I seriously doubt it would be worth using as a space heater, the heating efficiency is going to be super low and you can't control the temperature. The bitcoin that it will generate is maybe $5 a month. So yeah I would vote to just buy a real heater.
Depends on how you look at it. First off, heat is heat. Yes it's what only 350W or so but that still equates to a normal small heater running at the same power. Does it 'pay for itself' or earn more than the electric bill for it running? For any Ant model lower than an under-volted/clocked s7, hell no. However if you *are* going to run a space heater anyway during cold weather, what a miner earns does offset the electric bill for the heat. So win-win there. One of my so far good R4's is running in my office just for that reason (and earns more than it eats)  |
|
|
|
On a different note: Today I got a bill from Michigan Dept. of Treasury regarding 5x s7 miners I got from Bitmain in Jan-Feb 2016. Seems that when Customs gets involves (1 order was for $3,725, the other was for $3,100) and you have to pay Duty, that imported goods information is reported to your state. Now Michigan wants $409.50 out of state/internet purchase Use Tax for the miners I brought in  Just another reason to stay under the Customs Duty-free limits... |
|
|
|
Definitely ouch.  Its very weird. my S9 has a AVR. but it still got burned. My pocket is hurting now. I investigated your pictures of failed hash boards. I think the failure was outside to S9 and board is NOT DAMAGED (except connectors). From your pictures it is clearly visible that only GND is affected. Also controller board's GND is burned. It has nothing to do with AVR or PSU, the problem is outside - check all possible things which was able to touch between PSU's case and S9's case. Carefully investigate what caused high current flow between PSU and S9 case. Maybe S9 touched something at AC mains. Hope it will save you some money. Anyway, this failure is very specific and adding fuses to +12V will not prevent this kind of failure (since this failure is on GND line which remains unfused). And to that I must add that the GND lines MUST remain un-fused for safety! If is the DC return (aka GND) lines that fried then something is seriously wrong with the AC power setup. Yes placing a fuse there would save the wiring/connectors BUT once the fuses in a return line blow then the case of the miner or PSU is going be be live with the power -- possibly a lethal situation. Query: What are the miners sitting on? A grounded metal shelf? If so, any signs of arc damage on the miner/shelf area? |
|
|
|
