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Guys can you clean up the quotes on your posts please, there's no need to hold a 15 post history including pictures - it just makes the entire thread unreadable.
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The fact that it may will switch to another coin in the future does not matter IMO. It does matter now, right? You are wrong, bitcoin-xt MAY switch to another currency. Bitcoin-XT will NOT switch to another currency if it does not hit its target of 75% of miners. Bitcoin-XT has been around for years, it is a Bitcoin client just like any others, it has some extra features not in Bitcoin Core and many people ran it for specific purposes. If it doesn't hit 75% then it will wont switch to another currency and continue to be used by many as a normal Bitcoin client. May, will, might, those are all keywords. The important bit is that they want to else it wouldn't exist in the first place. |
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dmwardjr ot toptek or anyone else,
After getting the wrong fan ( 3,9 A ), I connect fan directly to PSU ( over MOLEX ). Fan is starting OK, but S5, doesn't start to hash and I get red light back on S5. It was turned off completly from power for a week. Is it burned ? See picture below. Everthing seem normal, except red light and no hashing.
Solutions ? Do I buy recommended fan from toptek ?
I wonder if there was any modification to the fan code in the last firmware update, if they're checking for a / minimum RPM. I don't think so though as others are running directly from molex. Do you have a rubbish 3-4 pin fan you could plug in and hold to see if it will start? If not, PM me the same status screenshot but with pool info and I'll check that. |
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I'm assuming that picture on the right is mine? If so, that's one of the very first S3s to be made, ever (barcode #00003). It may have different board components than even batch #1 and surely will do from batch #1 of S3+s. It did have variable voltage control though.
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[2 is fine, still only about 165W per PCI-E.
So each of the 9 hash boards draws about 330 watts apiece? So the remaining 500-sh watts is for the fans and the controller? Itll be about 90W for the fans, 20W for the controller and the rest is PSU inefficiency. I calculated with 90% PSU efficiency so at 93 it makes it 170W per PCI-E when using 2 a board. The product page specifies the controller board must be powered on after the hash boards. I will use a seperate smaller gold or platinum atx unit, or put a time delay relay inline with the second 2880. The relay wouldn't void warranty would it? It is still being powered on after the hash boards. I can't answer that, sorry. Worst case you're frying and paying for a controller, can't be that expensive. |
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[2 is fine, still only about 165W per PCI-E.
So each of the 9 hash boards draws about 330 watts apiece? So the remaining 500-sh watts is for the fans and the controller? Itll be about 90W for the fans, 20W for the controller and the rest is PSU inefficiency. I calculated with 90% PSU efficiency so at 93 it makes it 170W per PCI-E when using 2 a board. Do you think it's going to work at 90% efficiency with their own PSU power supply APW3-12-1600-B2 https://bitmaintech.com/productDetail.htm?pid=000201505040743496917U7kGsCm0694 (Note they claim 93.8% efficiency) Or is that thing just a POS under normal working conditions and we should stick to normal computer PSUs? Its pretty accurate, single voltage PSUs tend to be very efficient and the power measurements are taken from the wall. |
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What is the proper way to submit a support ticket to Bitmain about this device?
bitmain.zendesk.com |
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[2 is fine, still only about 165W per PCI-E.
So each of the 9 hash boards draws about 330 watts apiece? So the remaining 500-sh watts is for the fans and the controller? Itll be about 90W for the fans, 20W for the controller and the rest is PSU inefficiency. I calculated with 90% PSU efficiency so at 93 it makes it 170W per PCI-E when using 2 a board. |
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engaged with my situation in the wrong thread
Why would such a post be deleted?
Don't play dumb. |
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So to my question.  Steve as someone with an insight into cgminer. Are you aware of what happens below the text box, and if it should do something on an S3? Or are you just writing to a lower level interface with no knowledge of what is or is not changed in the hardware? Almost all of the older S3+ batches had voltage control, but then batches became mixed between having voltage control and not. In order to unify the firmware (or to reduce the work required), they dissabled voltage modification via the firmware. So there is still a box but it won't do anything on the up to date firmwares. |
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My point was actually rather a trivial one, that when playing with core voltages & frequencies I was actually spending / wasting a lot of time waiting for the cgminer GH/s(5s) to get close to the GH/s(Avg) before logging the value in the spreadsheet.....
