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1  Bitcoin / Mining speculation / Re: Can bitcoin difficulty decrease on: November 24, 2017, 12:36:53 PM
maybe when you opened the thread, in January, it was not possible to imagine,
but it is now possible and is happening!!!

check it!!!

https://bitcoinwisdom.com/bitcoin/difficulty

at the bottom there are historical data...

Now I'm seeing that information:

Quote
Bitcoin Difficulty:   1,364,422,081,125
Estimated Next Difficulty:   992,634,265,914 (-27.25%)
Adjust time:   After 47 Blocks, About 9.7 hours
Hashrate(?):   7,877,863,283 GH/s
Block Generation Time(?):   
1 block: 12.4 minutes
3 blocks: 37.1 minutes
6 blocks: 1.2 hours
Updated:   14:30 (3.9 minutes ago)

Does it mean that after ~10 hours my Antminer S9 14Th/s will starting to make 17,78TH/s calculations?

Does it mean that I will earning 27% more with the same hardware?
2  Bitcoin / Mining support / Re: Overclock AntMiner S9 14th/s on: November 19, 2017, 10:03:40 AM
Overclock S9 is possible. Note you will damage your chips if you get wrong and will kill miner!
Best to leave set at standard with overclocking issues can show more HW/Error /Reject +more issue can happen.

Stick to standard unless you are feeling brave.

Asicworld

I have previous experience with overclocking CPUs and GPUs. I think that I have all prereuisits for overclocking - reliable 2000W power supply, cold place (15 Celsius degree or less) where the minner is placed. I will monitor the temperature of the chips and fan speeds.

My main fear is Do I have a way to return the old frequency to the device in case it does not work?

For example when I overclock CPUs I can make hardware reset with jumpers of the motherboard bios setting. As result the device start wotking normally with default settings.

Can I do the same with AntMiner or if the configuration is wrong the whole miner will die without way to restore default configuration?

3  Bitcoin / Mining support / Overclock AntMiner S9 14th/s on: November 17, 2017, 11:32:34 PM
Hello,

I have AntMinters S9 14TH/s model.

It is working very well, but I think that miner can produce much more hash power than 14Th/s.

I know that old models have "Advanced settings" tab where owner can change the frequency of the chips, to change fan speed and etc.

Unfortunately my miner does not have such option. So I used the trick explained here

Now I see "Advanced Settings" and I can change the Frequency betwen 100 and 1000Mhz.

My current Frequency(avg) is 626.61MHz.

The question is what will happens if I increase the Frequency to 650 or 700Mhz?

I afraid that the miner can die.

In that worst case scenario can I restore the default frequency with hardware reset button ? or if the new frequency is not OK, I will lost the whole device.

Thank you in advance!
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