Topic: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH - page 116. (Read 527798 times)
January 01, 2016, 12:47:11 PM
Have anybody experience of zwilla.de firmwares for S7 they have very big promises?
January 01, 2016, 11:02:11 AM
firmware that is to be used for S7 batch 8? what it is on the site of bitmain?
i'm on the latest for b8 from bmt site.
had 2 powercuts & they came back online automatically, just needed to login n a soft reboot. all good
January 01, 2016, 10:49:49 AM
firmware that is to be used for S7 batch 8? what it is on the site of bitmain?
January 01, 2016, 10:24:36 AM
Just installed 2 x S7s (B8) to join my 5 x S7s and noticed that the "wooo-wooo-wooo" sound is not there anymore.
However, they are running hot 70-72c with 100% fan. Latest Dec15 FW applied at 700mhz.
I will keep them running at these speed and monitor them for few days.
They are hashing quite nicely at "kano.is" <--- this pool is AWESOME!!!
However, they are running hot 70-72c with 100% fan. Latest Dec15 FW applied at 700mhz.
I will keep them running at these speed and monitor them for few days.
They are hashing quite nicely at "kano.is" <--- this pool is AWESOME!!!
this is really simple advice lower the fans to 80% and drop the freq until temps are 65c
January 01, 2016, 09:18:17 AM
Just installed 2 x S7s (B8) to join my 5 x S7s and noticed that the "wooo-wooo-wooo" sound is not there anymore.
However, they are running hot 70-72c with 100% fan. Latest Dec15 FW applied at 700mhz.
I will keep them running at these speed and monitor them for few days.
They are hashing quite nicely at "kano.is" <--- this pool is AWESOME!!!
However, they are running hot 70-72c with 100% fan. Latest Dec15 FW applied at 700mhz.
I will keep them running at these speed and monitor them for few days.
They are hashing quite nicely at "kano.is" <--- this pool is AWESOME!!!
January 01, 2016, 07:41:14 AM
unfortunately if bitmain misbehaves the fault is ours, not that we rebel for fear that never sells more miner house
December 31, 2015, 10:01:53 PM
Can I see a picture of your Foam setup? Also the this screeching sound is not normal as the other S7s are not like this one. I see other people having same issues and the noise goes way beyond the garage door due to the high pitch vs 2 other S7 which can't be heard thru my entrance door which is a strong fire resistant door. I will see what support says. Not sure if it's due to New Year but it's been almost 2 days with no response, they were faster on the response when I was short $18 for my order due to fees just 2 days ago. What's everyone's experience on the turn around time for response? Is this normal?
This is brand new and within Warranty period, they should fix it. I don't think that's asking too much. If we keep giving in on trying to fix everything or come up with Mickey Mouse solutions, we will continue getting inferior products and services.
This is brand new and within Warranty period, they should fix it. I don't think that's asking too much. If we keep giving in on trying to fix everything or come up with Mickey Mouse solutions, we will continue getting inferior products and services.
Good Luck. You will not get a response over the whistling fan noise unless you are a high profile customer meaning you order a ton of miners. The little guys cannot get a bad fan replaced and they will tell you to buy one locally.
Yoshi did me a solid by helping out, but even he will tell you China is doing anything for a fan.
May as well put a piece of tape or one of the other suggestions.
I sincerely do wish you the best and I am with you as far as making as much noise as possible.
When I was done wrong I also documented everything and people here on the forum told me to forget it, they had already learned Bitmain isn't going to help. Look at all the people who are waiting on complete miners or hash boards, they could care less about a fan...unfortunately.
As long as they have the market cornered, they make the rules.
