Guys heads up on pencil mod for overvolting and thus aiding overclocking.
Use pencil mod on R2F, make it around 1.1 - 1.2K, voltage goes from 0.66V to 0.81V. The default value is ~1.3K. It may blow the 30AFuse if you go too high; so make sure you do it only if you have a soldering station handy  After Mod (I have only 3 H cards ) Bank 1
1: 30.781GH/s
2: 33.315GH/s
3: 30.022GH/s
4: 0GH/s how to? risks? pics? =) |
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Hi, all,
As stated before.
I'll wait until 16-th of September in the morning and if there is no Shiping info from Avalon I'll ask everybody in this group if they want a refund.
If majority 5000+ chips owners want a refund I'll ask John.K to send a refund request .
Same with batch 2 when it become 2 weeks late after promised delivery time.
why not start now, gather already information who wants refund ... so you are ready, the chips have no more value ... even less in 2 weeks ... |
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we need a pictured guide for dummies ... so we can break our boards trying ...
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Can you explain how to do this?
:-)
Maybee some pictures ...
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Call me a shill, but Bitmine.ch is for me the only professional and fair company in the current ASIC mess.
Seems you missed BitFury EU who was the first company who delivered in time with more performance then promissed. .... |
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I will start a GB ... prob. but need to do some calculations first ... also it seems Bitfury anonced new prices for chips this weekend ...
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FILE* fp_json=fopen("stat.json","w");
fprintf(fp_json,"{ \"stats\": \n {");
fprintf(fp_json,"\"speed\": %d, \"noncerate\": %.3f, \"noncerateperchip\":%.3f, \"hashrate\":%.3f, \"good\":%d, \"errors\":%d, \"spi-errors\":%d, \"miso-errors\":%d, \"jobs\":%d, \"record\":%.3f\n",
speed,nr,(nr/chips),hr,nrate,error,espi,miso,job-last,record);
fprintf(fp_json,",\"boards\": [");
int firstboard = 0;
for(b=0;b<MAXBOARDS;b++){
if(b_speed[b]){
if (firstboard > 0)
fprintf(fp_json,",");
fprintf(fp_json,"\n{ ");
fprintf(fp_json,"\"slot\": \"%c\", \"speed\": %d, \"noncerate\":%.3f, \"hashrate\": %.3f, \"good\": %d, \"errors\": %d, \"spi-errors\": %d, \"miso-errors\":%d",board[b],b_speed[b],
(double)0xFFFFFFFF/1000000000.0*(double)b_nrate[b]/(double)wait,
(double)0xFFFFFFFF/1000000000.0*(double)b_hrate[b]/(double)wait*(double)756/(double)1024,
b_nrate[b],b_error[b],b_espi[b],b_miso[b]);
fprintf(fp_json," }\n");
firstboard = 1;
}
}
fprintf(fp_json,"\n ]");
fprintf(fp_json,"\n } }");
fclose(fp_json);we just put out .... some more data in the stat.json which we then ... use for the web gui ... and done ... ... no magic ... stick needed here ... ... we need to decide what ... data we want to be displayed ... what do we need ... |
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What would be awesome is if someone whipped up a script that can collect larger samples of data by picking up each individual 5 min log and compiling them in to a longer one with averages. I'd personally prefer a one that shows info on every single chip.
Hi Isokivi, I'd be happy to give this a go over the weekend (we do a reasonable amount of parsing of text files in bash, so it should be straightforward). However, we don't have any bitfury hardware yet (October can't come round soon enough  ), so would need some sample log files and some info on the file locations etc. Let me know if you're interested - somebody else may have done it already of course and may be able to share more quickly. The file we want is /run/smh/.stat.log This is what they look like: http://pastebin.com/xN7t9WaHPlease note that: pastebin screws up the line lenght, all the info regarding a single chip is actually on one line. And secondly, this is a sample of that has two h-boards, the maximum is sixteen. Let me know if theres something else I can help with. [edit] btw since theres propably no nice way to time the data collection exactly when the new logs are generated (or perhaps there is, Im out of familiar waters here) I would suggest that you have the script pick up data every 330 seconds (5min 30 sec). Maybee we should just try to add our stuff into ... the chainminer ... https://github.com/bfsb/chainminerWe could do a other view ... in the webGui which shows each chip and his performace ... with his stats ... ... information is already been collected in the software for each chip ... |
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I have done 2 test runs ....
temperature was measured from the PCB.
without fans:
PCB @ 60° ... avg. Hashingrate around 41.5 GH
with fans:
PCB @ 41° ... avg. Hashingrate around 42.0 GH
So my conclusion is ... that they do work more or less the same cooled or uncooled ....
... maybee we should add some more information to the web gui ...
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I have done 2 test runs ....
temperature was measured from the PCB.
without fans:
PCB @ 60° ... avg. Hashingrate around 41.5 GH
with fans:
PCB @ 41° ... avg. Hashingrate around 42.0 GH
So my conclusion is ... that they do work more or less the same cooled or uncooled ....
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und nicht vergessen je nach dem wie verschraubt wird, Bohrer, Gewindeschneider, Senker, Bohrschablonen, usw. gleich mit bestellen
+1 |
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sounds interesting, but too much to invest on my own, maybe someone makes a quick GP for chips?
darkfriend you are interested too?
Foofighter
EDIT: But with that price, a full miner would be very expensive...
Yes ... .-) skype .. later ... when back from buisness. |
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Interesting offer ...
at the moment the €/BTC is playing a little bit against it, but who knows.
400 GH from EU BitFury delivred in end of october for 6500 €
challenged with your chips ... in mid oct. running OC > 2.5 gh ... with the new cscape SHash board ...
a close call ...
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there is no reason for keeping those chips except if you are an assembler and have buyed material ...
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I collected 68 5-minute samples of temperature, noncerate and errors yesterday and concluded that I should have enough data to reach a conclusion of some sort. But was too tired to analyse it right away. After a good night sleep I got to it. The highest measured temperature was 48.6c and the lowest measured temperature was 25.5c
To be honest after pondering over the results for a long time it would appear I've come up with a fairly decent rng.
The only concution I can reach that the boards would seem to appear to operate optimally when the air between them is 25-35c.
Hmm ... are you measuring the air ... I have my temp meter on the backside of the h-board ... they get around 60° with out fans .... gona do some testing too ... Did you attach it directly to the backside? Is it made of metal (is it conductive)? Should be no problem aslong as you don't short some of the tin holes on the back, right? i haven't had an issue ... right now ...  |
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I collected 68 5-minute samples of temperature, noncerate and errors yesterday and concluded that I should have enough data to reach a conclusion of some sort. But was too tired to analyse it right away. After a good night sleep I got to it. The highest measured temperature was 48.6c and the lowest measured temperature was 25.5c
To be honest after pondering over the results for a long time it would appear I've come up with a fairly decent rng.
The only concution I can reach that the boards would seem to appear to operate optimally when the air between them is 25-35c.
Hmm ... are you measuring the air ... I have my temp meter on the backside of the h-board ... they get around 60° with out fans .... gona do some testing too ... |
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JEKAMI Thread der BitFury StarterKit Besitzer ... ? Habe auch eins ... wird aber noch als Disko-Beleuchtung benutzt deshalb unverkäuflich .... 
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Sebastian received refund from Avalon and already sent it to customers, fast and clean! Lets think again is the waiting is right strategy at moment...
i vote for a refund .... if some one is interested in my chips ... im selling em for a good prices ... 32 ... PM ... |
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