Post
Topic
Board Mining support
Re: Hacking The KNC Firmware: Overclocking
by
temen
on 27/01/2014, 15:20:24 UTC
mekadeka, thank you! Thats my first ever donation received, gonna put it on the wall=)

I think the consumption is part of many different parameters. I would love to lower the volts. That 265 might just "fit" in between clocks etc. Like somekind of "best time to open transistor gate, capacitance pumped full just before" etc.

Setting 5D6 works for me also, just has to be restarted many many times before it "catches" that=). It has somehow lower poewr consumption and it settles for 450gh/s after a while. I tried with 5E6 and 5F6 but even initially showing fast hash-rate it always settles to 450gh with this.

Before i used to have that 340gh/s as a norm. Then installed 3.8.5 and once i noticed that when starting and immediately with screen -dr seeing what happens it started right away like 2 times faster, then got up to 4 times and after that initial sequence it settled for 370gh/s.

If i want to get better gh/s even with 305, I have to start many times, best result is when initially on the screen there is reading like 700+ gh/s, after that if shows 1,68 th/s and then fluctuates between 500-700 gh/s for moment. Then it settles to 459 (cgminer) which on the poolside shows 488 =) Not normally that much but now it seems to be that.

If the gh-speed doesnt start initially from high value, then miner settles down to lower value. This is strange but perhaps there is some "initial modification" done on cgminer that sets the rate for rest of the session.

Sometimes i have to restart like 10 times to get this "high catch" effect. Its pain to wait in between, because without delay you just get fault 96/97 on vrms. Which means restarting the miner from the page (I dont like to switch off power but had to do that some times)I always wait like at least 45 seconds if vrms have been running for a while to let them cool down.