^unfortunately true and on-point.
these delta fans are worth at least $10/ea and are heavy to ship from china, so replacing one will likely cost them up to $15 plus time spend arranging it. Due to minimal manpower, they have bigger things to deal with (this isnt good service though)
These fans are naturally loud, but sometimes theres a defect in there that doesnt read PWM, has a chipped/off-balance fan, bad bearing, etc and as a result can be much higher pitched whine/screech than normal.
your best bet is aftermarket replacement. go find a fan that can meet your airflow needs. 20% fans is about 70-80cfm, 40% fans is 90-100cfm, 80% is likely over 120cfm. a replacement will cost you $15-30 and be a better quality/noiselevel without waiting 1-2 weeks from china
ps: Spondoolies-Tech replaced my bad SP20 fan (had a defect, likely a bad bearing, and was horrifically loud compared to even an Sp10). They were the most stand-up manufacturer for support, but bitmain doesn't give much after-market focus
December 31, 2015, 08:13:52 PM
Can I see a picture of your Foam setup? Also the this screeching sound is not normal as the other S7s are not like this one. I see other people having same issues and the noise goes way beyond the garage door due to the high pitch vs 2 other S7 which can't be heard thru my entrance door which is a strong fire resistant door. I will see what support says. Not sure if it's due to New Year but it's been almost 2 days with no response, they were faster on the response when I was short $18 for my order due to fees just 2 days ago. What's everyone's experience on the turn around time for response? Is this normal?
This is brand new and within Warranty period, they should fix it. I don't think that's asking too much. If we keep giving in on trying to fix everything or come up with Mickey Mouse solutions, we will continue getting inferior products and services.
This is brand new and within Warranty period, they should fix it. I don't think that's asking too much. If we keep giving in on trying to fix everything or come up with Mickey Mouse solutions, we will continue getting inferior products and services.
Good Luck. You will not get a response over the whistling fan noise unless you are a high profile customer meaning you order a ton of miners. The little guys cannot get a bad fan replaced and they will tell you to buy one locally.
Yoshi did me a solid by helping out, but even he will tell you China is doing anything for a fan.
May as well put a piece of tape or one of the other suggestions.
I sincerely do wish you the best and I am with you as far as making as much noise as possible.
When I was done wrong I also documented everything and people here on the forum told me to forget it, they had already learned Bitmain isn't going to help. Look at all the people who are waiting on complete miners or hash boards, they could care less about a fan...unfortunately.
As long as they have the market cornered, they make the rules.
December 31, 2015, 06:27:02 PM
Get these and put two on top (tape them together) so they overhang and also put two on the side of the wall if you have it facing sideways. It helps.
December 31, 2015, 06:18:07 PM
Can I see a picture of your Foam setup? Also the this screeching sound is not normal as the other S7s are not like this one. I see other people having same issues and the noise goes way beyond the garage door due to the high pitch vs 2 other S7 which can't be heard thru my entrance door which is a strong fire resistant door. I will see what support says. Not sure if it's due to New Year but it's been almost 2 days with no response, they were faster on the response when I was short $18 for my order due to fees just 2 days ago. What's everyone's experience on the turn around time for response? Is this normal?
This is brand new and within Warranty period, they should fix it. I don't think that's asking too much. If we keep giving in on trying to fix everything or come up with Mickey Mouse solutions, we will continue getting inferior products and services.
This is brand new and within Warranty period, they should fix it. I don't think that's asking too much. If we keep giving in on trying to fix everything or come up with Mickey Mouse solutions, we will continue getting inferior products and services.
December 31, 2015, 06:03:41 PM
Hi All,
Anyone have this issue where their S7 makes a really loud screeching sound from the FANs but if you place a small cardboard piece to funnel air differently then it would sound like other S7 where it's just rushed Air sound. Please see image below. I'm opening a support ticket as the sound is incredibly loud and annoying and over power the noise created by 3 other system by itself.
https://i.imgur.com/ibjVgBY.jpg
Yes - this is a very effective trick at higher RPM. I've found an obstruction placed at the right spot in past the outlet fan works too, and should be better for cooling uniformity.Anyone have this issue where their S7 makes a really loud screeching sound from the FANs but if you place a small cardboard piece to funnel air differently then it would sound like other S7 where it's just rushed Air sound. Please see image below. I'm opening a support ticket as the sound is incredibly loud and annoying and over power the noise created by 3 other system by itself.
https://i.imgur.com/ibjVgBY.jpg
I believe that this is due to the outlet fan running too unburdened/too low pressure delta in the bitmain design. I think the inlet fan should probably be run at lower RPM than the outlet; the cardboard trick changes things just enough to bring both fans back into a loaded condition.