Anyone have ideas on why Awesome is displaying Avalons as I showed in https://bitcointalk.org/index.php?topic=676942.msg17968629#msg17968629 ? More to the point I guess is, are the miners *really* hitting those blistering speeds even if only for a brief time? I've seen spikes as high as 60TH from the trio of 721's. Since the real throughput as shown by the Avalon GUI and confirmed by CKpool stats is 18-20THs it would be nice if Awesome graphing could reflect that... Is the numbers you see in the main window of Awesome Miner also jumping like that? So there is a variation on the 5s hash rate value if you look at it for a couple of minutes? Ja. They jump BIG time. I've seen the 5sec avg go as low as 6THs or so and on the next refresh it's over 27THs and higher... What Canaan's GUI shows of course bangs a round a couple THs but nowhere near what the raw readouts must be...  Any way to filter it? I've played with Awesome's refresh time going from default 5-sec to 1 min, no change. Avalon 3x 721 ApiReport: Version: 2.2.4
API command: config
{
"STATUS": [
{
"STATUS": "S",
"When": 1471333798,
"Code": 33,
"Msg": "CGMiner config",
"Description": "cgminer 4.9.2"
}
],
"CONFIG": [
{
"ASC Count": 1,
"PGA Count": 0,
"Pool Count": 3,
"Strategy": "Failover",
"Log Interval": 5,
"Device Code": "",
"OS": "Linux",
"Hotplug": 5
}
],
"id": 1
}
API command: summary
{
"STATUS": [
{
"STATUS": "S",
"When": 1471333798,
"Code": 11,
"Msg": "Summary",
"Description": "cgminer 4.9.2"
}
],
"SUMMARY": [
{
"Elapsed": 342566,
"MHS av": 19037365.27,
"MHS 5s": 25046869.41,
"MHS 1m": 22602272.17,
"MHS 5m": 19950434.44,
"MHS 15m": 19364680.34,
"Found Blocks": 0,
"Getworks": 11696,
"Accepted": 98315,
"Rejected": 826,
"Hardware Errors": 12982,
"Utility": 17.22,
"Discarded": 183510,
"Stale": 49,
"Get Failures": 3,
"Local Work": 72212184,
"Remote Failures": 2,
"Network Blocks": 651,
"Total MH": 6521558360304.0,
"Work Utility": 268840.08,
"Difficulty Accepted": 1518418645.0,
"Difficulty Rejected": 12795509.0,
"Difficulty Stale": 315569.0,
"Best Share": 5930165311,
"Device Hardware%": 0.0008,
"Device Rejected%": 0.8336,
"Pool Rejected%": 0.8355,
"Pool Stale%": 0.0206,
"Last getwork": 1471333798
}
],
"id": 1
}
API command: privileged
{
"STATUS": [
{
"STATUS": "S",
"When": 1471333798,
"Code": 46,
"Msg": "Privileged access OK",
"Description": "cgminer 4.9.2"
}
],
"id": 1
}
API command: devs
{
"STATUS": [
{
"STATUS": "S",
"When": 1471333798,
"Code": 9,
"Msg": "1 ASC(s)",
"Description": "cgminer 4.9.2"
}
],
"DEVS": [
{
"ASC": 0,
"Name": "AV7",
"ID": 0,
"Enabled": "Y",
"Status": "Alive",
"Temperature": 36.58,
"MHS av": 19037928.29,
"MHS 5s": 25046869.41,
"MHS 1m": 22602272.17,
"MHS 5m": 19950434.44,
"MHS 15m": 19364680.34,
"Accepted": 98315,
"Rejected": 826,
"Hardware Errors": 12982,
"Utility": 17.22,
"Last Share Pool": 0,
"Last Share Time": 1471333797,
"Total MH": 6521558360304.0,
"Diff1 Work": 1534925500,
"Difficulty Accepted": 1518418645.0,
"Difficulty Rejected": 12795509.0,