There's probably a more technical way of working out a good sample time, but generally setting a much lower than normal difficulty will get you there much faster. Ie 256 rather than 1024. 5s is okay although it will fluctuate significantly. |
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You can use as many PSUs as you want as long as you don't have multiple PSUs powering the same individual board (of which there is 9).
Do all PCI ports need to be powered? Or will it run with 2 on each board? 2 is fine, still only about 165W per PCI-E. |
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I don't think you can use only 2x PSUs. According to bitmain's product info Do not connect more than one PSU to the same hashing board! You can use as many PSUs as you want as long as you don't have multiple PSUs powering the same individual board (of which there is 9). |
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So when I started work with an S5 (BM1384) I looked for something similar and it seemed to come to Clock Frequency x 3.3 = Hash in GH/s. So 355Mhz x 3.3 = 1150GH/s which is the spec of the S5, again this is borne out by the testing I have done over a range of frequencies & voltages. In practice i have found the longer I wait for the Hash to stabilise the closer it get to the calculated value. So I wonder if we are we are wasting our time, for a system that is functioning correctly, waiting for Hash rates to stabilise as opposed to just doing some maths? Answers on a postcard to….
Sort of, although the 3.3 isn't a function of the chip itself but of the number of chips. You can the graph of S4+'s frequency vs hashrate vs temperature vs power consumption vs efficiency graph and its also very linear. |
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Those address are from the same guy who runs multiplybitcoin.com
It amazes me just how lazy some scammers are that they won't even create a second wallet / address. One link and they get busted for all their stuff simultaneously. |
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His name is no secret at all and is public knowledge so it's not really as malicious as you're making out. Had he published his other dox then that would be a different story.
Well, apparently the forum doesn't delete doxes any more. |
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Hi all,
As you can see the below screenshot , there are 6 x 120mm cooling fans with 4000RPM above , it is really nosie,I am thinking the possible way to make it cooled by water cooling , any ideas ?
Oh my god, this is as loud as 10 S5 if its the same fan. I think water cooling would be challenging to say the least, i don't know if there's heatsinks that would fit and you would need to deassemble it and have the heatsinks fit just right in between the boards. There is so much heat, maybe some silent but higher cfm/pressure fan would be better. Same noise as an S4+ at a decent ambient or a HashCoins Ares so its to be expected. It should be possible to watercool although you'll still need some fans to move air over the boards (and backsides). |
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Care to share clock speed and voltages ?
432 chips = 7.2 times of antminer s5. With only 7.7THS that means it is underclock right ? I think there s many overclock rooms, maybe for 9THS with 4500W
Thanks..
There isn't too much headroom on the S5 and S4+/S5+ (also due to heat) because of the fixed voltage. |
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No need to include a picture, it was simply 2 white foam square holding the extremities, with no other kind of padding or packaging whatsoever.
Is that a bad thing? You can work that out by asking the following questions: 1) When was the last time you heard of an S5 damaged in transit? 2) When was the last time you heard of a Tube / Prisma damaged in transit? [A miner that used copious packaging]. 3) Do you like paying to ship unneeded packaging materials around the world? 4) Do you want all the baby penguins to die? |
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Took both your advice, got an additional router but changes the IP address of the S3 miner manually before connecting and somehow still managed to login using the default IP (may have been luck) password and IP have been changed and i've managed to connect to the miner through the router.
Set the network protocol to DHCP while you have access, its so much simpler. The S3 will then take whatever IP the router gives to it so it will always be able to connect / conencted to. I've had a look at two different YouTube tutorial for configuration and a little confused on the "miner configuration", at the moment im registered with slushes pool;
Pool 1 - stratum.bitcoin.cz:3333 / stratum+tcp://eu.stratum.bitcoin.cz:3333
Pool1 worker - dumbasstest / os1234.dumbasstest
Pool1 password - anything
this is the information i'm inputting (tried different combinations)but it i'm still getting no response within the "Miner Status". i've also tried to use my waller address as pool1 worker but same outcome, is this not the correct information?
You need to sign up to the pool and use your own logins. See section 4 for how to enter pool information and register links. |
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