polymer_city
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Activity: 98
Merit: 10
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June 03, 2016, 09:58:10 AM |
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I have just received 3 S7's, and I think one has a faulty hash board?
If one particular blade is left plugged in, once it gets to full speed (60-90 seconds) it turns my PSU off.. (even with different PSU's)
All machines are using 2 x Artesyn 7001138-Y000 24R2730 PSU. 835w each.
I have checked with a multimeter and the faultly blade is getting exactly 12V on each plug, on each pin.
Is this a faultly board or is frequency too high?
Yes I have tried different PSU with this machine.
Any help?
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polymer_city
Member
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Activity: 98
Merit: 10
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June 03, 2016, 11:10:29 AM |
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I have just received 3 S7's, and I think one has a faulty hash board?
If one particular blade is left plugged in, once it gets to full speed (60-90 seconds) it turns my PSU off.. (even with different PSU's)
All machines are using 2 x Artesyn 7001138-Y000 24R2730 PSU. 835w each.
I have checked with a multimeter and the faultly blade is getting exactly 12V on each plug, on each pin.
Is this a faultly board or is frequency too high?
Yes I have tried different PSU with this machine.
Any help?
Setting freq to 650 seems to have done it. |
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HerbPean
Legendary
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Activity: 1638
Merit: 1005
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June 03, 2016, 02:59:58 PM |
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I have just received 3 S7's, and I think one has a faulty hash board?
If one particular blade is left plugged in, once it gets to full speed (60-90 seconds) it turns my PSU off.. (even with different PSU's)
All machines are using 2 x Artesyn 7001138-Y000 24R2730 PSU. 835w each.
I have checked with a multimeter and the faultly blade is getting exactly 12V on each plug, on each pin.
Is this a faultly board or is frequency too high?
Yes I have tried different PSU with this machine.
Any help?
Let's assume your feeding two blades with one PSU. (Never plug 2 PSU on the same blade) 1400 / 3 = 466W per blade ... that is over 900W on a 835w PSU. (Consider a bit less per blade since you have to feed the controller and his fan) That's your problem. |
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dmwardjr
Legendary
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Activity: 1302
Merit: 1318
Technical Analyst/Trader
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June 03, 2016, 10:59:13 PM |
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Has bitmaintech.com been non-accessible for anyone else? If so, for how long? Been working for me the few times I looked at it today. HTTP 503 ERROR for me. |
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dmwardjr
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Activity: 1302
Merit: 1318
Technical Analyst/Trader
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June 04, 2016, 01:05:54 AM |
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Yep, As I thought, New S 9 is out!
14.0 TH's with 1375 watts at the wall +/- 7%
$2,100 USD + shipping and possible VAT for some.
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Biodom
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Activity: 3752
Merit: 3864
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June 04, 2016, 01:28:29 AM
Last edit: June 04, 2016, 02:27:05 AM by Biodom |
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Yep, As I thought, New S 9 is out!
14.0 TH's with 1375 watts at the wall +/- 7%
$2,100 USD + shipping and possible VAT for some.
