those r some good lookin temps my dude! maybe they are TOO GOOD. i know bitmain support emailed me back saying my temps were too low and that might cause my miner to run slower because they said it needs a hotter temp when starting. they wanted me to raise the temps where i was running a bunch of machines which all of the other ones worked fine it was just that one that hashed slower. did the temps where your running the miner drop in the past week or so? idk how true the temp claim is to be honest because i wasnt about to raise the temps on the room and on every miner in there just to get an extra th/s or 2...not worth the risk imo.

maybe i missed it....has anyone tried the manual freq firmware on the new s9's that auto clocks itself??

it could just mean it had a streak of shares being submitted really fast to the pool. it happens sometimes. sames goes on the pool end...you will sometimes see large spikes pool side of speeds almost double what the actual miner speed is but it evens back out shortly after...nothing that comes close to lasting for hours.

do they ever post changelogs showing what was added or removed from the firmware?? its like they post daily updates but no one knows what exactly is included in that update.

ya they gave me coupons to use that give $100 off but they jacked the price up by over $200 so whats the point??

the socket connection error will show up until the miner starts hashing away. if you havent upgraded your firmware the auto tune feature can take the better part of an hour to complete so you might see that error for a long while....if its been more than an hour something is wrong.

that would be true if i paid for power and if i were using a typical home ac unit. the units i have in each room are industrial roof mounted chillers. they do bio research here so the labs have to be very cold so since they are running all of the time the building manager diverts some of the cold air into each of the rooms i use ontop of the dedicated ac unit for each of the rooms so i get double the cooling and also if one were to have issues the other is there to pick up the slack until the first is repaired. better safe than sorry i suppose.


its getting cold here at nights though so i started running some of the s7's i upgraded at lower clock speeds with fan filters (home mining it dusty. the ac units in the offices do all the air filtration so those miners dont need filters on them because they dont get dusty ever) an use them as space heaters for my bedroom and the basement and so on. they work quite well for keeping rooms warm and will offset my electricity bill for sure. i used to run a 1500w IR space heater in my bedroom which would run alot and wasted tons of power. now i run my s7 and use 700w and i make some btc on the side while doing it.

as for overclocking the s9's....if you have an older version of the s9 you can but like others said its risky and not really worth it. you may be able to squeeze a few extra gh/s out of the miner but is it really worth risking your miner for a few gigs?? i sure dont think so lol. with the new version of s9 it auto clocks itself so you cant set the speed of anything manually like you could before. one thing that is interesting is that by clocking itself to whatever speeds you can see which boards are the top performing ones and if your into this sorta thing you can take the good boards and combine them into 1 single miner that runs very well instead of 1 miner having 1-2 good boards and another miner having 1 good board and so on but it might be best to not consolidate them.

i had the strangest reply from bitmain support today. one of my new s9's has been running 1.5th/s slower than it should be since the day i got it which is out of spec by more than double the numbers posted by bitmain. anyway i was talking to a very nice person names "barbara" which im sure is a fake name like when you call comcast support and get someone in india or south america....but anyway she was working with me then randomly this person with the username "overseas" takes over my ticket and asks me to do everything that i already did and when i replied back telling him no i already did all of this he came back and said basically my miners are cooled too well. he said i need to raise the temps in the rooms i run my miners in because my miners are running too cold. the funny thing is all of my s9's are in one room while my s7's and titans are in another room in the building next to it. each room has its own dedicated ac unit pumpin nice cool 65/70 degree air into the room. the room with all s9's runs perfectly (same with the other room of course but this is about the s9 miner not the other miners) except for that 1 s9 that runs out of spec.

i usually back bitmain to a certain point unless im wronged because i cant go by anyone elses experiences except my own but who would have thought i would get a reply back telling me to run all of my miner hotter and harder in order to fix this one miner running outta spec? all of the other s9's run perfectly at the temps selected in the room so what makes this particular miner less willing to run at spec? it doesnt get anymore extra cooling that the other s9's dont already get. its plugged up to the same 230v apc 5000w pdu as 2 other s9's are but somehow these speeds are my fault and not bitmains fault....lol not likely. just thought i would throw this info out there because i found it amusing.

can you pm me a ling to download the firmware/s you listed? im specifically interested in the "Antminer-S9-201607131442-11.85T-550M-security.tar.gz" firmware but wouldnt mind having them all so i can upload them to my godaddy server so they dont go missing on me again.

im already working with their support and an engineer to get this sorted out. at the very least we need fan speed control....not to lower the speed because its already too damn low but to raise it on one os these "newly designed" s9's. one is missing 1.5th/s which im getting a refund for because its way outta listed spec and the other has a board temp os 101 degrees because the fan speed it only 2280/3600 rpm not to mention the firmware overclocks that board to the damn moon.

ya it looks like you didnt wait long enough. the miner would take an upwards of 40 minutes to finally start hashing because of all the freq checks it does.

