no trouble - they have a different resistor installed and they each come up and hash at 28-32 Gh/s. However, if I add one of the original boards in place of one of those eight, or in addition to those eight - they all seem to go to crap, regardless of the position the older card is installed in.  Hashrate drops from 220 Gh/s to zero over the course of an hour or so.   Lots of heat, no hashing.

Remove the board with bypass caps from the group without, and the newer ones hash fine on their own.   Remove the new cards, and the old two cards return to hashing just fine on their own.  Mix the two types, and strange, and invariably bad, things happen to hashrates on all of them....

There is some odd incompatibility here.  Did anyone ever figure out WHY the bypass caps were getting too hot and blowing up?
*Very* good observation.  I'm dealing with something similar here, and I was in such a hurry that I didn't notice the missing caps on these boards.  My unit with mixed boards will hash fine for hours, and then out of nowhere, performance will tank and every chip kicks out miso errors.  Most of the time when this happens, an entire board just "disappears" from the stats (even though the boards further down the line are still recognized).

14u2rp4AqFtN5jkwK944nn741FnfF714m7
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October 23, 2013, 12:00:05 AM
 #397

Has anyone noticed that the version 1.2 h-boards with and without capacitors don't mix well?  

I have two of the original cards with caps that run very happily at 32 Gh/s (with a little pencil-modding) until I add a third card without caps - then they both drop to sub-20 and the third card runs at 28.  Add another new card and all 4 drop in hashrate to sub-20.   Remove the third and fourth card, and the first two return to hashing at 32 Gh/s with no problem.  

I also seem to be able to run 8 non-cap boards by themselves with no trouble - they have a different resistor installed and they each come up and hash at 28-32 Gh/s. However, if I add one of the original boards in place of one of those eight, or in addition to those eight - they all seem to go to crap, regardless of the position the older card is installed in.  Hashrate drops from 220 Gh/s to zero over the course of an hour or so.   Lots of heat, no hashing.

Remove the board with bypass caps from the group without, and the newer ones hash fine on their own.   Remove the new cards, and the old two cards return to hashing just fine on their own.  Mix the two types, and strange, and invariably bad, things happen to hashrates on all of them....

There is some odd incompatibility here.  Did anyone ever figure out WHY the bypass caps were getting too hot and blowing up?

I just recieved my final 3 h-boards from Mbp today and they are capless. I have the original V1 M-board and original software, no changes from day 1 other than I lost 1 sd card and a pi. My observations so far on this 2 hour run are this.
My 1 original card with caps was pencil modded to 29-30 GH/s
I installed the new cards behind that one and they are all holding fairly steady.
I did not pencil mod the capless cards yet these are as received.



Card 1 is my pencil mod which never broke 30 before now. It hits 32 now.
The rest are holding steady at 30 to 31 with the occasional 29.
Again, These have only been online a couple of hours. I will update If they start doing stupid stuff.

Man, I wish I could change my avatar!
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October 23, 2013, 12:06:44 AM
 #398

Well, that looks good.  I've got 7 of the new capless cards hashing well, but have problems when I try to mix-and-match in either of my two older cards...




BTW - the hashrate improves slightly on the remaining cards as I remove some.  Maybe 4 is optimum Huh


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October 23, 2013, 12:11:59 AM
 #399

Has anyone noticed that the version 1.2 h-boards with and without capacitors don't mix well?  

I have two of the original cards with caps that run very happily at 32 Gh/s (with a little pencil-modding) until I add a third card without caps - then they both drop to sub-20 and the third card runs at 28.  Add another new card and all 4 drop in hashrate to sub-20.   Remove the third and fourth card, and the first two return to hashing at 32 Gh/s with no problem.  

I also seem to be able to run 8 non-cap boards by themselves with no trouble - they have a different resistor installed and they each come up and hash at 28-32 Gh/s. However, if I add one of the original boards in place of one of those eight, or in addition to those eight - they all seem to go to crap, regardless of the position the older card is installed in.  Hashrate drops from 220 Gh/s to zero over the course of an hour or so.   Lots of heat, no hashing.

Remove the board with bypass caps from the group without, and the newer ones hash fine on their own.   Remove the new cards, and the old two cards return to hashing just fine on their own.  Mix the two types, and strange, and invariably bad, things happen to hashrates on all of them....

There is some odd incompatibility here.  Did anyone ever figure out WHY the bypass caps were getting too hot and blowing up?
*Very* good observation.  I'm dealing with something similar here, and I was in such a hurry that I didn't notice the missing caps on these boards.  My unit with mixed boards will hash fine for hours, and then out of nowhere, performance will tank and every chip kicks out miso errors.  Most of the time when this happens, an entire board just "disappears" from the stats (even though the boards further down the line are still recognized).

I have 1 of each style on a V2 m-board. both are overclocked into the 39-40GH range and in a new cooling arrangment so its hard to factor out some variables, but they seem to run well together, though every 4-6 hours one board will drop to 10-50% speeds until the miner start command is used. (crontab does it every 2hrs). The issue appears to be related to the overclock though. 40-41GH was stable for me with only a single card, but now im challenged to get it past 38.5GH due to the re-arranged cooling and extra card

24" PCI-E cables with 16AWG wires and stripped ends - great for server PSU mods, best prices https://bitcointalk.org/index.php?topic=563461 also selling 6" M-F-M PCIe splitters and PCIe-PCIe
No longer a wannabe - now an ASIC owner!
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October 23, 2013, 01:26:22 AM
 #400

   Did guys do RMA for Hboard drop to 0 hashrate and need to press stop then start?   I got my Hboards yesterday and 4 of them ran together hash good then drop to 0 hash in about 10 minutes and hboards get very hot.   My starter kit hash alone fine and no problem at all.


No one know why new Hboard is very very hot?

ps: Eu post also got problem with new Hboards too.
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