[Guide] Dogie's Comprehensive Bitmain AntMiner S2 Setup [HD]

[dogie]

Great Post -- THANK YOU!

This is my first AntMiner and so far so good.

Tweaked to 200 on the freq and after 2 days it is averaging ~25GH higher.

Tried 250 without any luck. Even tried with only 4 mining boards in case it was drawing too much power.

Hoping there is some good headroom to overclock ...

I'll be trying with a 1500W PSU but without chip voltage control there isn't much headroom.

[dogie]

good work man!
waiting for the overclocking test results

Coming soon.

[finlof]

got mine clocked at 212.5Mhz which yields about 1080gh/s consistently.  tried 225Mhz and while it shows 1200 gh/s the pool side shows under 1000 gh/s, so there must be a lot of hardware errors or stales or something.  without some kind of voltage mod or increase i dont know how much higher than 212.5 you can go.  i dont have the settings to try any other ranges between 212.5 and 225 though.

if you do the following the config will save even through reboots:
1. have 4/10/14 firmware
2. ssh into miner (user root, password admin)
3. cd /config
4. vi asic-freq.config
5. comment out current stats (place a # in front of lines that dont have it)
6. add these:
        option 'freq_value'    '0801'  #212.5M
        option 'chip_freq'     '212.5'
        option 'timeout'       '40'
7. save
8. you can either type reboot or you can go to the web interface and click save on the miner configuration page.

[dogie]

Whats your added power consumption? I've not found the additional power required for the ~65GH to be worthwhile.

[Crazy4Crypto]

Anybody have any luck figuring out the voltage mod on the S2?

While it probably won't cost justify, if you have free or low cost power, it could be an option.

[finlof]

Whats your added power consumption? I've not found the additional power required for the ~65GH to be worthwhile.

not sure.  i have a 1500w power supply and didnt check.  i do know that 225 reported 1200 gh/s at the miner level but under 1000 gh/s at the pool.

[Crazy4Crypto]

Warning for anyone that tries the 212.5 Freq. Don't be a dumb a** like me.  Upgrade your power supply first!  You've been warned 

[18RATTT]

i have a problem with all of my antminer s2.

it keeps turning off after 15-30min hashing, then it need to be unplug for 5 min before it can be turn on again. anyone having the same problem?
perhaps firmware issue or other known issue ??

btw, how to control the fan?

[dogie]

i have a problem with all of my antminer s2.

it keeps turning off after 15-30min hashing, then it need to be unplug for 5 min before it can be turn on again. anyone having the same problem?
perhaps firmware issue or other known issue ??

btw, how to control the fan?

Fans are PWM controlled so you can't (and don't need to) for now. What are the temperatures or symptoms that forces you to unplug?

[Truman]

i have a problem with all of my antminer s2.

it keeps turning off after 15-30min hashing, then it need to be unplug for 5 min before it can be turn on again. anyone having the same problem?
perhaps firmware issue or other known issue ??

btw, how to control the fan?

I have the same problem with the half of my ten S2 miners.
I dont think its a problem of the temperatur, but i will test it.

Please, can somebody help?

[dogie]

i have a problem with all of my antminer s2.

it keeps turning off after 15-30min hashing, then it need to be unplug for 5 min before it can be turn on again. anyone having the same problem?
perhaps firmware issue or other known issue ??

btw, how to control the fan?

I have the same problem with the half of my ten S2 miners.
I dont think its a problem of the temperatur, but i will test it.

Please, can somebody help?

If its time based its going to be temperature based somewhere - either the unit itself or the PSU.

[Trends]

got mine clocked at 212.5Mhz which yields about 1080gh/s consistently.  tried 225Mhz and while it shows 1200 gh/s the pool side shows under 1000 gh/s, so there must be a lot of hardware errors or stales or something.  without some kind of voltage mod or increase i dont know how much higher than 212.5 you can go.  i dont have the settings to try any other ranges between 212.5 and 225 though.

if you do the following the config will save even through reboots:
1. have 4/10/14 firmware
2. ssh into miner (user root, password admin)
3. cd /config
4. vi asic-freq.config
5. comment out current stats (place a # in front of lines that dont have it)
6. add these:
        option 'freq_value'    '0801'  #212.5M
        option 'chip_freq'     '212.5'
        option 'timeout'       '40'
7. save
8. you can either type reboot or you can go to the web interface and click save on the miner configuration page.

