Технологии

Не, в конкретном случае источник напряжения. И управляется по I²C. Но напряжение между чипами делится уже в зависимости от режимов работы. При этом каждый чип из 140 управляется и мониторится по общей шине платы. Как-то поймал сбой БП (возможно, скачёк напряжения в сети) - силовое питание пропало, а питание платы управления - нет. В лог вылезли отказы мониторинга температуры чипов в первую очередь. Во вторую - сообщения об отсуствии результатов вычислений. Не долго думая, плата управления дала команду на шатдаун плат и перезапустила всё без моего вмешательства. Кстати, те небольшие чёрненькие детальки на каждую четвёрку чипов, я думал диоды, оказывается полимерные электролиты - фильтруют питаие четвёрки в гирлянде. Больше никаких "силовых" элементов питания! Никаких PoL-стабилизаторов и прочей хрени. Керамика не в счёт. Питание чипа стабилизируется тактовой частотой, может, ещё чем. Всё, о чём написал - из логов. На счёт конкретной модели конкретного производителя - не знаю, но есть майнеры, которые адаптируются даже под недостаток напряжения в питающей сети переменного тока: при низком напряжении в сети снижают свою потребляемую мощность и, соответственно, производительность. Вот, к примеру, подбор тактовой частоты для достижения заданной мощности: Nov 16 08:55:24 InnoMiner cgminer[991]: set temperature target to 70 Nov 16 08:55:29 InnoMiner cgminer[991]: current power:2538.753662 temp:46.878571 temp_last1:46.878571 temp_last2:46.878571 fan:20 Nov 16 08:55:35 InnoMiner cgminer[991]: current power:2554.814453 temp:49.885715 temp_last1:46.878571 temp_last2:46.878571 fan:20 Nov 16 08:55:40 InnoMiner cgminer[991]: current power:2556.595947 temp:51.492859 temp_last1:49.885715 temp_last2:46.878571 fan:20 Nov 16 08:55:45 InnoMiner cgminer[991]: current power:2586.792480 temp:53.750000 temp_last1:51.492859 temp_last2:49.885715 fan:20 Nov 16 08:55:51 InnoMiner cgminer[991]: current power:2572.524414 temp:56.642857 temp_last1:53.750000 temp_last2:51.492859 fan:20 Nov 16 08:55:57 InnoMiner cgminer[991]: current power:2602.996826 temp:62.321430 temp_last1:56.642857 temp_last2:53.750000 fan:20 Nov 16 08:56:02 InnoMiner cgminer[991]: current power:2619.057617 temp:62.321430 temp_last1:62.321430 temp_last2:56.642857 fan:20 Nov 16 08:56:08 InnoMiner cgminer[991]: current power:2651.179199 temp:65.014282 temp_last1:62.321430 temp_last2:62.321430 fan:20 Nov 16 08:56:13 InnoMiner cgminer[991]: current power:2636.956055 temp:67.550003 temp_last1:65.014282 temp_last2:62.321430 fan:20 Nov 16 08:56:18 InnoMiner cgminer[991]: current power:2701.674316 temp:70.064285 temp_last1:67.550003 temp_last2:65.014282 fan:20 Nov 16 08:56:24 InnoMiner cgminer[991]: current power:2683.587646 temp:74.785713 temp_last1:70.064285 