Topic: Hacking The KNC Firmware: Overclocking - page 33. (Read 144362 times)

I've been on 241 for about a week now...been oc'in for a few weeks...either my psu or one of modules vrm is going out...The input voltage is dropping slowly...day by day...when i started on 241 that module was at 11.7 input and is now down to 11.1-2 range thinking i might step down to 231

anyone else notice this? I don't have the pcie extenders on so its not them...i hope its just my psu n not the vrms...i thought it might have been the cable cause i shorted out a fan connection once and the hot wire burned the pcie wires...but i changed that out with a new cable and no change

will update if any change...

impressive.

Wattage at the wall? 

Yes 4VRM Oct Jupiter

was that 4VRM Oct boards?

I have been running it at 251 for a couple of weeks with no problems. Temperatures are under control with open case, frontal fans in 45º on the frontal asics, y a big fan in the top of the case, heatsinks and artic cooler grease on the vrms.
3.3 volts at spi and around 60 amp in all dies.

716 ghs with 10006 WU. At the pool 740ghs.

@joeventura this precisely what you need to do.

thanks CYPER

sorry but are you stupid?










...and much more in this thread...

At 251?

Any extra cooler fan? What was the increase at watts?

my around 2 weeks

Do you have extra fan at October Jupiter??

How many days you hashing at that speed?

October Jupiter 4 vrm. 251

716 Ghs.

Well, I and others have been running their machines with the same risks as everyone else and have tested and contributed to the best of their knowledge/capabilities.

Also, I don't think the value of a comprehensive, exact guide should be devalued at all. Compiling knowledge, findings, and techniques into a centralized, valuable, and exact resource is just as useful as any other contribution, if not more so. This isn't about the act of writing, it's about someone acting as an expert editor of a knowledgebase. That's pretty significant stuff.

https://bitcointalksearch.org/topic/m.4432410

Thanks I look forward to that!

Did you happen to find it?

I'm in a hurry now but If memory serves it's only a matter to change zzz.sh in such a way to issue different command dies:


$c is a convenient variable that could takes value from 0 to 3, one for each die of the slot.

As soon as I've time I'll share a modified version that let you tweak the OC die by die.  

I'm going to make a start on a page on http://en.bitcoin.it/ today. Will let you all know once I've made some progress.

Regarding this wiki-style page...how to realize ?

I'll contribute, but I'd prefer to have all donations flowing to those who risked their hw and shared their knowledge with us in order to motivate such people for the next time we might need them. Writing a guide is no work/value in comparison.

I think it was tolip_wen and temen, in case I forgot one please forgive me and stand up.




To have a custom script executed at boot time, you need to modify/rebuild the firmware (I'm going to do so for myself these days as soon as I'm done I'll post it in here how to do it)
Regarding your 3h question, a simple cron job or some kind of loop with sleeps would do the trick in general.

Hi

How it's possible to make script that copies my own cgminer.sh script to /etc/init.d/cgminer.sh on startup?

And how to make script that restarts the miner with like 3 hour intervals? As there has been some downtime with overclocking and unit just shutting down=)

now 500gh/s semi-stable 2 module november saturn, was on during the night. Started clocking each die individually. To make it stable i needed to get rid of those fault 4:s turning up after some time. I think they have timer on them and that causes some overtemp-protection to trigger in after some time.

Values for asic 4 are 361 and asic 0 varies in between 361 and 2C1.


Description=cgminer 3.9.0|SUMMARY

MHS av=503541.30
MHS 5s=503582.25

Work Utility=7034.48
Difficulty Accepted=245831.00000000
Difficulty Rejected=1248.00000000
Difficulty Stale=0.00000000
Best Share=376240
Device Hardware%=0.1790
Device Rejected%=0.5065
Pool Rejected%=0.5051
Pool Stale%=0.0000|

ASIC Board    Info
0    

Temperature sensor: 46.0 C
Die ID    Cores ON    Cores OFF    %
0   48   0    100
1   48   0    100
2   48   0    100
3   48   0    100
DC/DC ID    ON/OFF    Status    Input Voltage    Output Voltage    Output Current
0    OFF    OK    11.5 V    0.82 V    35.2 A (28.9 W)
1    OFF    OK    11.4 V    0.822 V    34.6 A (28.4 W)
2      OFF    OK    11.3 V    0.815 V    37.5 A (30.6 W)
3    OFF    OK    11.4 V    0.817 V    37.7 A (30.8 W)
4    OFF    OK    11.3 V    0.821 V    35.9 A (29.5 W)
5    OFF    OK    11.4 V    0.818 V    36.1 A (29.5 W)
6    OFF    OK    11.3 V    0.826 V    29.5 A (24.4 W)
7     OFF    OK    11.3 V    0.82 V    30.2 A (24.8 W)
4    

Temperature sensor: 47.5 C
Die ID    Cores ON    Cores OFF    %
0   48   0    100
1   48   0    100
2   48   0    100
3   48   0    100
DC/DC ID    ON/OFF    Status    Input Voltage    Output Voltage    Output Current
0    OFF    OK    11.5 V    0.82 V    38.2 A (31.3 W)
1    OFF    OK    11.4 V    0.821 V    37.8 A (31 W)
2    OFF    OK    11.5 V    0.822 V    37.4 A (30.7 W)
3    OFF    OK    11.5 V    0.817 V    37.6 A (30.7 W)
4    OFF    OK    11.5 V    0.821 V    37.5 A (30.8 W)
5    OFF    OK    11.4 V    0.816 V    37.8 A (30.8 W)
6    OFF    OK    11.5 V    0.816 V    36.6 A (29.9 W)
7    OFF    OK    11.4 V    0.817 V    36.6 A (29.9 W)

Total DC/DC power output: 471 W

vrm's for asic 0 die 3 make fault 4 risen above that 30.  Asic 0 is heating more than 4 in overall.

I second this, and I will personally donate a little to someone who gets this done. Some criteria:

It will need to be a top-down guide for lay users.
It will need to include step-by-step instructions.
It will need to include correct order of procedure so that updates and/or configuration won't wipe out anything.
It should include persistent bertmod, enablecores (if needed), wizkid's cgminer,etc.

I would be willing to edit it for clarity, at least for some reasonable amount of time going forward.

Any takers?