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Topic: ANTMINER S4 Discussion and Support Thread - page 60. (Read 301481 times)

legendary
Activity: 1610
Merit: 1003
"Yobit pump alert software" Link in my signature!
December 28, 2014, 11:19:09 AM
I contacted Yoshi a few days ago to see if there is an S4 beta firmware, as once a day I lose two of the asic blades and they look like ---------------------------------- . The only way to restore all 4 blades working again, is a complete shutdown and reboot. Its not heat as I have it outside (covered), and its 40F-50F . Yoshi has not returned my email. Probably on holiday. Is anyone aware of an S4 firmware beta? Can you email it to [email protected] . I am a professional full time computer repair tech for 20 years, is there anything I can do hardware wise to fix this? Is this a known issue? Will regreasing the blades help?

Thanks
donator
Activity: 792
Merit: 510
December 27, 2014, 02:16:30 PM
For S4, if the miner powers up, the back light of the small LCD comes on but screen shows blank, highly likely it is the MicroSD card either got loose inside, or data on the microSD card got corrupted.

You will find the MicroSD card inside the case, behind the LCD panel and next to the PSU.  There is a Black Colored Beagle Bone Black and there is a little MicroSD card slot on it.  Lightly push the card and it will pop right out and push it back in.

Then please try to power it back on and see if it boots up.  If not, you may have to use this software to reimage (Write) the factory default data of S4.

Image Software (Windows):
https://bitmaintech.com/files/download/SD-partition-tool.zip

S4 Factory Default Image:
https://bitmaintech.com/files/download/initramfs.bin.SD-20141016.tar.gz

Any issues, please PM or contact our live support at 844-248-6246 Option 2

Thank you!

s4 sorry typo

---

got it , problem about sd card inside.
newbie
Activity: 12
Merit: 0
December 27, 2014, 10:36:01 AM
s4 sorry typo

---

got it , problem about sd card inside.
sr. member
Activity: 381
Merit: 251
December 27, 2014, 10:30:17 AM
Is it S2 or S4?

what can i do ? if i power on and the lcd screen of s2 antminer not show. i can't to connect to 192.168.1.6 too
newbie
Activity: 12
Merit: 0
December 27, 2014, 10:29:26 AM
what can i do ? if i power on and the lcd screen of s4 antminer not show. i can't to connect to 192.168.1.6 too

(edit)
legendary
Activity: 1540
Merit: 1001
December 27, 2014, 08:26:24 AM
Hi there!

I have some S4 running at BTCGuild (2048 diff) and some at another pool (around 1700 diff, varying). The ones at Guild are all showing zero bestshare, the ones at the other pool are showing actual bestshare values.  Hash rate seems good, better actually at BTCGuild than the other pool.  Does anyone have an idea what could be the bestshare problem?

Thanks!

It's an Antminer bug.  All of them after the S1 don't show best share if the difficulty is a factor of 2, say 512, 1024, 2048, 4096, etc. 

M

Wow, nice to know.  I think all possible diff values we can set at BTCGuild are factors of 2.  I wonder if the bestshare value kept by the Antminer is in fact managed by cgminer.  I'm sure CK knows about it.  Anyway, thanks for the info M.  Btw, nice work with your MMinerMonitor. Smiley

Kexkey


I don't think it's a cgminer bug....

M
sr. member
Activity: 248
Merit: 250
Are we there yet?
December 27, 2014, 08:15:50 AM
@Wings1987,

PM Sent to you for RMA!

I remember seeing this posted but can't get it to come up in search.

What fans are used in the S4? I have one that went bad and want to order before taking it apart.

Also is anyone using a quieter replacement?

Thanks in advance.

Better to get a RMA as you will not be able to find the same exact fans. Even the wire length is different for the fans. Fans 1 & 2 uses shorter wires while 3 & 4 have longer wires.

Also, there is no quiet fan that you can find that pushes 238CFM (which is required if you are situated near or at the equator like me which is Singapore).

Well, just in case, the specs for the fan is here http://prntscr.com/56s4gz
legendary
Activity: 1666
Merit: 1185
dogiecoin.com
December 27, 2014, 07:26:21 AM
I remember seeing this posted but can't get it to come up in search.

What fans are used in the S4? I have one that went bad and want to order before taking it apart.

Also is anyone using a quieter replacement?

Thanks in advance.

I never found out as they're genericly marked. If you dropped a front fan you can replace it with one of those high performance high static pressure Corsair fans that are easily attainable now, as only the rear fans are important in this layout. Temps literally don't change (I did it on my S4).
donator
Activity: 792
Merit: 510
December 27, 2014, 07:25:31 AM
@Wings1987,

PM Sent to you for RMA!

I remember seeing this posted but can't get it to come up in search.

What fans are used in the S4? I have one that went bad and want to order before taking it apart.

Also is anyone using a quieter replacement?

Thanks in advance.
sr. member
Activity: 418
Merit: 250
December 27, 2014, 07:15:30 AM
I remember seeing this posted but can't get it to come up in search.

What fans are used in the S4? I have one that went bad and want to order before taking it apart.

