65C is really hot, My S2 runs stable at 40 degrees with intake temperature of 32 degrees. I really think something is wrong with the temperature measurement or your fan settings. First thing to try is to reflash your mining software / firmware with the latest from bitmaintech.
Advanced (not recommended) tip: Set fan speed to 100% all the time to make sure the unit never gets to hot. You can do this by opening the unit and strip the blue or white cable from the fan cables leading to the mainboard. Only do this if you are familiar with electronics and computer equipment.
~ Luc
Topic: ANTMINER S2 Discussion and Support Thread - page 29. (Read 355730 times)
Also rcvd an S2 today after customs held it for 24 hrs.
fired up ok, shame about the shoddy lid with no 'tongues' to keep the side flaps down.
HOWEVER, the fans are acting up in as much as they power up, & up, & up then cut out
then 5 seconds later they power up, & up & up then cut out again
then 5 seconds later they power up, & up & up then cut out again
then 5 seconds later they power up, & up & up then cut out again
shes hashing around 1000 but the noise is giving me toothache right now its been at it the whole time its been running.
i tried removing the metal plate to see if it made any diff and it didnt.
shes also running 4-5C hotter than my other 3...
any ideas??
fired up ok, shame about the shoddy lid with no 'tongues' to keep the side flaps down.
HOWEVER, the fans are acting up in as much as they power up, & up, & up then cut out
then 5 seconds later they power up, & up & up then cut out again
then 5 seconds later they power up, & up & up then cut out again
then 5 seconds later they power up, & up & up then cut out again
shes hashing around 1000 but the noise is giving me toothache right now its been at it the whole time its been running.
i tried removing the metal plate to see if it made any diff and it didnt.
shes also running 4-5C hotter than my other 3...
any ideas??
Direct a moderate extra fan airflow toward the intake fans; it seems to help to reduce the internal fan's speed, hence noise.
Lower ambient temperature in the room helps as well...
Had a nice surprise with my S2 delivery today. They added a plate across the top of the blades to keep them all in place during shipping. It was plug n' play. No adjustments needed.
So they fixed it just in time for obsolescence.
So they fixed it just in time for obsolescence.
Yup they did that in the last batch
not in my last batch...
also missing are the useful tongues that kept the lid sides tucked in nice & snug... need to use the mounting 'ears' and 2 side screws now... kinda lame - especially as this is the rig thats running hot (66C) and wierding me out with the up n down fans for the past few hrs.
67C now, im getting close to snipping the blue wire/s and leaving them at 100%, but there are 4 of them so which ones would make more sense - the inlets, the outlets or all 4?
Had a nice surprise with my S2 delivery today. They added a plate across the top of the blades to keep them all in place during shipping. It was plug n' play. No adjustments needed.
So they fixed it just in time for obsolescence.
So they fixed it just in time for obsolescence.
Yup they did that in the last batch
shes hashing around 1000 but the noise is giving me toothache right now its been at it the whole time its been running.
A "toothache"
That is the strangest BTC mining side affect that I have ever hear of. 
Good Luck! 
Also rcvd an S2 today after customs held it for 24 hrs.
fired up ok, shame about the shoddy lid with no 'tongues' to keep the side flaps down.
HOWEVER, the fans are acting up in as much as they power up, & up, & up then cut out
then 5 seconds later they power up, & up & up then cut out again
then 5 seconds later they power up, & up & up then cut out again
then 5 seconds later they power up, & up & up then cut out again
shes hashing around 1000 but the noise is giving me toothache right now its been at it the whole time its been running.
i tried removing the metal plate to see if it made any diff and it didnt.
shes also running 4-5C hotter than my other 3...
any ideas??
fired up ok, shame about the shoddy lid with no 'tongues' to keep the side flaps down.
HOWEVER, the fans are acting up in as much as they power up, & up, & up then cut out
then 5 seconds later they power up, & up & up then cut out again
then 5 seconds later they power up, & up & up then cut out again
then 5 seconds later they power up, & up & up then cut out again
shes hashing around 1000 but the noise is giving me toothache right now its been at it the whole time its been running.
i tried removing the metal plate to see if it made any diff and it didnt.
shes also running 4-5C hotter than my other 3...
any ideas??
Direct a moderate extra fan airflow toward the intake fans; it seems to help to reduce the internal fan's speed, hence noise.
Lower ambient temperature in the room helps as well...
Received a new S2 today that was shipped on June 26.
There is a metallic plate-nice, all connectors were undisturbed despite the box taking a huge beating during shipping.
Software: from the get go, miner did not want to accept the IP change. I checked the software-still 4/10/14 (I don't know why they did not load the latest version).
Downloaded 6/19 version tar file, on update the "wheel" keeps turning without end. Waited 5 min (just in case-because it says wait a minute...).
After restart, this miner now accepts the IP change. So far after ~4-5 hours mining S2 seems stable at ~1000Gh. We shall see longer term...