"Last Share Difficulty": 14804.0,
"No Device": false,
"Last Valid Work": 1471333798,
"Device Hardware%": 0.0008,
"Device Rejected%": 0.8336,
"Device Elapsed": 342556
}
],
"id": 1
}
API command: pools
{
"STATUS": [
{
"STATUS": "S",
"When": 1471333798,
"Code": 7,
"Msg": "3 Pool(s)",
"Description": "cgminer 4.9.2"
}
],
"POOLS": [
{
"POOL": 0,
"URL": "stratum+tcp://stratum.kano.is:3333",
"Status": "Alive",
"Priority": 0,
"Quota": 1,
"Long Poll": "N",
"Getworks": 11694,
"Accepted": 98315,
"Rejected": 826,
"Works": 3080713,
"Discarded": 183510,
"Stale": 49,
"Get Failures": 3,
"Remote Failures": 2,
"User": "Fuzzy.Avalon721_1",
"Last Share Time": 1471333797,
"Diff1 Shares": 1534925500,
"Proxy Type": "",
"Proxy": "",
"Difficulty Accepted": 1518418645.0,
"Difficulty Rejected": 12795509.0,
"Difficulty Stale": 315569.0,
"Last Share Difficulty": 14804.0,
"Work Difficulty": 14804.0,
"Has Stratum": true,
"Stratum Active": true,
"Stratum URL": "stratum.kano.is",
"Stratum Difficulty": 14804.0,
"Has GBT": false,
"Best Share": 5930165311,
"Pool Rejected%": 0.8355,
"Pool Stale%": 0.0206,
"Bad Work": 0,
"Current Block Height": 455006,
"Current Block Version": 536870912
},
{
"POOL": 1,
"URL": "stratum+tcp://stratum80.kano.is:80",
"Status": "Alive",
"Priority": 1,
"Quota": 1,
"Long Poll": "N",
"Getworks": 1,
"Accepted": 0,
"Rejected": 0,
"Works": 0,
"Discarded": 0,
"Stale": 0,
"Get Failures": 0,
"Remote Failures": 0,
"User": "Fuzzy.Avalon721_1",
"Last Share Time": 0,
"Diff1 Shares": 0,
"Proxy Type": "",
"Proxy": "",
"Difficulty Accepted": 0.0,
"Difficulty Rejected": 0.0,
"Difficulty Stale": 0.0,
"Last Share Difficulty": 0.0,
"Work Difficulty": 0.0,
"Has Stratum": true,
"Stratum Active": false,
"Stratum URL": "",
"Stratum Difficulty": 0.0,
"Has GBT": false,
"Best Share": 0,
"Pool Rejected%": 0.0,
"Pool Stale%": 0.0,
"Bad Work": 0,
"Current Block Height": 0,
"Current Block Version": 536870912
},
{
"POOL": 2,
"URL": "stratum+tcp://stratum81.kano.is:81",
"Status": "Alive",
"Priority": 2,
"Quota": 1,
"Long Poll": "N",
"Getworks": 1,
"Accepted": 0,
"Rejected": 0,
"Works": 0,
"Discarded": 0,
"Stale": 0,
"Get Failures": 0,
"Remote Failures": 0,
"User": "Fuzzy.Avalon721_1",
"Last Share Time": 0,
"Diff1 Shares": 0,
"Proxy Type": "",
"Proxy": "",
"Difficulty Accepted": 0.0,
"Difficulty Rejected": 0.0,
"Difficulty Stale": 0.0,
"Last Share Difficulty": 0.0,
"Work Difficulty": 0.0,
"Has Stratum": true,
"Stratum Active": false,
"Stratum URL": "",
"Stratum Difficulty": 0.0,
"Has GBT": false,
"Best Share": 0,
"Pool Rejected%": 0.0,
"Pool Stale%": 0.0,
"Bad Work": 0,
"Current Block Height": 0,
"Current Block Version": 536870912
}
],
"id": 1
}
API command: coin
{
"STATUS": [
{
"STATUS": "S",
"When": 1471333798,
"Code": 78,
"Msg": "CGMiner coin",
"Description": "cgminer 4.9.2"
}
],