keep us posted for sure because this new firmware sucks.

like the other guy said...the temps r probably high because of that auto fan stuff. if it doesnt ramp up the freq like it does with batch 17/18 then thats the only other reason really. idk y they change the fan profiles for the miner. u cant make these machines quiet. if they were worried about the sound they should have adopted the full size larger fan heatsink like they used before. tons of these shallow tiny heatsinks just blows. i would much rather lose some space where i run my miners and have larger heatsink vs this small compact miner that runs hot.

people abuse their miners alot though. im one of few that runs them properly (aka not in a barn or a shed in the dead of summer) so im surprised bitmain would release such a temp sensitive miner to the general public knowing how many run them. they could have released it but with a better cooling design.

the temps are probably higher because the new firmware automatically overclocks the miner to the highest freq for each board. i much rather have each board at the same freq. one of my miners has a freq of 477 while another board in the same miner has a freq of over 600...that board is also hotter than the other 2. this will probably cause more failed boards than the old firmware did. afterall bitmain said "overclocking voids your warranty" because it puts the miner under more stress that wears it out faster...now it overclocks itself which will cause premature failures....not a good look bitmain...

has anyone tried the old firmware versions on b17 and 18?? im not sure what makes this batch any different. my 12th miners had 12th stickers placed over top of the 11.83th stickers and both stickers had the same serial number so im wondering if they are just saying that so people dont downgrade their firmware.

ok so some more info after i got a reply from bitmain...


1. these miners have an auto freq checker that checks every freq when the miner turns on to run the board at the highest posible freq which causes huge fluctuations in board temps.

2. bitmain confirmed when i said before....they say it can take up to 40 minutes before the miner starts hashing. this is because every time the miner reboots it has to run through the freq checker again! (i honestly think this is to use lesser quality boards with higher quality boards. one board like mine will run harder and much hotter which isnt good for that board)

3. no fan control. instead it uses an auto fan control feature that fluctuates the fan speed based on the temps of the boards. this sounds great but like i said one of my miners has a board that runs almost 100 degrees at the chip which none of my other miners come close to that so the flans constantly speed up to 5krpm when the temps hit 100 degrees then drop back down to 2400 rpm when the temps go below what looks like 95 degrees at the chip. this happens over and over with no end and sounds like a kid pullin up at the light next to u revin his mommy and daddys dodge charger just a little slower. i told them i want fan controls back in the firmware.

4. take screen shots after the miner shows 40+ minutes of runtime before sending them to bitmain. i had no idea i had the wait the better part of an hour for the miner to finally start so i emailed them after waiting and seeing socket connection errors which was a false error...it was just that the miner was testing the frequencies.

5. you can see if your miner is testing the frequencies by waiting for the miner to fully boot up and putting you hand in the air coming out. when testing frequencies the temps of the air will go warm then cold then warm then cold....it does this for like 40 minutes so if you notice the temp changes wait 40 minutes at least before assuming your miner is dead! orrrr sell you so called "dead" miner to me at a significant discount . lol jk but this part is pretty important.


this new auto freq is dangerous. i run my s9's with 2 pcie cables per board. the cables are not warm to the touch at all when using 2 because they are 16awg wires and i dont overclock the miner at all. it is easy to figure out how many to use...you just take the wattage (i have a meter) and divide it by 3 ( yes the controllers power isnt separated from the wattage just in case) and each 16awg cable if well made can handle something like 300w each but i try not to push it past 200 and change so my wires dont run hot at all. esentially what this new firmware does is make the miner less efficient because some boards are being overclocked to higher freqs making the math above useless because each board wont use about the same amount of power....the usage will fluctuate alot between the 3 boards. this is retardedddddddd.

Idk if thats true. At least not in my case.  The 12th/s miners they seld me had 12th/s stickers put ontop of 11.83th/s stickers lol. The serial number for both stickers matched as well.

if anyone has an earlier version of the s9 firmware please shoot me a pm. the 2 i have act weird and take 20 minutes just to connect to the pool and only after connecting can i see the cgminer info which seems to be a new version. this batch is running an oct 1st version with cgminer 4.8.13 and bmminer 2.0 and my other s9's are running an older version but they work just fine. i cant download the older versions because they removed them for whatever reason but if someone has the jul 11th version please let me know.

they also did something to the fan speeds which is not allowing the miner to run cool and stable. they changed it to a constant auto fan speed it seems like because the temps of the chips stays at 100 degrees when normally my s9 chip temps are mid 80's. the fan also spins up then down then up then down non stop which cant be too good either. they removed the frequency tabs and i can no longer change the fan speed to a constant number. i never changed the speed on the s9's anyway but at the same time my other s9's dont try auto fan speeding it non stop like this new firmware does....i mean who removes all the updates from their site like that? even i have to say thats retarded. now i have to wait days to get an answer back from them about how to proceed.

