Topic: ANTMINER S2 Discussion and Support Thread - page 2. (Read 355820 times)

If they had somewhere a way to change that in their last release, it's still in the same place.

To directly change it in the /config/cgminer.conf it's
 "bitmain-freq" : "40:196:5f06",

If you want to add another one to the web menu its:
 /www/pages/cgi-bin/minerAdvanced.cgi
add it in the select list there lines: 172 to 175
 
Edit: if you (or anyone) wants me to add more settings there in the base firmware, just let me know and I'll add them in so next release has the extra settings.
You need to tell me the settings you want i.e. as above "40:196:5f06"
The numbers are "timeout:frequency:regdata"

The settings run at half speed half power.
Not very useful, but it's not wasted energy either since it's half the power needed.

I added that one simply coz the last lot of changes by bitmain to the S2 was to hack that into cgminer.
In their last S2 version they send those settings twice to cgminer and ignore one of them.
It took me a bit of time messing around with the settings until I realised it didn't matter and they just didn't bother to remove them from --bitmain-options

While doing that, I was running that setting and it was hashing at half speed and half the power, so I added that one also.

flashed update. frequency settings have the following items:

How to understand the line in 1000 (halfspeed)

Thank you

Where is the folder to ssh in to and up the chip speed? Is not in the normal or old spot and your max is 200m

It's amazing. For s1, s3, s4, s5 - have similar firmware, but s2 not. It is not fair!

"Extranonce subscription" = altcoin, which conman and kano have indicated that cgminer will not support. 

btc4lyfe

Why? there's a reason for this?

No and never will be.
Not interested in adding another MITM stratum security risk.

whether there is support - Extranonce subscription in the firmware? Thank you.

I've put up a new master cgminer AntS2 firmware in my cgminer-binaries git
of current git cgminer 4.9.1+ modified from the last Bitmain firmware 29-Oct-2014 and including all the changes I did last year
https://github.com/kanoi/cgminer-binaries/tree/master/AntS2

I have a working build of 4.9 that will run on the beaglebone but the libraries I compiled with are newer / older than some of the ones on the most recent firmware. This in turn causes a ton of problems. I've been trying to get a build of angstrom1-4 built to run in qemu so I could match the libraries but I just dont understand how I can get my image to boot and the yocto1-4 distribution doesn't build on the latest ubuntu either. If I could boot into angstrom or a yocto build emulated in qemu using the beaglebone as hardware with a dev set that includes apt-get I'd go through the trouble of compiling a new cgminer but I'm pretty much stuck at that step and am running a incompatible image instead.

Steps I took:
Unknown-Image (I've compiled over 20 images at this point, I have no idea which one I'm running anymore)
compile linaro-qemu
run qemu-system-arm -M beaglebone
Compile cgminer (in qemu running an armv7 system using beaglebone as forced hardware set)
Elf edit to linker for angstrom build on s2
Elf edit to point to /lib and /usr/lib on s2
scp binary to s2
Library errors / Segment fault (I'm assuming this is because I didn't compile using the arm linker in the angstrom build and trying to force that linker causes a seg fault in my vm that I build on)


I can provide the non working binary if anyone is interested.

Also, all of this, because I honestly cant figure out how to properly setup a cross compilation tool chain 

The thirst of gain makes them want it anyway.

Couldn't find a way to do it. You basically can't mine on Nicehash because there are huge rejections 10-20%.

Is there a firmware update to support - Extranonce subscription?

Is there not a thread for that? S2 Upgrade Information

Ugg. Everywhere we look ANTIMINER this and that.

No wonder no one can find anything.

Guy,

am pulling PSU from my S2 to power my PC but i cant find 5 pin to HDD power line. Anyone know where I can find some?

I've been asking for months.  Seems they'd rather sell more of their last gen chips in the S4+ and invent PSUs with cheap wiring.

How about some news on the S2 Upgrade kits ? Has that plan been abandoned ?

It has been quite some time since news has been posted about that development. Still have an S2 kicking around, collecting dust, because an upgrade path was (still is ?) in-the-works.

They all come with 1050w Gold psu's and typical draw is 1060w total at wall.  These psu's are under rated so they do fine maintaing this draw.  10 blades + controller + fans + lcd.  Figure 90w+ per each of the 10 cards.

An S2 PSU is 1100W correct?

10-blades = 110W x6 blades = 660W

So yes and just run it on 5 blades if it does not.