"COIN": [
{
"Hash Method": "sha256",
"Current Block Time": 1471332690.861985,
"Current Block Hash": "00000000000000000217e2b5ac45ebc7ed3925dd27fc7bda491bdc7fe70375dd",
"LP": true,
"Network Difficulty": 440779902286.58917
}
],
"id": 1
}
API command: notify
{
"STATUS": [
{
"STATUS": "S",
"When": 1471333798,
"Code": 60,
"Msg": "Notify",
"Description": "cgminer 4.9.2"
}
],
"NOTIFY": [
{
"NOTIFY": 0,
"Name": "AV7",
"ID": 0,
"Last Well": 1471333798,
"Last Not Well": 0,
"Reason Not Well": "None",
"*Thread Fail Init": 0,
"*Thread Zero Hash": 0,
"*Thread Fail Queue": 0,
"*Dev Sick Idle 60s": 0,
"*Dev Dead Idle 600s": 0,
"*Dev Nostart": 0,
"*Dev Over Heat": 0,
"*Dev Thermal Cutoff": 0,
"*Dev Comms Error": 0,
"*Dev Throttle": 0
}
],
"id": 1
}
API command: stats
{
"STATUS": [
{
"STATUS": "S",
"When": 1471333798,
"Code": 70,
"Msg": "CGMiner stats",
"Description": "cgminer 4.9.2"
}
],
"STATS": [
{
"STATS": 0,
"ID": "AV70",
"Elapsed": 342566,
"Calls": 0,
"Wait": 0.0,
"Max": 0.0,
"Min": 99999999.0,
"MM ID1": "Ver[7111610-810cba0] DNA[01315f1f02f6936a] Elapsed[342568] MW[3182071 3182076 3182040 3182040] LW[12728227] MH[556 1253 1327 1329] HW[4465] DH[2.033%] Temp[34] TMax[94] Fan[5010] FanR[64%] Vi[1211 1211 1205 1205] Vo[4475 4481 4486 4496] GHSmm[6786.14] WU[91843.17] Freq[736.34] PG[15] Led[0] MW0[14544 14253 14713 14666 13935 14189 14462 14163 14241 13503 14025 14333 14031 14616 14283 14571 15399 15040] MW1[14332 14814 14484 14347 14344 13890 13723 14267 14271 14470 13848 13876 14502 15113 14869 14704 14716 14766] MW2[15088 15442 15086 14934 15070 15176 13919 14504 14667 14167 14534 14563 14356 15005 14952 14750 15192 15403] MW3[14762 14544 14406 14594 14340 13787 14146 13907 14331 14999 14751 14793 14870 14855 14832 15514 15172 15036] TA[72] ECHU[0 0 0 0] ECMM[0] FM[3] CRC[0 0 0 0] PVT_T[17-77/0-93/80 17-79/0-94/88 0-78/7-92/83 17-78/0-92/86]",
"MM ID2": "Ver[7111610-810cba0] DNA[0135f5ef1339ee6d] Elapsed[342567] MW[3182076 3182076 3182053 3182058] LW[12728263] MH[533 1266 1221 1316] HW[4336] DH[2.481%] Temp[35] TMax[93] Fan[4920] FanR[60%] Vi[1206 1206 1210 1204] Vo[4439 4449 4475 4465] GHSmm[6715.12] WU[89244.79] Freq[728.64] PG[15] Led[0] MW0[13954 13045 13377 12940 12851 12827 13034 13216 13105 12887 13543 13146 13246 13041 13204 13496 13172 13718] MW1[14785 15117 14241 14791 14211 14202 14074 13445 13368 14005 13859 14388 13800 13936 14133 14727 14399 14708] MW2[14730 14904 14613 14520 14571 14569 14368 13580 13695 13781 14033 14292 14389 14279 14498 14342 14706 14919] MW3[15537 15352 15226 14838 14987 14929 14696 14785 14957 13874 14748 14936 14270 14452 13973 14660 14685 15393] TA[72] ECHU[0 0 0 0] ECMM[0] FM[3] CRC[0 0 0 0] PVT_T[0-78/8-89/80 0-79/0-92/87 0-77/6-90/87 17-81/0-93/81]",