temp_last2:67.550003 fan:50 Nov 16 08:56:30 InnoMiner cgminer[991]: current power:2715.852539 temp:74.785713 temp_last1:74.785713 temp_last2:70.064285 fan:55 Nov 16 08:56:35 InnoMiner cgminer[991]: current power:2699.791748 temp:76.349998 temp_last1:74.785713 temp_last2:74.785713 fan:80 Nov 16 08:56:41 InnoMiner cgminer[991]: current power:2750.321045 temp:76.878571 temp_last1:76.349998 temp_last2:74.785713 fan:95 Nov 16 08:56:46 InnoMiner cgminer[991]: current power:2685.458984 temp:76.785713 temp_last1:76.878571 temp_last2:76.349998 fan:95 Nov 16 08:56:51 InnoMiner cgminer[991]: current power:2667.526855 temp:74.650002 temp_last1:76.785713 temp_last2:76.878571 fan:80 Nov 16 08:56:57 InnoMiner cgminer[991]: current power:2715.852539 temp:74.650002 temp_last1:74.650002 temp_last2:76.785713 fan:85 Nov 16 08:57:03 InnoMiner cgminer[991]: current power:2699.791748 temp:73.692856 temp_last1:74.650002 temp_last2:74.650002 fan:80 Nov 16 08:57:08 InnoMiner cgminer[991]: current power:2669.386963 temp:73.064285 temp_last1:73.692856 temp_last2:74.650002 fan:80 Nov 16 08:57:14 InnoMiner cgminer[991]: current power:2669.386963 temp:72.542854 temp_last1:73.064285 temp_last2:73.692856 fan:80 Nov 16 08:57:19 InnoMiner cgminer[991]: current power:2701.674316 temp:71.871429 temp_last1:72.542854 temp_last2:73.064285 fan:75 Nov 16 08:57:24 InnoMiner cgminer[991]: current power:2699.791748 temp:71.871429 temp_last1:71.871429 temp_last2:72.542854 fan:80 Nov 16 08:57:30 InnoMiner cgminer[991]: current power:2653.028076 temp:71.657143 temp_last1:71.871429 temp_last2:71.871429 fan:80 Nov 16 08:57:35 InnoMiner cgminer[991]: current power:2653.028076 temp:71.492859 temp_last1:71.657143 temp_last2:71.871429 fan:80 Nov 16 08:57:41 InnoMiner cgminer[991]: current power:2667.526855 temp:71.328575 temp_last1:71.492859 temp_last2:71.657143 fan:80 Nov 16 08:57:47 InnoMiner cgminer[991]: current power:2733.961914 temp:70.821426 temp_last1:71.328575 temp_last2:71.492859 fan:75 Nov 16 08:57:52 InnoMiner cgminer[991]: current power:2685.458984 temp:70.821426 temp_last1:70.821426 temp_last2:71.328575 fan:75 Nov 16 08:57:57 InnoMiner cgminer[991]: current power:2669.386963 temp:70.735718 temp_last1:70.821426 temp_last2:70.821426 fan:75 Nov 16 08:57:57 InnoMiner cgminer[991]: Temp is close to target! Begin to do power calibration! Nov 16 08:57:57 InnoMiner cgminer[991]: current power:2669.000000 target power:3366.336670 target wall power:3550 Nov 16 08:57:57 InnoMiner cgminer[991]: chain0: chip0 set pll 318(1098MHz) -> 319(1104MHz) Nov 16 08:57:57 InnoMiner cgminer[991]: chain1: chip0 set pll 318(1098MHz) -> 319(1104MHz) Nov 16 08:57:57 InnoMiner cgminer[991]: chain2: chip0 set pll 318(1098MHz) -> 319(1104MHz) Nov 16 08:57:59 InnoMiner cgminer[991]: current