Post
Topic
Board Mining support
Re: Hacking The KNC Firmware: Overclocking
by
CYPER
on 26/12/2013, 02:10:47 UTC


so you're impling that setting the clock to the default value lower the Amps, despite the fact that you're increasing the voltage per die?
I have 2 problems with the current state of overclocking:
Problem 1 applies to everyone:
Setting the voltage on the Advanced tab resets the clock.
Problem 2 applies to me only (and maybe other people):
Setting any overclock in cgminer.sh kills a number of dies. I think it happens because when you increase the frequency of the chip the current required increases, which creates a change in the voltage/current values and so this change makes the dies sleepy.

This is what I do: on boards with sleepy dies I increase voltage to the max and when I see they kick in and are alive I immediately lower it to safe values, but not too low so they don't fall asleep again.
Then I restart cgminer.sh where the overclock values are and this makes the dies to fall asleep again even though the voltage hasn't changed (just the current changes as higher frequency results in higher current).


nothing.

your overclock settings will stay in place, but your change to voltage won't get applied :/

edit:

give IRC a try and see if hno is hanging around..


So it won't work. To be honest I don't see any certain way to achieve the same result twice. I'm just fiddling with all the settings/values I can change hoping it will work.
2-3 days ago this same miner was happily hashing overclocked at around 600GH/s
Now it is even hard to make it hash at stock as some dies are very hard to be kept awake.