"MM ID3": "Ver[7111610-810cba0] DNA[013dd53ac97e55b5] Elapsed[342567] MW[3182076 3182076 3182058 3182058] LW[12728268] MH[574 1281 1204 1122] HW[4181] DH[2.755%] Temp[35] TMax[92] Fan[4530] FanR[56%] Vi[1201 1198 1222 1212] Vo[4449 4439 4507 4543] GHSmm[6570.36] WU[87751.32] Freq[712.93] PG[15] Led[0] MW0[14750 13844 13914 14576 13955 13333 13087 12931 14001 14300 14191 14401 13974 14374 14247 14642 14762 14373] MW1[14300 14139 14082 13996 13532 13795 13311 13570 13568 13977 13152 13566 13841 13951 13943 14361 14405 14320] MW2[14703 14697 14281 14035 13994 14039 13778 14566 13577 13943 13781 13726 13630 13929 14173 14867 14736 14946] MW3[13920 13103 13413 12831 12987 13202 13378 13487 13413 13907 13651 13247 13228 13754 13636 13852 13948 14201] TA[72] ECHU[512 0 0 0] ECMM[0] FM[3] CRC[0 0 0 0] PVT_T[17-80/0-91/87 17-75/0-90/85 0-78/8-92/83 0-74/8-86/79]",
"MM Count": 3,
"Smart Speed": 1,
"Connecter": "AUC",
"AUC VER": "AUC-20151208",
"AUC I2C Speed": 400000,
"AUC I2C XDelay": 19200,
"AUC Sensor": 12935,
"AUC Temperature": 36.58,
"Connection Overloaded": false,
"USB Pipe": "0",
"USB Delay": "r0 0.000000 w0 0.000000",
"USB tmo": "0 0"
},
{
"STATS": 1,
"ID": "POOL0",
"Elapsed": 342566,
"Calls": 0,
"Wait": 0.0,
"Max": 0.0,
"Min": 99999999.0,
"Pool Calls": 0,
"Pool Attempts": 0,
"Pool Wait": 0.0,
"Pool Max": 0.0,
"Pool Min": 99999999.0,
"Pool Av": 0.0,
"Work Had Roll Time": false,
"Work Can Roll": false,
"Work Had Expire": false,
"Work Roll Time": 0,
"Work Diff": 14804.0,
"Min Diff": 2052.0,
"Max Diff": 16595.0,
"Min Diff Count": 1784,
"Max Diff Count": 831,
"Times Sent": 99170,
"Bytes Sent": 13673887,
"Times Recv": 110863,
"Bytes Recv": 18374938,
"Net Bytes Sent": 13673887,
"Net Bytes Recv": 18374938
},
{
"STATS": 2,
"ID": "POOL1",
"Elapsed": 342566,
"Calls": 0,
"Wait": 0.0,
"Max": 0.0,
"Min": 99999999.0,
"Pool Calls": 0,
"Pool Attempts": 0,
"Pool Wait": 0.0,
"Pool Max": 0.0,
"Pool Min": 99999999.0,
"Pool Av": 0.0,
"Work Had Roll Time": false,
"Work Can Roll": false,
"Work Had Expire": false,
"Work Roll Time": 0,
"Work Diff": 0.0,
"Min Diff": 0.0,
"Max Diff": 0.0,
"Min Diff Count": 0,
"Max Diff Count": 0,
"Times Sent": 2,
"Bytes Sent": 152,
"Times Recv": 5,
"Bytes Recv": 1487,
"Net Bytes Sent": 152,
"Net Bytes Recv": 1487
},
{
"STATS": 3,
"ID": "POOL2",
"Elapsed": 342566,
"Calls": 0,
"Wait": 0.0,
"Max": 0.0,
"Min": 99999999.0,
"Pool Calls": 0,
"Pool Attempts": 0,
"Pool Wait": 0.0,
"Pool Max": 0.0,
"Pool Min": 99999999.0,
"Pool Av": 0.0,
"Work Had Roll Time": false,
"Work Can Roll": false,
"Work Had Expire": false,
"Work Roll Time": 0,
"Work Diff": 0.0,
"Min Diff": 0.0,
"Max Diff": 0.0,
"Min Diff Count": 0,
"Max Diff Count": 0,
"Times Sent": 2,
"Bytes Sent": 152,
"Times Recv": 5,
"Bytes Recv": 1487,
"Net Bytes Sent": 152,
"Net Bytes Recv": 1487
}
],
"id": 1
} |
|
|
|
soft is good so far but no any kind of support!