It is the same first batch as before, for the same price, slightly less btc, naturally. It was greyed out for a few days, now it is back. Probably the few ones where payment did not go through. aaaaaaand, it's gone (again) |
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aarons6
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Activity: 1736
Merit: 1006
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June 05, 2016, 05:19:59 PM |
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some reason when i lose internet, when it comes back online.. my s7 does not..  the green lights are flashing like its still mining, and the air is coming out HOT.. but nope.. unfortunately it happens pretty often. i wish you guys would test your stuff and fix it.. its been awhile. and now these are EOL.. still no fixes.. |
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Biodom
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Activity: 3752
Merit: 3864
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June 05, 2016, 05:33:41 PM |
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some reason when i lose internet, when it comes back online.. my s7 does not.. the green lights are flashing like its still mining, and the air is coming out HOT.. but nope.. unfortunately it happens pretty often. i wish you guys would test your stuff and fix it.. its been awhile. and now these are EOL.. still no fixes.. they are faking it  On a more serious note, can you see it in a browser? does it require soft or hard reboot? In any case, check which firmware it is on. Typically, i don't do firmware upgrades, but I had two just like this, which were on Oct firmware. Updating to December one fixed the problem. Those which were on September firmware did not have the problem, so I let them be. |
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aarons6
Legendary
Offline
Activity: 1736
Merit: 1006
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June 05, 2016, 05:52:41 PM |
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some reason when i lose internet, when it comes back online.. my s7 does not.. the green lights are flashing like its still mining, and the air is coming out HOT.. but nope.. unfortunately it happens pretty often. i wish you guys would test your stuff and fix it.. its been awhile. and now these are EOL.. still no fixes.. they are faking it On a more serious note, can you see it in a browser? does it require soft or hard reboot? In any case, check which firmware it is on. Typically, i don't do firmware upgrades, but I had two just like this, which were on Oct firmware. Updating to December one fixed the problem. Those which were on September firmware did not have the problem, so I let them be. it has dec 3rd firmware.. no you cant see it in browser.. you have to hard reboot it. |
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zodiacus
Newbie
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Activity: 19
Merit: 5
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June 06, 2016, 01:04:25 PM |
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joaogti36
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June 06, 2016, 01:33:08 PM |
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its working in a s7 b8 version  so far no problem!!!! |
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karmenali
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June 06, 2016, 06:21:04 PM |
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Where is come s9 i did not see on the site ? And how much is your power on the pool ?
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soyab0007
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June 06, 2016, 07:32:59 PM |
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does bitcoin mining still profitable?
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Real-Duke
Legendary
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Activity: 3374
Merit: 2147
Top Crypto Casino
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June 06, 2016, 07:48:05 PM |
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does bitcoin mining still profitable?
That question has everbody to calculate for him self. Electricity costs are really important... |
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AriesIV10
Legendary
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Activity: 1260
Merit: 1006
Mine for a Bit
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June 06, 2016, 08:07:08 PM |
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its working in a s7 b8 version so far no problem!!!! So, What is the upgrade/improvement over any previous version? |
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zodiacus
Newbie
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Activity: 19
Merit: 5
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June 11, 2016, 05:19:10 PM |
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Hello guys, i'm having trouble with a miner i got on my last order (still under bitmain warranty), the miner starts up and i get the blinking green light,but one of the hashboards seems to be having trouble starting up hashing, and the whole miner doesn't hash at all until that board starts up,
miner starts and shows 0 hashing in the miner status, and it gives 100% HW errors....it takes about 5-8 minutes and then the miner starts hashing at full speed, i tested each board separatelly and the problem seems to be related with 1 single board, if i disconnect it miner starts mining right away.
anybody familiar with this problem? is this board defective even if it starts hashing after 5-8 minutes? im still in bitmain warranty
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Mr. Kashif
Member
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Activity: 99
Merit: 10
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June 11, 2016, 08:40:04 PM |
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Hello guys, i'm having trouble with a miner i got on my last order (still under bitmain warranty), the miner starts up and i get the blinking green light,but one of the hashboards seems to be having trouble starting up hashing, and the whole miner doesn't hash at all until that board starts up,
miner starts and shows 0 hashing in the miner status, and it gives 100% HW errors....it takes about 5-8 minutes and then the miner starts hashing at full speed, i tested each board separatelly and the problem seems to be related with 1 single board, if i disconnect it miner starts mining right away.
anybody familiar with this problem? is this board defective even if it starts hashing after 5-8 minutes? im still in bitmain warranty
Yous can ask them a replacement board. Just hit them up on their mail. |
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Sierra8561
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June 11, 2016, 08:53:13 PM |
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its working in a s7 b8 version so far no problem!!!! So, What is the upgrade/improvement over any previous version? I tested it on a couple. Can't tell a difference. |
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Biodom
Legendary
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Activity: 3752
Merit: 3864
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June 12, 2016, 02:11:40 AM |
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its working in a s7 b8 version so far no problem!!!! So, What is the upgrade/improvement over any previous version? I tested it on a couple. Can't tell a difference. bitmain site shows wrong price in btc for S7. At $622/btc it is is NOT 0.755 btc, but 0.707 btc. |
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