power: 2669.386963 target power:3366.336670 Nov 16 08:57:59 InnoMiner cgminer[991]: chain0: chip0 set pll 319(1104MHz) -> 320(1110MHz) Nov 16 08:57:59 InnoMiner cgminer[991]: chain1: chip0 set pll 319(1104MHz) -> 320(1110MHz) Nov 16 08:57:59 InnoMiner cgminer[991]: chain2: chip0 set pll 319(1104MHz) -> 320(1110MHz) Nov 16 08:58:02 InnoMiner cgminer[991]: current power: 2715.852539 target power:3366.336670 Nov 16 08:58:02 InnoMiner cgminer[991]: chain0: chip0 set pll 320(1110MHz) -> 321(1116MHz) Nov 16 08:58:02 InnoMiner cgminer[991]: chain1: chip0 set pll 320(1110MHz) -> 321(1116MHz) Nov 16 08:58:02 InnoMiner cgminer[991]: chain2: chip0 set pll 320(1110MHz) -> 321(1116MHz) Nov 16 08:58:04 InnoMiner cgminer[991]: current power: 2733.961914 target power:3366.336670 Nov 16 08:58:04 InnoMiner cgminer[991]: chain0: chip0 set pll 321(1116MHz) -> 322(1122MHz) Nov 16 08:58:04 InnoMiner cgminer[991]: chain1: chip0 set pll 321(1116MHz) -> 322(1122MHz) Nov 16 08:58:04 InnoMiner cgminer[991]: chain2: chip0 set pll 321(1116MHz) -> 322(1122MHz) Nov 16 08:58:06 InnoMiner cgminer[991]: current power: 2750.321045 target power:3366.336670 Nov 16 08:58:06 InnoMiner cgminer[991]: chain0: chip0 set pll 322(1122MHz) -> 323(1128MHz) Nov 16 08:58:06 InnoMiner cgminer[991]: chain1: chip0 set pll 322(1122MHz) -> 323(1128MHz) Nov 16 08:58:06 InnoMiner cgminer[991]: chain2: chip0 set pll 322(1122MHz) -> 323(1128MHz) Nov 16 08:58:08 InnoMiner cgminer[991]: current power: 2733.961914 target power:3366.336670 Nov 16 08:58:08 InnoMiner cgminer[991]: chain0: chip0 set pll 323(1128MHz) -> 324(1134MHz) Nov 16 08:58:09 InnoMiner cgminer[991]: chain1: chip0 set pll 323(1128MHz) -> 324(1134MHz) Nov 16 08:58:09 InnoMiner cgminer[991]: chain2: chip0 set pll 323(1128MHz) -> 324(1134MHz) Nov 16 08:58:11 InnoMiner cgminer[991]: current power: 2748.404297 target power:3366.336670 Nov 16 08:58:11 InnoMiner cgminer[991]: chain0: chip0 set pll 324(1134MHz) -> 325(1140MHz) Nov 16 08:58:11 InnoMiner cgminer[991]: chain1: chip0 set pll 324(1134MHz) -> 325(1140MHz) Nov 16 08:58:11 InnoMiner cgminer[991]: chain2: chip0 set pll 324(1134MHz) -> 325(1140MHz) Nov 16 08:58:13 InnoMiner cgminer[991]: current power: 2780.669434 target power:3366.336670 Nov 16 08:58:13 InnoMiner cgminer[991]: chain0: chip0 set pll 325(1140MHz) -> 326(1146MHz) Nov 16 08:58:13 InnoMiner cgminer[991]: chain1: chip0 set pll 325(1140MHz) -> 326(1146MHz) Nov 16 08:58:13 InnoMiner cgminer[991]: chain2: chip0 set pll 325(1140MHz) -> 326(1146MHz) Nov 16 08:58:15 InnoMiner cgminer[991]: current power: 2813.364502 target power:3366.336670 Nov 16 08:58:15 InnoMiner cgminer[991]: chain0: chip0 set pll 326(1146MHz) -> 327(1152MHz) Nov 16 08:58:15 InnoMiner cgminer[991]: chain1: chip0 set pll 326(1146MHz) -> 