I totally disagree to this. Just read this thread and you can see that patrike tries to answer most questions. I agree 100% on the disagreeing ^^ The software works great and the dev actually responds to issues. @ bensam1231, Please lose the text walls... They make the eyes go out of focus before even half-way through and certainly obscure the questions or points buried in there somewhere... Yes the layout is quirky but nonetheless quite functional. Sorry if you have issues with how AM looks or functions but then again, if ya don't like it then move on to something else. |
|
|
|
What does this solve that a high quality PSU doesn't? It solves the problem of what happens from a short circuit. That short will draw all available power from a PSU. In a heartbeat the voltage will droop and more than likely the other hash boards will drop out giving the entire PSU capacity to feed the short ciruit. That set of cables/connectors feeding the offending hashboard burn. The only thing ANY PSU will do in that scenario is supply all it can until it overcurrents. That -- takes time during which things burn. As in flames until the PSU shuts down. Overall to me, this is really more of a concern when using a several-kw supply to feed 2 or more miners eg the 4kw monsters. 333A of sustained current available and probably a short duration margin capacity for 150% of that... |
|
|
|
I hope I got it right sir. Is this what I should do for my S9? Put a 35a fuse inline with the positive 3wires going to the Hashboard? How about the controller? Do I need to fuse it also?  Only thing I would change is the fuse size. For a s9 take it down to 20-25A per cable. Again, to save typing, ref https://bitcointalk.org/index.php?topic=1769399.msg18004006#msg18004006 |
|
|
|
I see what you mean, 3 phase 220 then, which would also require bigger wire i would assume? and how many of the antminer S9's could i plug into each receptacle ?
3-phase? No, residential power in North America is single-phase power changed to split-phase 220v (110V-Neut-110V) by the Utility transformers on the poles. It is still just 1 phase, just that the pole transformer has a center tap providing the Neutral (which is also tied to ground at the panel) and that is what feeds the house. ref https://en.wikipedia.org/wiki/Split-phase_electric_powerThree-phase is entirely different and will either be 3 hot lines with a Neutral (Wye) or 2 hot lines with the 3rd also tied to ground - no Neutral per-se (grounded Delta). |
|
|
|
|
Looks like Canaan may have dropped the 721's - they are no longer shown on their website. It now only shows the 741 and their controller.
|
|
|
|
I hope I got it right sir. Is this what I should do for my S9? Put a 35a fuse inline with the positive 3wires going to the Hashboard? How about the controller? Do I need to fuse it also? Give that person a cigar, they got it right! As for the controller, while there is nothing there using very high power and I don't ever recall reading about one catastrophically failing on an Antminer actually it *would* be a good idea to fuse it. Because the fans pull a fair bit of current - like up to about 2.5a each at full speed - I'd think an 8-10a fuse would be perfect. |
|
|
|
|
Now back OT, was wondering if the hub uses just a single 5v buck or multiple ones spread across the ports.
The 7-port hub from Plugable.com for my sticks has 3 regulators in it. 2 of them feed 2 ports each and the 3rd feeds 3 ports.
Makes sense to do that as it keeps the traces carrying 5v power short (and can be lighter copper) and eliminates the chance of the last port fed being starved.
|
|
|
|
More likely it's a GigaMPZ board. THASS it!. Now I dismember finding them first...  |
|
|
|
I didn't start making a common-slot breakout until 2015. The PCB has gone through three revisions: one with 4x 4-position terminals and 10x PCIe (Novak's first prototype) and two with 4x 4-postion terminals and 12x PCIe (Novak's production version and a revision). I built a DPS2000 breakout with 4x 6-position terminals and that's the only thing that didn't have either 2x (Dell 750W) or 4x (DPS800/HPCS) 4-position terminals. The only thing I was making in mid-2014 was the Dell 750W board. We tested DPS2000 prototypes in July but didn't start batching until later in the year.
All my breakout boards are also the same width as the PSUs they connect to. No way to match a 3.5" supply with 18 terminals in a row unless they're crappy and small, and I don't use crappy small terminals.
Check your breakout again. I bet it doesn't say GekkoScience.