How do I permanently fix this issue? The other S7 of the same batch is not behaving this way. Will fan replacement fix this issue?
Dunno
Let me know if you find out? Has anyone looked at the fan RPM implementation on the controller board -- is it amenable to tuning front vs. rear?I believe the accepted solution for that has been a piece of tape on the intake screen. I have done it myself on two units.
Shouldn't BitMain replace for our FANs to fix the issue? We shouldn't have to duct tape or alter our devices to fix a defect when it's within warranty. What is the usual turn around time for BitMain support? I have a ticket open with them for 2days and haven't heard back.
The sound is natural to an with such high rpm and airflow, dissipating 1200W+ in a short tube. The SP20 was equally loud, almost worst at full speeds, most people had to run it <900W if they wanted the fans to spin at a LESS-loud speed. same for gear like the S5, SP10/SP3x
With the software tweak to get fans <20%, noise is actually quite bearable. I have them machine fed 0C outside air, so can keep the volume down without much issue.
20% fan @ 4.7TH with 62-67C temperatures (board 3 is hottest?). noise is as good as the S3
17% fan @ 4.5TH. noise is totally acceptable to be in the main room
15% fan @ 4.3TH. quiet. similar to a game console or desktop computer that has loud(ish) fans
For that fan noise, sometimes just rotating the fan 90 degrees helps. I've also bought foam sheets (like for what kids play with) and put the foam sheet between the jet blaster and mining rig. All my miners are also sitting on foam sheets which cuts down on small vibrations. Foam sheets are like duct tape now. And you can usually get them at the dollar store, so they are cheap.
Happy New Year!
December 31, 2015, 01:01:02 PM
Hi All,
Anyone have this issue where their S7 makes a really loud screeching sound from the FANs but if you place a small cardboard piece to funnel air differently then it would sound like other S7 where it's just rushed Air sound. Please see image below. I'm opening a support ticket as the sound is incredibly loud and annoying and over power the noise created by 3 other system by itself.
https://i.imgur.com/ibjVgBY.jpg
Yes - this is a very effective trick at higher RPM. I've found an obstruction placed at the right spot in past the outlet fan works too, and should be better for cooling uniformity.Anyone have this issue where their S7 makes a really loud screeching sound from the FANs but if you place a small cardboard piece to funnel air differently then it would sound like other S7 where it's just rushed Air sound. Please see image below. I'm opening a support ticket as the sound is incredibly loud and annoying and over power the noise created by 3 other system by itself.
https://i.imgur.com/ibjVgBY.jpg
I believe that this is due to the outlet fan running too unburdened/too low pressure delta in the bitmain design. I think the inlet fan should probably be run at lower RPM than the outlet; the cardboard trick changes things just enough to bring both fans back into a loaded condition.
How do I permanently fix this issue? The other S7 of the same batch is not behaving this way. Will fan replacement fix this issue?
Dunno
Let me know if you find out? Has anyone looked at the fan RPM implementation on the controller board -- is it amenable to tuning front vs. rear?I believe the accepted solution for that has been a piece of tape on the intake screen. I have done it myself on two units.
Shouldn't BitMain replace for our FANs to fix the issue? We shouldn't have to duct tape or alter our devices to fix a defect when it's within warranty. What is the usual turn around time for BitMain support? I have a ticket open with them for 2days and haven't heard back.
The sound is natural to an with such high rpm and airflow, dissipating 1200W+ in a short tube. The SP20 was equally loud, almost worst at full speeds, most people had to run it <900W if they wanted the fans to spin at a LESS-loud speed. same for gear like the S5, SP10/SP3x
With the software tweak to get fans <20%, noise is actually quite bearable. I have them machine fed 0C outside air, so can keep the volume down without much issue.