Edit: The boards look different: no more hanging POTS/resistors.
There is a metallic plate-nice, all connectors were undisturbed despite the box taking a huge beating during shipping.
Software: from the get go, miner did not want to accept the IP change. I checked the software-still 4/10/14 (I don't know why they did not load the latest version).
Downloaded 6/19 version tar file, on update the "wheel" keeps turning without end. Waited 5 min (just in case-because it says wait a minute...).
After restart, this miner now accepts the IP change. So far after ~4-5 hours mining S2 seems stable at ~1000Gh. We shall see longer term...
Edit: The boards look different: no more hanging POTS/resistors.
Bitmain needs to deliver a decent upgrade package for his loyal S2 customers - who will not see anything like an ROI - which the S1 and S3 will...
[edit]
which the S1 (did) and S3 (most likely) will...
[edit]
which the S1 (did) and S3 (most likely) will...
The s3 will ROI .55 btc
Had a nice surprise with my S2 delivery today. They added a plate across the top of the blades to keep them all in place during shipping. It was plug n' play. No adjustments needed.
So they fixed it just in time for obsolescence.
So they fixed it just in time for obsolescence.
Bitmain needs to deliver a decent upgrade package for his loyal S2 customers - who will not see anything like an ROI - which the S1 and S3 will...
[edit]
which the S1 (did) and S3 (most likely) will...
[edit]
which the S1 (did) and S3 (most likely) will...
AntMiner S3 for sales shipping starts from July 10th
Speed: 478 GH/s
Price: 0.75 BTC
Link : https://www.bitmaintech.com/productDetail.htm?pid=00020140630025130637RV8OhOwt06BC
http://img4.hostingpics.net/pics/538409003201406301025098334V0o3dRR0656.jpg
Speed: 478 GH/s
Price: 0.75 BTC
Link : https://www.bitmaintech.com/productDetail.htm?pid=00020140630025130637RV8OhOwt06BC
http://img4.hostingpics.net/pics/538409003201406301025098334V0o3dRR0656.jpg
another 10 days to deliver......
So, my S2 I got recently hasn't been running smoothly. After some testing and experimenting it now runs stable with 9 blades. With 10 blades I could get it to run about 12hrs at 1th before it started dropping hashrate. If I then restarted the miner process some blades would show up as bad or with x's and I would only be getting 700gh+. With 9 blades, it's running smoothly at 900gh/s for 24hrs+. The one card I removed has only a faulty temp sensor. Does anyone know where it's located on the blade? Or is it inside the chips?
I think the PSU is the problem but don't know 100% yet.
I think the PSU is the problem but don't know 100% yet.
Sometimes the PSU might be under spec, but sometimes the PSU might not be getting enough cooling. I put a 165 CFM 120mm fan blowing into the air intake for the PSU and this helped me a ton. I could only run with 8 blades before, now I'm back to 10.
This might apply to the "miner turned off and you need to wait for it to restart" situation more (that is 100% overheating), but give it a shot. It is better to not toss out a blade if you can avoid it.
Other solution :
Remove the bad board
Overclock the S2
Run the Overclocked S2 with only 9 boards
I will have the same hashing speed as 10 boards
Remove the bad board
Overclock the S2
Run the Overclocked S2 with only 9 boards
I will have the same hashing speed as 10 boards
What frequency are you running? I facepalmed myself just now for not thinking of this!
option 'freq_value' '0801' #212.5M
option 'chip_freq' '212.5'
option 'timeout' '40'
After having no setup issues and running great for the last couple of weeks, I woke up this morning to find my batch 1 AntMiner S2 not hashing, fans going full speed, panel dim and the red light solid. Recalling that others here have had the same issue, I went back and skimmed over the previous posts and found that the likely issue was probably a corrupt SD card. That was indeed the case, as I am now back up and running, and I figure the problem started when a brief power outage occurred here this morning. Thought I would briefly summarize what I did to recover, which may be of special interest to those folks using a Mac to write to their SD cards:
- ran to the store and bought a 4gb Sandisk microSD card. They didn't have any class 10 cards, only class 4, but it seems to work (ordered a couple class 10s from Amazon for backup).
- Downloaded onto my MacBook the latest firmware from the bitmaintech website, as well as the SD card image from https://dl.dropboxusercontent.com/u/16075357/bitmain.img.zip (thanks 1l1l11ll1l)
- put the new microSD card in the adapter, shoved it into my MacBook, read through the guide at http://elinux.org/RPi_Easy_SD_Card_Setup, and then ran these commands in Terminal:
cd Desktop (my bitmain.img was on the desktop)
diskutil list (to find the disk name of SD card, mine was disk2, so replace disk2 below with what yours is)
diskutil unmountDisk /dev/disk2
sudo dd bs=1m if=bitmain.img of=/dev/disk2 (this took 30 minutes to complete)
- once SD card was ready, I opened up the AntMiner, pulled out the BeagleBone card, swapped SD cards and reassembled
- powered up, and it started hashing again. Connected to the miner from the browser, uploaded the latest firmware, changed to point to my pool, and everything was golden.