327(1152MHz) Nov 16 08:58:15 InnoMiner cgminer[991]: chain2: chip0 set pll 326(1146MHz) -> 327(1152MHz) Nov 16 08:58:18 InnoMiner cgminer[991]: current power: 2815.326416 target power:3366.336670 Nov 16 08:58:18 InnoMiner cgminer[991]: chain0: chip0 set pll 327(1152MHz) -> 328(1158MHz) Nov 16 08:58:18 InnoMiner cgminer[991]: chain1: chip0 set pll 327(1152MHz) -> 328(1158MHz) Nov 16 08:58:18 InnoMiner cgminer[991]: chain2: chip0 set pll 327(1152MHz) -> 328(1158MHz) Nov 16 08:58:20 InnoMiner cgminer[991]: current power: 2813.364502 target power:3366.336670 Nov 16 08:58:20 InnoMiner cgminer[991]: chain0: chip0 set pll 328(1158MHz) -> 329(1164MHz) Nov 16 08:58:20 InnoMiner cgminer[991]: chain1: chip0 set pll 328(1158MHz) -> 329(1164MHz) Nov 16 08:58:20 InnoMiner cgminer[991]: chain2: chip0 set pll 328(1158MHz) -> 329(1164MHz) Nov 16 08:58:22 InnoMiner cgminer[991]: current power: 2847.757568 target power:3366.336670 Nov 16 08:58:22 InnoMiner cgminer[991]: chain0: chip0 set pll 329(1164MHz) -> 330(1170MHz) Nov 16 08:58:22 InnoMiner cgminer[991]: chain1: chip0 set pll 329(1164MHz) -> 330(1170MHz) Nov 16 08:58:22 InnoMiner cgminer[991]: chain2: chip0 set pll 329(1164MHz) -> 330(1170MHz) Nov 16 08:58:24 InnoMiner cgminer[991]: current power: 2878.468262 target power:3366.336670 Nov 16 08:58:24 InnoMiner cgminer[991]: chain0: chip0 set pll 330(1170MHz) -> 331(1176MHz) Nov 16 08:58:24 InnoMiner cgminer[991]: chain1: chip0 set pll 330(1170MHz) -> 331(1176MHz) Nov 16 08:58:24 InnoMiner cgminer[991]: chain2: chip0 set pll 330(1170MHz) -> 331(1176MHz) Nov 16 08:58:27 InnoMiner cgminer[991]: current power: 2861.977295 target power:3366.336670 Nov 16 08:58:27 InnoMiner cgminer[991]: chain0: chip0 set pll 331(1176MHz) -> 332(1182MHz) Nov 16 08:58:27 InnoMiner cgminer[991]: chain1: chip0 set pll 331(1176MHz) -> 332(1182MHz) Nov 16 08:58:27 InnoMiner cgminer[991]: chain2: chip0 set pll 331(1176MHz) -> 332(1182MHz) Nov 16 08:58:29 InnoMiner cgminer[991]: current power: 2896.690918 target power:3366.336670 Nov 16 08:58:29 InnoMiner cgminer[991]: chain0: chip0 set pll 332(1182MHz) -> 333(1188MHz) Nov 16 08:58:29 InnoMiner cgminer[991]: chain1: chip0 set pll 332(1182MHz) -> 333(1188MHz) Nov 16 08:58:29 InnoMiner cgminer[991]: chain2: chip0 set pll 332(1182MHz) -> 333(1188MHz) Nov 16 08:58:31 InnoMiner cgminer[991]: current power: 2911.020020 target power:3366.336670 Nov 16 08:58:31 InnoMiner cgminer[991]: chain0: chip0 set pll 333(1188MHz) -> 334(1194MHz) Nov 16 08:58:31 InnoMiner cgminer[991]: chain1: chip0 set pll 333(1188MHz) -> 334(1194MHz) Nov 16 08:58:31 InnoMiner cgminer[991]: chain2: chip0 set pll 333(1188MHz) -> 334(1194MHz) Nov 16 08:58:34 InnoMiner cgminer[991]: current power: 2911.020020 target power:3366.336670 Nov 16 