20% fan @ 4.7TH with 62-67C temperatures (board 3 is hottest?). noise is as good as the S3
17% fan @ 4.5TH. noise is totally acceptable to be in the main room
15% fan @ 4.3TH. quiet. similar to a game console or desktop computer that has loud(ish) fans
December 31, 2015, 12:31:54 PM
Glad I didn't buy any more s7s. Too many problems and customer service doesn't care.
December 31, 2015, 12:08:52 PM
Yeah... Thread title needs to be updated. S7 is no longer 4.86TH/s or 0.25J/GH.
Should read:
ANTMINER S7 is available at bitmaintech.com with 4.73TH/s, 0.30J/GH
Since bitcointalk is not accessible from mainland China due to the GFW, could a mod update the title? I'm sure bitmain would in the pursuit of honesty, but they simply can't due to circumstances.
Should read:
ANTMINER S7 is available at bitmaintech.com with 4.73TH/s, 0.30J/GH
Since bitcointalk is not accessible from mainland China due to the GFW, could a mod update the title? I'm sure bitmain would in the pursuit of honesty, but they simply can't due to circumstances.
The last two I bought arrived with 1 dead board each. Maybe the title should read 3.1TH/s, 0.3J/GH?
Heh, sounds about right. My B8 had a board die within a week, so also running at ~3.1TH/s right now.
That's pretty bad. Whats the delay and protocol here? You send back the black to Bitmain at your costs, then receive a blade within what delay? And then do you get compensated?
Normally there is not compensation. You talk to them they say if ok to disassemble. You cant even really open it without permission anymore, so have to talk to support.
I would guess he sends back to bitmain, then send working after. And most likely no compensation but I could be wrong. My batch 8 is still working strong even in the cold. So far so good on mine as far as running.
I still have 2 x S7 batch 5 hashboards with Bitmain Support.
I opened a ticket and they told me to send the hashboards back.
I did so, and they received them 2.5 weeks ago according to UPS tracking. I've sent in 3 support emails inquiring about the status and they haven't responded.
So 3 weeks total since I spent $100 to ship them for repair/replacement and nothing.
Looks like I might have a batch 8 hashboard out now. It's at remote location so I'll have to power cycle PSU before knowing fully.
Pray the board will come back up after power-cycle. Don't seem to be getting any loving from Bitmain.
December 31, 2015, 11:35:20 AM
Hi All,
Anyone have this issue where their S7 makes a really loud screeching sound from the FANs but if you place a small cardboard piece to funnel air differently then it would sound like other S7 where it's just rushed Air sound. Please see image below. I'm opening a support ticket as the sound is incredibly loud and annoying and over power the noise created by 3 other system by itself.
https://i.imgur.com/ibjVgBY.jpg
Yes - this is a very effective trick at higher RPM. I've found an obstruction placed at the right spot in past the outlet fan works too, and should be better for cooling uniformity.Anyone have this issue where their S7 makes a really loud screeching sound from the FANs but if you place a small cardboard piece to funnel air differently then it would sound like other S7 where it's just rushed Air sound. Please see image below. I'm opening a support ticket as the sound is incredibly loud and annoying and over power the noise created by 3 other system by itself.
https://i.imgur.com/ibjVgBY.jpg
I believe that this is due to the outlet fan running too unburdened/too low pressure delta in the bitmain design. I think the inlet fan should probably be run at lower RPM than the outlet; the cardboard trick changes things just enough to bring both fans back into a loaded condition.
How do I permanently fix this issue? The other S7 of the same batch is not behaving this way. Will fan replacement fix this issue?
Dunno
Let me know if you find out? Has anyone looked at the fan RPM implementation on the controller board -- is it amenable to tuning front vs. rear?I believe the accepted solution for that has been a piece of tape on the intake screen. I have done it myself on two units.
Shouldn't BitMain replace for our FANs to fix the issue? We shouldn't have to duct tape or alter our devices to fix a defect when it's within warranty. What is the usual turn around time for BitMain support? I have a ticket open with them for 2days and haven't heard back.