if your miner doesnt connect and says "socket connection failed: connection refused" leave it running for a long time and it will usually connect to the pool but after it does you will notice the fan issue i see with this new version.

i should also add that it looks like the new firmware has an auto freq feature that causes huge differences in temps from one board to another. its like its set to get xx amount of hashing power and the firmware adjusts the freq of the boards to reach that speed but the problem with that is one board runs at 71 degrees on the chip (super low) but thats not because its being cooled well...its because the miner lowered the freq of that board down to 400 and change. the board right next to it has a chip temp of 97 degrees and the freq of that board is over 640. it wouldnt be so bad if the boards all performed at the same speeds about but bitmain is using boards that cant go over xx freq with boards that can ready pretty awesome numbers. its almost like its a way to unload under performing boards with other boards that do very well. this might be y it takes 20 minutes to connect to the damn pool because its testing the freq of every board over and over until it finds the one that throws out the least amount of errors then it locks that freq in unlike before where we set the freq manually and all the boards hashed at that freq no matter what the numbers were HW error wise.

i really want my old firmware.....i dont like these temps at all. the auto fan control has the fans running at 30% right now....i wouldnt ever run the fans on my miners that low especially with just high freqs on random boards...

dang still so many having issues with s9's....the 4 i ordered have had no issues. i thought one had 2 boards die and i freaked out all the way to the server room i run them in and found out the breaker got tripped on one of my 230v apc 5000w converters causing one of my power supplies to go off on 2 of my miners (1 psu each) so the hash rate dropped by 2/3 but after turning them off and resetting the internal breaker for that set of plugs everything fired up and works just fine. the key is keeping those temps down and running them in a non humid area or in a tiny room like i have seen others do. its getting cool outside though so running them in a shed or a garage wont be a good idea EVER but it wont be as bad as running them out in the garage or shed in the summertime like others have done. i just cant bring myself to abuse $5k worth of miners like that. when a new batch goes up i will be getting the rest of the miners needed to replace all of my s7's so some can come home and be my space heaters at lower freqs and the rest i will sell locally or online.

dang those temps are HIGH. u should get them lowered asap to avoid your miner failing....even if that means underclocking it.

i think it depends on the controller version. on the 1.8x version there is a beaglebone attached to the controller board but on 1.9x versions there is no beaglebone. are the ones your trying to flash 1.8x or 1.9x?

Losing 1 bee wont make or break ne thing.....its not like its the queen after all lol.

antminer s1, 2, and 4's dont use the same amount of power in the same size space. the miners you mentioned also run with a SOLID heatsink which has much more surface area than the individual heatsinks. also if 1 chip is hotter on a solid heatsink it helps spread those temps to the entire miner but with the individual ones it can only spread through the heatsink attached to the chip. no miner in the history of miners was made to run in the conditions many of you are running them in. I think ur a complete moron for thinkin u can run miners in a barn safely. next time when u argue a point make sure u do it on a 1 to 1 comparison which cant be done with any of the previous generation miners EXCEPT the s5+ and s7 model. even that is hard to do because the s9 is longer than the s5+ and s7 models which means there is more to cool than on the s5+ and s7. and for someone that owned an s4 runnin in a barn to say its safe blows my mind....those fuckers caught fire while running in datacenter conditions....and u chose to run it in a fuckin barn in 120 degree weather??? not to mention where the hell in the US is it 120 degrees?!?!?! that right there shows stupidity and thats y u r bein called kiddo.

no i want people to get the most out of their miners and i want them to use them SAFELY! your suggestions put peoples miners and homes at risk which is imoral. seein how many people lost miners for doin exactly what your suggestin they do should tell u to keep ur face hole shut and stop passin out bad advice. bitmain by no means requires u to run them in a datacenter. i dont have datacenters and i havent had a single miner die so far. they expect miners to know what the hell they r doin and u sir do not. they shouldnt have t say dont run them in a 120 degree oven of a barn....that should already be common sense.

does a used car salesman tell you which peddle is gas and which is break everytime he sells you a car?? fuck no because he knows you should already know the basics of driving a car so he shouldnt have to tell you which is which. the same applies to miners. if the people listen to morons like u they can only expect to have their miners get run into the dirt and possibly worse. if losin ur house is worth the risk so be it listen to him but i told u all what would happen and it happened....me an multiple other people....i dont need ne one else to agree that im right....i already know im right i just want others to know the risks too and when people like u post implyin that im wrong well i just gotta correct u.

by the way did bitmain state what the max temps were for every one of their other miners?? i dont recall ever seein that but maybe i missed it. if they didnt y r u bitchin now? because ur miners r at risk when running in a barn in the dead of summer?? all it takes is a little common sense kiddo. it goes a long way. i can fix ignorance but i cant fix stupid.