Also is anyone using a quieter replacement?

Thanks in advance.
full member
Activity: 237
Merit: 100
Smile while thinking.
December 27, 2014, 12:41:00 AM
Hi there!

I have some S4 running at BTCGuild (2048 diff) and some at another pool (around 1700 diff, varying). The ones at Guild are all showing zero bestshare, the ones at the other pool are showing actual bestshare values.  Hash rate seems good, better actually at BTCGuild than the other pool.  Does anyone have an idea what could be the bestshare problem?

Thanks!

It's an Antminer bug.  All of them after the S1 don't show best share if the difficulty is a factor of 2, say 512, 1024, 2048, 4096, etc. 

M

Isn't best share just an indicator of how 'close' your random chance got to finding a block? Is there another use for it?

It's a fun stat to have.  We bet on which of our miners is going to get closest to the current target and making games with it.  Beers and shots are in play, it's serious fun.  ;-)

And it's an indicator on the normal performance of the miners.
full member
Activity: 237
Merit: 100
Smile while thinking.
December 27, 2014, 12:35:32 AM
Hi there!

I have some S4 running at BTCGuild (2048 diff) and some at another pool (around 1700 diff, varying). The ones at Guild are all showing zero bestshare, the ones at the other pool are showing actual bestshare values.  Hash rate seems good, better actually at BTCGuild than the other pool.  Does anyone have an idea what could be the bestshare problem?

Thanks!

It's an Antminer bug.  All of them after the S1 don't show best share if the difficulty is a factor of 2, say 512, 1024, 2048, 4096, etc. 

M

Wow, nice to know.  I think all possible diff values we can set at BTCGuild are factors of 2.  I wonder if the bestshare value kept by the Antminer is in fact managed by cgminer.  I'm sure CK knows about it.  Anyway, thanks for the info M.  Btw, nice work with your MMinerMonitor. Smiley

Kexkey
legendary
Activity: 1540
Merit: 1001
December 26, 2014, 08:19:06 PM
Hi there!

I have some S4 running at BTCGuild (2048 diff) and some at another pool (around 1700 diff, varying). The ones at Guild are all showing zero bestshare, the ones at the other pool are showing actual bestshare values.  Hash rate seems good, better actually at BTCGuild than the other pool.  Does anyone have an idea what could be the bestshare problem?

Thanks!

It's an Antminer bug.  All of them after the S1 don't show best share if the difficulty is a factor of 2, say 512, 1024, 2048, 4096, etc. 

M

Isn't best share just an indicator of how 'close' your random chance got to finding a block? Is there another use for it?

It's nice to look at.  And with lower difficulty coins, it can be fun.

M
legendary
Activity: 1666
Merit: 1185
dogiecoin.com
December 26, 2014, 08:17:32 PM
Hi there!

I have some S4 running at BTCGuild (2048 diff) and some at another pool (around 1700 diff, varying). The ones at Guild are all showing zero bestshare, the ones at the other pool are showing actual bestshare values.  Hash rate seems good, better actually at BTCGuild than the other pool.  Does anyone have an idea what could be the bestshare problem?

Thanks!

It's an Antminer bug.  All of them after the S1 don't show best share if the difficulty is a factor of 2, say 512, 1024, 2048, 4096, etc. 

M

Isn't best share just an indicator of how 'close' your random chance got to finding a block? Is there another use for it?
legendary
Activity: 1540
Merit: 1001
December 26, 2014, 07:56:10 PM
Hi there!

I have some S4 running at BTCGuild (2048 diff) and some at another pool (around 1700 diff, varying). The ones at Guild are all showing zero bestshare, the ones at the other pool are showing actual bestshare values.  Hash rate seems good, better actually at BTCGuild than the other pool.  Does anyone have an idea what could be the bestshare problem?

Thanks!

It's an Antminer bug.  All of them after the S1 don't show best share if the difficulty is a factor of 2, say 512, 1024, 2048, 4096, etc. 

M
member
Activity: 76
Merit: 10
December 26, 2014, 09:50:37 AM
I have a S4 B1 and S4 B2. The S4 B1 is working great but the new B2 that i got in a couple weeks ago worked great for the first few days now I cant get it to hash more than a couple hours. The box would stop hashing but it would stay on, the fans on with a blank (but lit) LCD screen.

I think it is the power supply, i think the load is too much and one time i heard a click when it stopped hashing. I have another S4 but it uses the PCI-E power supply where this new S4 does not, so i can't test that.

It hashes fine with just 3 blades hashing, so that is what I have running now for the past few days so I can get some value out of this S4. I hope that BITMAIN helps me on this one. I have not had any major issues with my other S4 or my S3's. I really do like BITMAIN products...
Same things happen to me. blades temperature was only 53 degrees but I think PSU was getting hotter due to not getting ventilation. Once I re-position the miner, it start to work again. It seemed to happen when ambient temperature gets warm. Also, I set the frequency back to default 200 unless when I'm home to keep an eye out since it stop hashing after few hours while fan is still running at any other setting. It was annoying to see miner stop mining while at work and couldn't hard reboot until I got home. Anyhow, my new method has been working and hope it continued to work. Once weather starts warming up, I won't be able to run my miners due to heat. 
legendary
Activity: 1666
Merit: 1185
dogiecoin.com
December 26, 2014, 02:17:56 AM
I could not make my S4 boot itself to hashing without fan1 plugged.  I have to unplug one of my S1's fan and connect it to my S4's fan1 connector so that it boots correctly.  Maybe something's wrong with my S4 but it won't mine with a missing fan.