How did youcome up with that timeout number? I would have thought it would have been in the 60-65 area!
Just curious, I don't have an S2.

[Truman]

i have a problem with all of my antminer s2.

it keeps turning off after 15-30min hashing, then it need to be unplug for 5 min before it can be turn on again. anyone having the same problem?
perhaps firmware issue or other known issue ??

btw, how to control the fan?

I have the same problem with the half of my ten S2 miners.
I dont think its a problem of the temperatur, but i will test it.

Please, can somebody help?

If its time based its going to be temperature based somewhere - either the unit itself or the PSU.

I am testing it.

I am waiting now until a miner is going off again, then i will bring it home - and will put the miner direct in front of a window and will wait. (-;

If it is the psu, is there some way to fix this - i dont wanna change the psu...

[Truman]

Its the psu! Its getting damn hot!!!
And its definitive a construction faullt. The PSU fan is much to close to one of the asic board. And its getting only already heated air to cool itself.

So i turned the psu so that its fan shows to the right case. Then I stick something into the case so that its open a little bit on the right. So fresh air can come it.
That works fine at the moment.

[dogie]

I don't see any problems with the PSU placement or orientation in my case 0_O

[freebit13]

I've got no problems here either, but I've made sure to clean up all those extra cables from blocking the little fan under the lcd screen as it brings in plenty of fresh air for the psu...

[Truman]

I've got no problems here either, but I've made sure to clean up all those extra cables from blocking the little fan under the lcd screen as it brings in plenty of fresh air for the psu...

If your room is very warm already this little fan sucks!

[klondike_bar]

got mine clocked at 212.5Mhz which yields about 1080gh/s consistently.  tried 225Mhz and while it shows 1200 gh/s the pool side shows under 1000 gh/s, so there must be a lot of hardware errors or stales or something.  without some kind of voltage mod or increase i dont know how much higher than 212.5 you can go.  i dont have the settings to try any other ranges between 212.5 and 225 though.

if you do the following the config will save even through reboots:
1. have 4/10/14 firmware
2. ssh into miner (user root, password admin)
3. cd /config
4. vi asic-freq.config
5. comment out current stats (place a # in front of lines that dont have it)
6. add these:
        option 'freq_value'    '0801'  #212.5M
        option 'chip_freq'     '212.5'
        option 'timeout'       '40'
7. save
8. you can either type reboot or you can go to the web interface and click save on the miner configuration page.

ADD'T INFO:
- you can combine steps 3&4 as:  vi /config/asic-freq/config

I finally got around to doing the calculations myself for the antminer S2 - and so far it looks good (testbench was a U1, which on success menat the code could be applied to the S2 safely)

5002 = 206.25MHz
5082 = 212.50MHz   (different from the one above, but both should work fine)
5102 = 218.75MHz

all three meet the requirements stipulated by the above rules and pattern.

5082 is currently giving a hashrate of 1095GH and error rate of about 0.95% after 15minutes.    (212.5 is 8.5% higher than the stock speed)

[dogie]

...stuff

Please don't ask for tips in my thread, even I don't have a tip address.

[philipma1957]

Dogie please change your better psu /upgrade  for USA buyers

to this


http://www.amazon.com/EVGA-SuperNOVA-1300G2-ATX12V-120-G2-1300-XR/dp/B00COIZTZM/ref=sr_1_1?ie=UTF8&qid=1398550839&sr=8-1&keywords=evga+1300

or this

http://www.rakuten.com/prod/evga-supernova-1300-g2-1300w-power-supply-110-v-ac-220-v-ac-input/249973555.html

2 links for the same 1300 watt machine .

Not knocking the corsair you linked but this has more power 1300 watts

better warranty 10 years

and better price. 195 usd

in fact it is lower priced then the oem piece of junk enermax included.

I don't own an s-2 but I own s-1s and the evga will run 3 clocked to 200gh while the  enermax  struggles to run 2 at 200gh

I like this psu so much I ordered a second