08:58:34 InnoMiner cgminer[991]: chain0: chip0 set pll 334(1194MHz) -> 335(1200MHz) Nov 16 08:58:34 InnoMiner cgminer[991]: chain1: chip0 set pll 334(1194MHz) -> 335(1200MHz) Nov 16 08:58:34 InnoMiner cgminer[991]: chain2: chip0 set pll 334(1194MHz) -> 335(1200MHz) Nov 16 08:58:36 InnoMiner cgminer[991]: current power: 2978.486084 target power:3366.336670 Nov 16 08:58:36 InnoMiner cgminer[991]: chain0: chip0 set pll 335(1200MHz) -> 336(1212MHz) Nov 16 08:58:36 InnoMiner cgminer[991]: chain1: chip0 set pll 335(1200MHz) -> 336(1212MHz) Nov 16 08:58:36 InnoMiner cgminer[991]: chain2: chip0 set pll 335(1200MHz) -> 336(1212MHz) Nov 16 08:58:38 InnoMiner cgminer[991]: current power: 2992.758057 target power:3366.336670 Nov 16 08:58:38 InnoMiner cgminer[991]: chain0: chip0 set pll 336(1212MHz) -> 337(1224MHz) Nov 16 08:58:38 InnoMiner cgminer[991]: chain1: chip0 set pll 336(1212MHz) -> 337(1224MHz) Nov 16 08:58:38 InnoMiner cgminer[991]: chain2: chip0 set pll 336(1212MHz) -> 337(1224MHz) Nov 16 08:58:40 InnoMiner cgminer[991]: current power: 3027.706299 target power:3366.336670 Nov 16 08:58:40 InnoMiner cgminer[991]: chain0: chip0 set pll 337(1224MHz) -> 338(1236MHz) Nov 16 08:58:40 InnoMiner cgminer[991]: chain1: chip0 set pll 337(1224MHz) -> 338(1236MHz) Nov 16 08:58:41 InnoMiner cgminer[991]: chain2: chip0 set pll 337(1224MHz) -> 338(1236MHz) Nov 16 08:58:43 InnoMiner cgminer[991]: current power: 3058.435303 target power:3366.336670 Nov 16 08:58:43 InnoMiner cgminer[991]: chain0: chip0 set pll 338(1236MHz) -> 339(1248MHz) Nov 16 08:58:43 InnoMiner cgminer[991]: chain1: chip0 set pll 338(1236MHz) -> 339(1248MHz) Nov 16 08:58:43 InnoMiner cgminer[991]: chain2: chip0 set pll 338(1236MHz) -> 339(1248MHz) Nov 16 08:58:45 InnoMiner cgminer[991]: current power: 3093.572998 target power:3366.336670 Nov 16 08:58:45 InnoMiner cgminer[991]: chain0: chip0 set pll 339(1248MHz) -> 340(1260MHz) Nov 16 08:58:45 InnoMiner cgminer[991]: chain1: chip0 set pll 339(1248MHz) -> 340(1260MHz) Nov 16 08:58:45 InnoMiner cgminer[991]: chain2: chip0 set pll 339(1248MHz) -> 340(1260MHz) Nov 16 08:58:47 InnoMiner cgminer[991]: current power: 3157.381104 target power:3366.336670 Nov 16 08:58:47 InnoMiner cgminer[991]: chain0: chip0 set pll 340(1260MHz) -> 341(1272MHz) Nov 16 08:58:47 InnoMiner cgminer[991]: chain1: chip0 set pll 340(1260MHz) -> 341(1272MHz) Nov 16 08:58:47 InnoMiner cgminer[991]: chain2: chip0 set pll 340(1260MHz) -> 341(1272MHz) Nov 16 08:58:50 InnoMiner cgminer[991]: current power: 3173.872314 target power:3366.336670 Nov 16 08:58:50 InnoMiner cgminer[991]: chain0: chip0 set pll 341(1272MHz) -> 342(1284MHz) Nov 16 08:58:50 InnoMiner cgminer[991]: chain1: chip0 set pll 341(1272MHz) -> 342(1284MHz) Nov 16 08:58:50 InnoMiner