ANTMINER S2 Discussion and Support Thread

[Volgon]

The two Ethernet lights on the outside of the S2 and the two on my router are always off, when it is powered on.

Do you mean the internal Ethernet cable that is attached to the main (middle) board?

8 of the 11 cards were not seated properly.  

However, after re-seating, there is still no display and no lights on my router from the Ethernet connection.

I've already done a second pass at re-seating, and the internal Ethernet and ribbon cable are connected fine...any other ideas?

Since the display isn't lit, does that suggest a power terminal isn't connected or that the main board is fried?  

At least the fans make an impressive sound.  

I got my S2 today.  

However, the display does not light up.  Although the fans do turn on and I can see red lights inside it.  

Also, the Ethernet is not detected by my router.

So the consensus is that I should open it up and see if anything needs to be reseated?  Will this void the warranty?

Thanks!
Volgon

Check that all cards and cables are seated properly. 

check lights on controller's ethernet port

[ZiG]

Wish I had one to help, but with guys like atadro buying 6 there weren't many to go around.  Being first has its drawbacks, good luck guys, I hope you get it figured out.

You can say that again.  Both of my 2 units are totally fubar'd.  Unit 1 had the Raspberry Pi board popped out of the bus, and several cards were out of their slots, but even after re-seating it (and checking all connections), I can't get any connection to the unit.  The LCD display lights up but there is nothing displayed, and the green light on the LCD never comes on.  The ethernet port seems connected to the switch (switch shows active connection), but 192.168.1.99 cannot be accessed at all via SSH or http or even ping.  Dead for all intents and purposes as far as I can tell.

Unit 2 was a great example of total lack of QC (or else the unit was put in a washing machine and run through the "shake it up and spin" cycle).  Check out the pics below.  I haven't even tried to repair, as the bus connections are so bad (and many are loose) that it is impossible to seat all the boards and even if I could seat them, they would be under great strain.  I can't believe they shipped something like this and I can't believe that shipping damage would be to blame for this one.

UNIT 1 picture:
https://www.dropbox.com/s/by36y8x5kf1kisv/IMG_20140403_195015.jpg

UNIT 2 pictures:
https://www.dropbox.com/s/cintq9xlzazjauy/IMG_20140403_200530.jpg
https://www.dropbox.com/s/qai8pvbt9g8674t/IMG_20140403_200536.jpg
https://www.dropbox.com/s/5s2c1bnes5w3u2c/IMG_20140403_200617.jpg
https://www.dropbox.com/s/tuk1u5gcr5co6ie/IMG_20140403_201159.jpg
https://www.dropbox.com/s/bheoedm33c0l98h/IMG_20140403_201227.jpg
https://www.dropbox.com/s/a0okif3v7horbqy/IMG_20140403_201650.jpg
https://www.dropbox.com/s/e1skmn5p9k7rpjz/IMG_20140403_201704.jpg

It could be shipping damage, except that the boxes arrived in perfect condition, not a scratch or ding to indicate rough handling.

I guess I will find out soon enough whether bitmaintech stands behind its products or not.  

I am NOT paying $3899 for that shit...Period...!

Sorry buddy...and good luck...

[ZiG]

I got my S2 today.  

However, the display does not light up.  Although the fans do turn on and I can see red lights inside it.  

Also, the Ethernet is not detected by my router.

So the consensus is that I should open it up and see if anything needs to be reseated?  Will this void the warranty?

Thanks!
Volgon

What warranty...?...are you kidding...

[phobus]

Its pretty bad that the cards are not held in by anything and the slots are very loose fitting  I was lucky, after getting my cards reseated everything booted up. Its been running for almost 6 hours now and getting around 1% rejected. Will see if it will run throughout the night.

Also.. those vinyl straps on the box are an invitation for the ups guy to one arm huck the thing.

[seriouscoin]

wow after checking the pics, i'm shocked at the poor design.....

They didnt learn from bitfury? the motherboard fiasco again?

Stupid engineering.

Not one fcking team learm from ASICminer.

[buckrogers]

so after i rebooted the S2 I get nothing on my display and no connectivity at all..any ideas?


it was working fine from the start.

please help meeeeeee!

[GenTarkin]

crazy how they can go from having such a wonderful product (S1) to a steaming pile of shit (S2)...
WTF BITMAIN!?

[kano]

...
Where are most of the people located who had their shipments come all banged up and damaged, just curious what part of the country or world you're in.

Some of the drivers don't care about whats in the box they are dropping at your doorstep, let alone what happens to it along the way.
...

But he said:

...
It could be shipping damage, except that the boxes arrived in perfect condition, not a scratch or ding to indicate rough handling.

I guess I will find out soon enough whether bitmaintech stands behind its products or not. 