I'll take a pic tomorrow. There is a big white "G" on the ones I have which I assume is the Gekko logo? I would have started using the HP 1200w CS supplies maybe late in the s3+ cycle and definitely for the s5's. Hmm, the mystery deepens. Just looked at my emails with Gekkoscience and all I see is stuff re: the DPS2000 supplies and cables for them. |
|
|
|
The HP common slot board can be made with 12x PCIe jacks or four 4-position screw terminas, two per rail, so only 8 pairs - probably just a typo. Um, not to dispute with the maker but I just looked at one of the CS breakouts I have from you -- 18 terminals on what looks to be a single strip giving 9 +/- pairs. Grant you I got mine around mid-2014 so I take it you changed them? |
|
|
|
Canaan finally got off their duffs a couple hours ago and sent me the BTC amount/address for 2x of the 741's that I placed an order for 3 days ago (they were out of 721's). That said, once they get this far they seem to move fast so I'll hopefully have the pair by the end of the week and will post how they do. So far aside from this issue with what Awesome Miner reports  my 3x 721's run flawlessly. Per the Avalon GUI the trio run a perfectly smooth 19-20THs and CKpool reports a steady 18.5-19.xx THs. I'm waiting to hear from Patrike as to what those 40+THs spike are all about. |
|
|
|
edit: Can you make a "common slot" adapter?
Sidehack already makes/sells a lil' HP CS breakout with terminal block connections for 8 +/- wire pairs. Just tie a PCIe cable or wires from a barrel cord to it and plug in... edit: corrected wire pair count |
|
|
|
|
Actually, I assume the hub will use a 12v supply to feed 5v regulators inside it. Keeps the current down for a (probable) barrel jack and lets us use whatever 12v supply we have. Correct? A terminal strip would be a nice alternative - easy to wire to.
|
|
|
|
Just *how* is an obvious failure of the hash board Vcore regulator -- probably the MOSFET's shorting -- the fault of a PSU? Just what in a PSU do you assume could have prevented this?
The Bitmain PSU can supply up to 133A continuously and probably at least 10-15% more before tripping out, the combined maximum current rating of 3x PCIe connectors is only 81 amps. Vcore regulator blew, all power took the easiest path - through the short circuit - and so yes, the connectors and wiring smoked. For what it's worth, I have 25 of the AWP1300 supplies and have had ZERO problems with them. Don't know about the newer APW1300+ but the older ones are very well made.
Now should all miners have a fuse between the power sockets and Vcore? IMHO yes they should but that is just speaking as an Engineer with over 50 years of dealing with power electronics...
Yes sir.. My power supply is still working with 12v.. that's odd. With your years experience in electronics. what can you suggest? Do I just put a 80a fuse between the power supply and miner? How do I put it? one fuse for the positive, and one fuse for the negative? I have 3 more S9's coming nxtweek. I can surely have a super advice from you sir. Thanks. Not going to retyped it all again so ref https://bitcointalk.org/index.php?topic=1769399.msg17968291#msg17968291Done that way each cable is protected plus easier to wire and fuses cost less. |
|
|
|
Your P/S is a brute. Short-Circuit protection should have kick-in and save the day. A fuse should be mandatory in any high power design. In this case, miner. Didn't see any so far, and many manufacturers out there.  My PSU is the Bitmain APW3+-12-1600W, It says it has every protection. but it failed. A waste of money. Not only crap miners, but crap PSU's. Way to go Bitmain Ah I just read this, it's the shit power supply Bitmain sells that fucked up, not the miners. I guess that's a relief that it's their psu's and not miners that are randomly catching fire lol. Makes sense I suppose. Definitely go with some good server power supplies in the future. Just *how* is an obvious failure of the hash board Vcore regulator -- probably the MOSFET's shorting -- the fault of a PSU? Just what in a PSU do you assume could have prevented this? The Bitmain PSU can supply up to 133A continuously and probably at least 10-15% more before tripping out, the combined maximum current rating of 3x PCIe connectors is only 81 amps. Vcore regulator blew, all power took the easiest path - through the short circuit - and so yes, the connectors and wiring smoked. For what it's worth, I have 25 of the AWP1300 supplies and have had ZERO problems with them. Don't know about the newer APW1300+ but the older ones are very well made. Now should all miners have a fuse between the power sockets and Vcore? IMHO yes they should but that is just speaking as an Engineer with over 50 years of dealing with power electronics... |
|
|
|
|
Show Posts
