is it possible to unplug 2 boards and start with only one board at a time?
that way you could try to find out what each board(PCB) can do?
Don't know if this could help somehow?
Its not advisable to plug powered connectors into yoiur boards , it can give them a spark that could pop something. text book start up is PSU off plug in boards and power up machine then plug in control board.. least i think
that's how the Bitmain site says to do it.. i just personally plug all the connectors in then power up the PSU
Yes that's correct, i work in IT, and that is pretty much standard way to power any IT equipment. Thinking about it, it is pretty much standard to use ANY electrical equipment, but more so in any IT gear as the circuit boards are hypersensitive to voltage spikes/surges.
I was thinking like this:
1. No power connected from wall
2. plug in power to system board and ONLY one PCB.
3. If needed to be able to start with only one PCB than also remove communicationcords for other PCBs.
4. Plug IN powercord in wall and start z9 mini
5. check log how system communicate with that PCB
6. check how much its possible to OC that perticular PCB
7. ssh in and use command 'poweroff' (without the ' ' )
8. let it cool off for couple minutes perhaps
9. remove powercord from wall
10. repeat 1-9 with each PCB
11. repeat 1-9 but with 2 PCBs and check logs
I remember reading about Innosilicon A9 zmaster that when SSH'ing in as root if wanted to restart than type 'systemctl restart cgminer' (without the ' ' )
I do not know if this will give us any more useful info but this was what I was thinking!
It also seems that PCB 1 (chain 1) is the board that get least cooling compared to PCB 2 and 3 if I look at screenshots from other miners and my own z9 mini.
If guarantee voided its also possible to remove power from wall and switch place between PCB 1 and/or 2 and/or 3 and if curious do step 1-9 or whatever.
I only have one Z9 mini and its from batch 1.
I don't have enough knowhow to research this.
when I was poking around I got the feeling that maybe it's not cgminer but sgminer or a hybrid thats running.
Probably wrong about it and don't remember what it was that gave me that idea. (sorry!)
Don't want people putting in work going down the wrong path.
You should all presume that it's cgminer until someone with knowhow can confirm to all of us that it is something else
At least step 1-9 could be useful for thoose who owns several z9 mini's and already voided guarantee.
Than it would at least be possible to put together z9 mini's which could be OC'd to max and some z9 mini's left that could not be OC'd at all but perhaps run stable at factory settings or OC'd a little bit and having them run stable.
Instead of having almost every z9 mini being held back by one PCB that don't agree with higher clockspeed's.
That should help some of you with earning more money!
Hope this will help!
By the way I'm using MiningPoolHub on port 17023 for mining multialgo on Equihash.
I tried with ping against MPH from within Z9 mini when logged in.
ping europe.equihash-hub.miningpoolhub.com
gave me ip for europe.equihash-hub.miningpoolhub.com = 172.104.189.59
No difference if I use this:
172.104.189.59:17023
or this
europe.equihash-hub.miningpoolhub.com:17023
as adress for Pool in settings.
Just telling you all my findings!
I'm also using MPH's auto-exchange and converting what I mine to Bitcoin about 75% of time and Litecoin 25%.
I'm also using Bitfi wallet because as far as I can tell they are using the blockchain as memory and that makes it very hard to hack. This will be my cold storage but it is online. I have not yet choosen wich wallet for my iphone.
Waiting for Hodlit to see if thats the solution for me.
Right now I Hoodl BTC and LTC.
A very slow process with my single z9 mini and my single 1080Ti.
(I'm using the heat pruduced by z9 mini for heating my indoor air.)
Donations:
Bitcoin (BTC): 1HY5ZvPvx3fx5iA5cQKjw9ZuArse2STuCb
Litecoin (LTC): LZPmxZdoe8ZNL8av5CkPPBEEBJVdoFQbS6
Zcash (ZEC): t1d35jvkzKcWybpCqojZmgDZkcFC7iBwe8w
Monero (XMR): 48gVGMbZsAD5xtbpEpBKTJiDz6uMrnkTxjMcJGGFtore7i7wckSqmvYKfPVGQGab6U9kK76nGa91fhL SDvPfK4bYKkJaXeW
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