cgminer[991]: chain2: chip0 set pll 341(1272MHz) -> 342(1284MHz) Nov 16 08:58:52 InnoMiner cgminer[991]: current power: 3176.085693 target power:3366.336670 Nov 16 08:58:52 InnoMiner cgminer[991]: chain0: chip0 set pll 342(1284MHz) -> 343(1296MHz) Nov 16 08:58:52 InnoMiner cgminer[991]: chain1: chip0 set pll 342(1284MHz) -> 343(1296MHz) Nov 16 08:58:52 InnoMiner cgminer[991]: chain2: chip0 set pll 342(1284MHz) -> 343(1296MHz) Nov 16 08:58:54 InnoMiner cgminer[991]: current power: 3190.363281 target power:3366.336670 Nov 16 08:58:54 InnoMiner cgminer[991]: chain0: chip0 set pll 343(1296MHz) -> 344(1308MHz) Nov 16 08:58:54 InnoMiner cgminer[991]: chain1: chip0 set pll 343(1296MHz) -> 344(1308MHz) Nov 16 08:58:54 InnoMiner cgminer[991]: chain2: chip0 set pll 343(1296MHz) -> 344(1308MHz) Nov 16 08:58:56 InnoMiner cgminer[991]: current power: 3242.239014 target power:3366.336670 Nov 16 08:58:56 InnoMiner cgminer[991]: chain0: chip0 set pll 344(1308MHz) -> 345(1320MHz) Nov 16 08:58:56 InnoMiner cgminer[991]: chain1: chip0 set pll 344(1308MHz) -> 345(1320MHz) Nov 16 08:58:56 InnoMiner cgminer[991]: chain2: chip0 set pll 344(1308MHz) -> 345(1320MHz) Nov 16 08:58:58 InnoMiner cgminer[991]: current power: 3289.882812 target power:3366.336670 Nov 16 08:58:58 InnoMiner cgminer[991]: chain0: chip0 set pll 345(1320MHz) -> 346(1332MHz) Nov 16 08:58:58 InnoMiner cgminer[991]: chain1: chip0 set pll 345(1320MHz) -> 346(1332MHz) Nov 16 08:58:58 InnoMiner cgminer[991]: chain2: chip0 set pll 345(1320MHz) -> 346(1332MHz) Nov 16 08:59:01 InnoMiner cgminer[991]: current power: 3341.827881 target power:3366.336670 Nov 16 08:59:01 InnoMiner cgminer[991]: chain0: chip0 set pll 346(1332MHz) -> 347(1344MHz) Nov 16 08:59:01 InnoMiner cgminer[991]: chain1: chip0 set pll 346(1332MHz) -> 347(1344MHz) Nov 16 08:59:01 InnoMiner cgminer[991]: chain2: chip0 set pll 346(1332MHz) -> 347(1344MHz) Nov 16 08:59:03 InnoMiner cgminer[991]: current power: 3356.133545 target power:3366.336670 Nov 16 08:59:03 InnoMiner cgminer[991]: chain0: chip0 set pll 347(1344MHz) -> 348(1356MHz) Nov 16 08:59:03 InnoMiner cgminer[991]: chain1: chip0 set pll 347(1344MHz) -> 348(1356MHz) Nov 16 08:59:03 InnoMiner cgminer[991]: chain2: chip0 set pll 347(1344MHz) -> 348(1356MHz) Nov 16 08:59:05 InnoMiner cgminer[991]: current power: 3389.689209 target power:3366.336670 Nov 16 08:59:05 InnoMiner cgminer[991]: chain0: chip0 set pll 348(1356MHz) -> 347(1344MHz) Nov 16 08:59:05 InnoMiner cgminer[991]: chain1: chip0 set pll 348(1356MHz) -> 347(1344MHz) Nov 16 08:59:05 InnoMiner cgminer[991]: chain2: chip0 set pll 348(1356MHz) -> 347(1344MHz) Nov 16 08:59:08 InnoMiner cgminer[991]: the final K value is 225.000000 after freq increase Nov 16 08:59:08 InnoMiner cgminer[991]: T1 detect finish