[buckrogers]

how come after i rebooted i get nothing on screen but the red light?

[raskul]

this thread looks like a car crash.
I feel for you guys, hope you can get something back for your troubles. I was pondering making an order here, but think i'll pass... the only viable company now has to be those spoondly-thingymajigs. but more expensive than I have in the bank, but i'm going to save for that.

[imar2014]

Has bitmain said anything about all of these issues to anyone ?

[MrTeal]

Interesting, if I toss the card from this into a fully populated BBB, this is what I get out the debug port with the

Code:

U-Boot SPL 2013.04-dirty (Jan 26 2014 - 19:01:25)
musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Peripheral mode controller at 47401000 using PIO, IRQ 0
musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Host mode controller at 47401800 using PIO, IRQ 0
OMAP SD/MMC: 0
reading u-boot.img
reading u-boot.img


U-Boot 2013.04-dirty (Jan 26 2014 - 19:01:25)

I2C:   ready
DRAM:  512 MiB
WARNING: Caches not enabled
NAND:  No NAND device found!!!
0 MiB
MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1
*** Warning - readenv() failed, using default environment

musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Peripheral mode controller at 47401000 using PIO, IRQ 0
musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Host mode controller at 47401800 using PIO, IRQ 0
Net:   <ethaddr> not set. Validating first E-fuse MAC
cpsw, usb_ether
Hit any key to stop autoboot:  0
gpio: pin 53 (gpio 53) value is 1
mmc0 is current device
micro SD card found
mmc0 is current device
gpio: pin 54 (gpio 54) value is 1
SD/MMC found on device 0
reading uEnv.txt
551 bytes read in 4 ms (133.8 KiB/s)
Loaded environment from uEnv.txt
Importing environment from mmc ...
Running uenvcmd ...
reading am335x-boneblack-bitmainer.dtb
20497 bytes read in 9 ms (2.2 MiB/s)
reading initramfs.bin.SD
14915825 bytes read in 1981 ms (7.2 MiB/s)
reading uImage.bin
Invalid FAT entry
3909632 bytes read in 475 ms (7.8 MiB/s)
## Booting kernel from Legacy Image at 80200000 ...
   Image Name:   Linux-3.8.13
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    4394072 Bytes = 4.2 MiB
   Load Address: 80008000
   Entry Point:  80008000
   Verifying Checksum ... Bad Data CRC
ERROR: can't get kernel image!
gpio: pin 55 (gpio 55) value is 1
reading uImage.bin
Invalid FAT entry
3909632 bytes read in 474 ms (7.9 MiB/s)
gpio: pin 56 (gpio 56) value is 1
reading am335x-boneblack-bitmainer.dtb
20497 bytes read in 9 ms (2.2 MiB/s)
Booting from mmc ...
Wrong Image Format for bootm command
ERROR: can't get kernel image!
U-Boot#

Linux never seems to load on the BBB. I haven't tried this with the BBB included with the unit, but possibly a bad firmware image?

[cxboyminer]

For the loose boards, in my opinion, they can be dislocate by someone shaking it, not only someone chucking/hitting it.

Has bitmain said anything about all of these issues to anyone ?

They are online.

Although Bitmain has slow customer response, they do impress me with their S1. Before they say anything about the issues i will not judge them. I am sure they will address all the affected customers. they are a good company so far.

[imar2014]

So how many people have received their S2's and are happily mining and have not had any issues ? Im curious to see as im sure others are...

[freebit13]

Damn, such a bummer to see how some of the units are arriving... looks like UPS is training a juggling school at the same time as doing deliveries 

I wouldn't put all the damage down to UPS though, this unit has a lot more mass than the S1 and therefore more inertia when being transported so one would expect some padding for the boards inside the case. It's possible to do serious damage to the components inside with a little shaking of the box which wouldn't leave any traces on the outside of box itself (serious turbulence could do that). I do remember seeing some KNC units that had the same problem and needed to be opened and checked before they would run.

I just hope they sort these issues before shipping batch 2 out on Monday

[Zetler]

Even if you are lucky to have received a working S2, can you be confident that there is no fire hazard?
I'd be monitoring it for at least the first ten hours.
Later I'd consider turning it off when I'm not at home. If it'd be turned on at night, I'd definitively have a smoke detector in the same room as the S2 and made sure it's loud enough to wake me up.

[buckrogers]

does anyone have any idea why it wont start up again after a reboot?

[buckrogers]

can someone upload a working backup so i can reflash?

[jimrome]

can someone upload a working backup so i can reflash?

I am dumping the SD image right now, will compress/upload when completed.

[buckrogers]

thanks, and how do i get it on the system if i cant access it at alll....remove the sd card? and copy onto it?