EDIT:
1. This instruction is for the firmware 20180930
How to OC the Zig Z1Overclocking the miner will void the warranty
Overclocking the miner can damage your hardware (board/chips)
Try it at your own risk.---------------------------------------------------------------------------------
Is it possible to OC this miner?I've tried it and it is possible...
but it doesn't really work. At least for my miner.
It works with firmware 20180930
Let me explain...You can export the config file (miner.json) from the settings page. And in that file you can change the value of the frequency (MHz).
To edit the file, i use a tool called "Visual Studio Code" You don't need this tool cuz you can edit the file with the Windows Editor.
After you edited the file, you can upload it back to the miner over the Settings page -> miner reboots.
This is how the file looks like:{"auto_frequent":"0","frequency":"900","check_nonce_submit":"1","auto_restart_miner":"1","restart_lower_limit_hashrate_5m":"4","restart_hw_count_30s":"74","auto_stop_miner":"1",
"stop_lower_fanspeed_in":"2000","stop_lower_fanspeed_out":"2000","stop_high_temperature":"70","temperature_unit":"c","refresh_time":"60","system_timezone":"Europe\/Zurich",
"system_hostname":"dayun","system_protocol":"static","system_ip":"192.168.1.222","system_netmask":"255.255.255.0","system_gateway":"192.168.1.1","system_dns_server":"192.168.1.1",
"pools":[{"id":130,"url":"stratum+tcp:\/\/lyra2rev2.eu.nicehash.com:3347","username":"xxxxxxxxxx","password":"x"},{"id":131,"url":"stratum+tcp:\/\/lyra2rev2.usa.nicehash.com:3347","username":"xxxxxxxxxx","password":"x"},
{"id":132,"url":"stratum+tcp:\/\/lyra2rev2.jp.nicehash.com:3347","username":"xxxxxxxxxx","password":"x"}],"user":{"id":15,"username":"xxxxx","password":"xxxxxxxxxx"}All this settings can be changed over the settings page of the miner, except the first 2:
"auto_frequent":"0"
"frequency":"900"Let's start with "frequency":"900"Here is where you can change the frequency (MHz) of the chips.
If you change this value (higher then 900), 2 things can happend:
- The miner accepts the new value, boots and you see the new value on the main page.
- The miner doesn't accept the new value and it won't boot. This never happend to me.
But it can happend. A user here told me, that whenever he tries to change something in this file, his miner won't boot.
What value can be set here?I've started with
950, then
1000 and i also went up to
1100.
Yes, 1100MHz. Here a screenshot: https://imgur.com/OMV5w7PFrequency set at 950/1000/1100 - What you need to know- The miner does not need more power for a higher frequency (MHz). With 900 or 1100 my miner is always around ~
1220W ~1450W
- The temperatur of the miner will increase by a few degree: 2-4°C (35-39°F)
- No, you won't get a higher/better hashrate[/b] You get a better higher hashrate starting from firmware 20180930
The increase of the temperature shows that the miner is working with the higher frequency (MHz).
You will see some high spikes in the chart, but you will not get a higher hashrate.
The hashrate will go up and down so that in the end you will have a lower hashrate overall.
But there is still the "auto_frequent":"0" option
This is by far the best option i've found for this miner.
"auto_frequent":"0" = you "force" the miner to work all the time with the value set in "frequency"
"auto_frequent":"1" = you allow the miner to adjust the frequency (MHz)
By activating the "auto_frequent" (set value from 0 to 1) you wont see any changes on the main page of the miner.
Here's an example:
Let's say you set the frequency at 950 ("frequency":"950") and auto_frequent is also activated ("auto_frequent":"1")
If you check the main page of the miner, you will always see 950 at frequency. You will never see any other value.
But, the miner is doing something and it's a good thing.
Please check this pic: https://imgur.com/3w8h14s
On the left side of the pic, the hashrate goes up and down with the default settings: "frequency":"900" "auto_frequent":"0"
Then on the right side of the pic, after activating the "auto_frequent", the hashrate is much more stable. I have more or less a straight line in the chart.
Since the miner adjusts now the frequency, you lose some hashpower. That's why i set the frequency at 1000 Mhz.
This way i don't lose to much hash power and i'm always above 6 GH/s.
So overall my miner is much more stable and i have a constant hashrate...
---------------------------------------------------------------------------------
EDIT
So overall my miner is much more stable and i have a constant hashrate...
Let me rephrase that:
I have a constant hashrate with this settings, but the miner still has the same issues.
One board stops working (but all chips are green) and i have to restart the miner.