December 31, 2015, 11:32:21 AM
Fast action !!
I have two 150USD S7 batch8 coupons for sale.
Valid only to 31.12.2015 19:11 (probably Chinese time), so it is only 1h 10min from now.
They were purchased from user Tupsu.
http://img24.cz/images/61209568027749958900.jpg
I have two 150USD S7 batch8 coupons for sale.
Valid only to 31.12.2015 19:11 (probably Chinese time), so it is only 1h 10min from now.
They were purchased from user Tupsu.
http://img24.cz/images/61209568027749958900.jpg
Tupsu? that sneaky little....
I sold him (just one) for pretty cheap, I figured batch 8 was expensive enough as it is, might as well give a miner a break. now he resells them. well then. lesson learned. next time I get a coupon for 150$ I will sell it for 149$.Holy cow, how did that guy get so many coupons? That's a ton of them!
December 31, 2015, 10:53:51 AM
any fan tweaks, upgrades, etc? besides insulation like Phil did
using fans @ 40 to 50% and i want to lower the noise even more
is the controller ok with a reading of ~1000rpm?
using fans @ 40 to 50% and i want to lower the noise even more
is the controller ok with a reading of ~1000rpm?
Is that 1000 RPM on one fan or both fans? I'm asking this because one of them could be out. Which means one of them could be fine while the defective one is spinning the other from it's pressure.
December 31, 2015, 10:05:16 AM
Hi All,
Anyone have this issue where their S7 makes a really loud screeching sound from the FANs but if you place a small cardboard piece to funnel air differently then it would sound like other S7 where it's just rushed Air sound. Please see image below. I'm opening a support ticket as the sound is incredibly loud and annoying and over power the noise created by 3 other system by itself.
https://i.imgur.com/ibjVgBY.jpg
Yes - this is a very effective trick at higher RPM. I've found an obstruction placed at the right spot in past the outlet fan works too, and should be better for cooling uniformity.Anyone have this issue where their S7 makes a really loud screeching sound from the FANs but if you place a small cardboard piece to funnel air differently then it would sound like other S7 where it's just rushed Air sound. Please see image below. I'm opening a support ticket as the sound is incredibly loud and annoying and over power the noise created by 3 other system by itself.
https://i.imgur.com/ibjVgBY.jpg
I believe that this is due to the outlet fan running too unburdened/too low pressure delta in the bitmain design. I think the inlet fan should probably be run at lower RPM than the outlet; the cardboard trick changes things just enough to bring both fans back into a loaded condition.
How do I permanently fix this issue? The other S7 of the same batch is not behaving this way. Will fan replacement fix this issue?
Dunno
Let me know if you find out? Has anyone looked at the fan RPM implementation on the controller board -- is it amenable to tuning front vs. rear?I believe the accepted solution for that has been a piece of tape on the intake screen. I have done it myself on two units.
December 31, 2015, 09:57:52 AM
Fast action !!
I have two 150USD S7 batch8 coupons for sale.
Valid only to 31.12.2015 19:11 (probably Chinese time), so it is only 1h 10min from now.
They were purchased from user Tupsu.
http://img24.cz/images/61209568027749958900.jpg
I have two 150USD S7 batch8 coupons for sale.
Valid only to 31.12.2015 19:11 (probably Chinese time), so it is only 1h 10min from now.
They were purchased from user Tupsu.
http://img24.cz/images/61209568027749958900.jpg
Tupsu? that sneaky little....
I sold him (just one) for pretty cheap, I figured batch 8 was expensive enough as it is, might as well give a miner a break. now he resells them. well then. lesson learned. next time I get a coupon for 150$ I will sell it for 149$. December 31, 2015, 06:38:41 AM
any fan tweaks, upgrades, etc? besides insulation like Phil did
using fans @ 40 to 50% and i want to lower the noise even more
is the controller ok with a reading of ~1000rpm?
using fans @ 40 to 50% and i want to lower the noise even more
is the controller ok with a reading of ~1000rpm?
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