Now I'm looking for a compatible fan online, since Bitmain asked me to buy a new unit to get a new fan.


Have you tried swapping the fan cables over so fan1 is connected?

Interesting, I will try it.  Thanks for the suggestion!


Hey Dogie, just wanted to tell you that swapping the fans so that fan4 is not connected did the trick!  Thanks for suggesting!

Kexkey


No problem
legendary
Activity: 1666
Merit: 1185
dogiecoin.com
December 26, 2014, 02:17:10 AM
I have a S4 B1 and S4 B2. The S4 B1 is working great but the new B2 that i got in a couple weeks ago worked great for the first few days now I cant get it to hash more than a couple hours. The box would stop hashing but it would stay on, the fans on with a blank (but lit) LCD screen.

I re-seated the SD card and it worked for about 10 hours and started doing the same thing. It works if I turn the power off and turn it back on, but only hashes for a couple hours.

I got a new SD card and flashed the image from the original SD and that worked for a few hours and then it stopped hashing.

I emailed tech support and they sent me an image that I flashed to the new SD card and the same issue.

This is frustrating! I know it works, I just dont understand why it keeps stopping.

well I thought I had a fix to this but it started happening after 24 hours. I have been in touch with BITMAIN tech support and I am getting frustrated. I have asked for a RMA or a replacement motherboard and power supply to try. I think the hashing blades are OK as I have disconnected them one by one and they hash fine for 30 hours. However, when I connected all 4 of them together the unit stops hashing after a few hours but is still on and I can ping/manage the device via it's IP address. I dont see any "xxxxxxxxx" in the "miner status" screen.

I think it is the power supply, i think the load is too much and one time i heard a click when it stopped hashing. I have another S4 but it uses the PCI-E power supply where this new S4 does not, so i can't test that.

It hashes fine with just 3 blades hashing, so that is what I have running now for the past few days so I can get some value out of this S4. I hope that BITMAIN helps me on this one. I have not had any major issues with my other S4 or my S3's. I really do like BITMAIN products...

Thanks for quoting the original problem. It does sound like something power / heat related to power. I am worried that because you managed to significantly extend the interval between restarts that it may still be something to do with the positioning. Have you tried swapping the positioning with your other s4 entirely?

After that, contact BitmainWarranty to arrange a PSU swap. Make sure to tell them what variant of PSU you have.
full member
Activity: 237
Merit: 100
Smile while thinking.
December 25, 2014, 11:46:04 PM
I could not make my S4 boot itself to hashing without fan1 plugged.  I have to unplug one of my S1's fan and connect it to my S4's fan1 connector so that it boots correctly.  Maybe something's wrong with my S4 but it won't mine with a missing fan.

Now I'm looking for a compatible fan online, since Bitmain asked me to buy a new unit to get a new fan.


Have you tried swapping the fan cables over so fan1 is connected?

Interesting, I will try it.  Thanks for the suggestion!


Hey Dogie, just wanted to tell you that swapping the fans so that fan4 is not connected did the trick!  Thanks for suggesting!

Kexkey
donator
Activity: 792
Merit: 510
December 25, 2014, 11:45:07 PM
PM sent!!!

I have a S4 B1 and S4 B2. The S4 B1 is working great but the new B2 that i got in a couple weeks ago worked great for the first few days now I cant get it to hash more than a couple hours. The box would stop hashing but it would stay on, the fans on with a blank (but lit) LCD screen.

I re-seated the SD card and it worked for about 10 hours and started doing the same thing. It works if I turn the power off and turn it back on, but only hashes for a couple hours.

I got a new SD card and flashed the image from the original SD and that worked for a few hours and then it stopped hashing.

I emailed tech support and they sent me an image that I flashed to the new SD card and the same issue.

This is frustrating! I know it works, I just dont understand why it keeps stopping.

well I thought I had a fix to this but it started happening after 24 hours. I have been in touch with BITMAIN tech support and I am getting frustrated. I have asked for a RMA or a replacement motherboard and power supply to try. I think the hashing blades are OK as I have disconnected them one by one and they hash fine for 30 hours. However, when I connected all 4 of them together the unit stops hashing after a few hours but is still on and I can ping/manage the device via it's IP address. I dont see any "xxxxxxxxx" in the "miner status" screen.

I think it is the power supply, i think the load is too much and one time i heard a click when it stopped hashing. I have another S4 but it uses the PCI-E power supply where this new S4 does not, so i can't test that.

It hashes fine with just 3 blades hashing, so that is what I have running now for the past few days so I can get some value out of this S4. I hope that BITMAIN helps me on this one. I have not had any major issues with my other S4 or my S3's. I really do like BITMAIN products...
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