That's for that info. So it's down to the headboards themselves and not just the controller. Very interesting. I wonder what gives the hash board it's set freq etc?
Largely the same thing that gives CPU's different frequencies (within a family) -- mfg process variations resulting in speed vs error rate limitations. All will run fine at slow speeds but the number of dies from a wafer that work at higher speeds drops off pretty quick. So they are binned into different speed grades and priced accordingly. 
Topic: S9 blade on S7 controller? (Read 1128 times)
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Each hash board has default frequency and hash rate. If the default frequency and hash rate of hash boards are the same. You can mix them.
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Each hash board has default frequency and hash rate. If the default frequency and hash rate of hash boards are the same. You can mix them.
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The reality is that you can mix together all S9 hashboards and even with R4 hashboards.
But do not be put on a higher frequency which is on the weakest hashboard. 550M
In this miner working only 2 hashblades. The third hasboard is not connected.
One from this working boards is 650M (VER3) with all heat sinks the second hashboard is with missed radiators 550M (VER6)
controller software is for 650M miner.
Which hashboard is 550M and which is 650M?
That's for that info. So it's down to the headboards themselves and not just the controller. Very interesting. I wonder what gives the hash board it's set freq etc?
I contacted bitmain about cross compatibility a few weeks ago and they said NO...
I thought about doing the same thing...and a few variations of it.
I thought about doing the same thing...and a few variations of it.
Quote
Dear customer,
The IO Board of S7 can only be used on S7 antminer rather than other miner.
Each hash board has default frequency and hash rate. If the default frequency and hash rate of hash boards are the same. You can mix them.
The default frequency of the hash board is not based on the firmware. It can not changed.
There is a sticker on the hash board, which indicate the frequency of the hash board. Please check it and download the relevant firmware on our website as below to upgrade.
https://enshop.bitmain.com/support.htm?pid=00720160511022802617GoPmQhNb06CF
The IO Board of S7 can only be used on S7 antminer rather than other miner.
Each hash board has default frequency and hash rate. If the default frequency and hash rate of hash boards are the same. You can mix them.
The default frequency of the hash board is not based on the firmware. It can not changed.
There is a sticker on the hash board, which indicate the frequency of the hash board. Please check it and download the relevant firmware on our website as below to upgrade.
https://enshop.bitmain.com/support.htm?pid=00720160511022802617GoPmQhNb06CF
Yet another curiousity question from me 
Now I'm not very computer savvy when it comes to in depth things but I'm not stupid and open to learning etc
Basically can you run and S9 blade on an S7 controller? If not why not?
Thanks.
Now I'm not very computer savvy when it comes to in depth things but I'm not stupid and open to learning etc
Basically can you run and S9 blade on an S7 controller? If not why not?
Thanks.
No.
But you can put to one S9 controller 4 hashblade.
Very long cable for this purpose you can take from S4. The only difference is 2 more PIN
2x 60cm and 2x 70cm
Yet another curiousity question from me
Now I'm not very computer savvy when it comes to in depth things but I'm not stupid and open to learning etc
Basically can you run and S9 blade on an S7 controller? If not why not?
Thanks.
Now I'm not very computer savvy when it comes to in depth things but I'm not stupid and open to learning etc
Basically can you run and S9 blade on an S7 controller? If not why not?
Thanks.
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