anyone know what the exact problem was on the S3 that they fixed in S3+ ?
since i have one s3 that will start out fine, but will slowly drift downward in hashing speed, i was thinking that i could fix it myself if i knew what the difference was between s3 and s3+
Heat dissipation. Re-apply the heat paste (possibly use a better type), swap the paste with heatpads on the chips / front heatsink, tighten both heatsinks properly and update to latest firmware. Voilla, you have an S3+ !
EDIT: by the way, you can also use the voltage setting in the new firmware to help with efficiency / overclocking, see my sig!
already tried that with no effect (and yes i know how to apply the paste :-p )
besides, this particular S3 is not the one running the hottest, its actually one of the lowest in terms of temp, i think there is an engineering part in this that makes up for the difference between the S3s and S3+s...
What is stopping you from classifying it as an S3+ then? Can it not run at higher freqs without a load of HW errors? I have just pointed you to a good solution to efficiently running (even overclocking) with the voltage, but you dissed that with contempt. I only made that post yesterday, but have been toying with it for over a week, so I know what I am talking about there (wouldn't have posted if I was not sure).
The ONLY documented reason, in these hallowed pages no less, has been lack of adequate heat dissipation which leads to HW errors when you try to OC. Combine the two, i.e proper voltage setting at the running freq + good heat dissipation and you have, no doubt, an S3+ !
But hey, you asked the question and got an answer, it is (again!) the proverbial taking a horse to the water hole but cannot force the damn thing to drink!
let me put this differently then, since you seem to think im dissing your work (which im not!)
several antminer S3s work fine, and can be overclocked, but some will over time, gradually slow down.
i have tried the following on my antminer S3:
changed thermal paste
overclocked (no noticeable change in the few HWs generated)
underclocked
changed voltage from 0700 to 0785
this particular unit will still over time go slower and slower,
so, i am asking, what is the difference between the S3 and the S3+ since it took bitmaintech a whole month to correct whatever they discovered was wrong, and i am asking if anyone know what got changed...
the other S3 i have, work fine, and is overclocked, running with a slight higher voltage as well, and that unit is running hotter than the trouble unit..