Much thanks to all of previous posters that talked about this issue, as your help got me back up in hours as opposed to days.
- ran to the store and bought a 4gb Sandisk microSD card. They didn't have any class 10 cards, only class 4, but it seems to work (ordered a couple class 10s from Amazon for backup).
- Downloaded onto my MacBook the latest firmware from the bitmaintech website, as well as the SD card image from https://dl.dropboxusercontent.com/u/16075357/bitmain.img.zip (thanks 1l1l11ll1l)
- put the new microSD card in the adapter, shoved it into my MacBook, read through the guide at http://elinux.org/RPi_Easy_SD_Card_Setup, and then ran these commands in Terminal:
cd Desktop (my bitmain.img was on the desktop)
diskutil list (to find the disk name of SD card, mine was disk2, so replace disk2 below with what yours is)
diskutil unmountDisk /dev/disk2
sudo dd bs=1m if=bitmain.img of=/dev/disk2 (this took 30 minutes to complete)
- once SD card was ready, I opened up the AntMiner, pulled out the BeagleBone card, swapped SD cards and reassembled
- powered up, and it started hashing again. Connected to the miner from the browser, uploaded the latest firmware, changed to point to my pool, and everything was golden.
Much thanks to all of previous posters that talked about this issue, as your help got me back up in hours as opposed to days.
I tried this with no luck. I ended up swapping the S2's stripped down beaglebone Black with a Beaglebone Black Rev. C(off the shelf)
https://bitcointalksearch.org/topic/revive-a-dead-antminer-s2-with-beaglebone-black-rev-c-off-the-shelf-671625
Other solution :
Remove the bad board
Overclock the S2
Run the Overclocked S2 with only 9 boards
I will have the same hashing speed as 10 boards
Remove the bad board
Overclock the S2
Run the Overclocked S2 with only 9 boards
I will have the same hashing speed as 10 boards
What frequency are you running? I facepalmed myself just now for not thinking of this!
AntMiner S3 for sales shipping starts from July 10th
Speed: 478 GH/s
Price: 0.75 BTC
Link : https://www.bitmaintech.com/productDetail.htm?pid=00020140630025130637RV8OhOwt06BC
Speed: 478 GH/s
Price: 0.75 BTC
Link : https://www.bitmaintech.com/productDetail.htm?pid=00020140630025130637RV8OhOwt06BC
It has been running great for many days and now all of a sudden this!
How can it be fixed?
Thnks all
Take this board out and examine it visually. Could be an excess of grey thermal paste at the bottom-remove using Q-tip 'technology".
If not, exchange the position with another board while making sure it is pushed into the slot all the way.
Same problem as you.
My (stupid) solution, but solve the problem for me :
Don't use DHCP but static IP.
Remove the LAN wire.
Power on the antMiner S2. (so S2 will not hash).
Wait 2 min.
Plug the LAN wire.
The antMiner S2 will start hashing.
No 'xxxxooxx xxoooo...." will be reported on the web interface.
I don't understand why but some boards need time to start ...
Other solution :
Remove the bad board
Overclock the S2
Run the Overclocked S2 with only 9 boards
I will have the same hashing speed as 10 boards
Hello,
I have overclock one of my two S2 (212Mhz instead 196Mhz) and change PSU (new PSU = corsair 1200)
You can see the result below
Blue line = Overclocked S2
Green line = Normal S2
I have overclock one of my two S2 (212Mhz instead 196Mhz) and change PSU (new PSU = corsair 1200)
You can see the result below
Blue line = Overclocked S2
Green line = Normal S2
Kano ?
Also, still looking for some S2 coupons if anyone still has some valid ones. Looking for 4 of them, my Bitmain name is the same as my name here... MoreBloodWine
Ty.
Kano, works on the cgminer team. He made the S1 update and is working on an update for the S2 also. Looks like he has a working version for some, but it doesn't seem to work on Eligius.Also, still looking for some S2 coupons if anyone still has some valid ones. Looking for 4 of them, my Bitmain name is the same as my name here... MoreBloodWine
Ty.
Here's the CGMiner thread, it's in there somewhere, don't remember which page:
https://bitcointalk.org/index.php?topic=28402.15260
Edit: here's his github page for the S2: https://github.com/kanoi/cgminer-binaries/tree/master/AntS2
If not paste, why / how would swapping bays with another blade help ?
I've seen others report this xxx000 thing before.
I've seen others report this xxx000 thing before.
I don't know exactly why, but it does-I had exactly the same problem and this is what fixed it.
Boards are not exactly the same size, so, I guess, they fit better in different places on the control board.
Also, still looking for some S2 coupons if anyone still has some valid ones. Looking for 4 of them, my Bitmain name is the same as my name here... MoreBloodWine
Ty.
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