Topic: CUSTOM KNC TITAN FIRMWARE! based off KNC's v2.00 (Read 9076 times)

this firmware has a huge bug for me. when i reboot, the voltages goo crazy, and try to fry my miner. like i would have -0.7 and upon reboot it gives me +0.7...

any suggestions how to fix this?

These I have are on ave been running 24/7 so repaste with a good thermal paste. I use gelin extreme  again most Titans now 2 years old the paste likely shot.

If you need tips pm me. But imho the most likely way to get has back. If you did repaste

Then go whole hog and do the works. Maxumark bracket replace (10 bucks)and 3000 rpm fan and D.C./D.C. Individual heatsinks

Anyway details you can pm me. Anyway my advice asap

thanks. well, basically mine is running stock, untouched. it was much higher in the beginning. like 320, now it is at 290.

I've got 10 licenses from him...they work great on my machines not an issue........IF you are having problems (you probably know this) repaste...stick the 3000 rpm fan
get the maxumark bracket kit and dc/dc indivitual heatsinks and use gelin extreme paste on your repaste......again you probably know that

the combo of the above and the gen tarkin software and I have dropped between 10 and 15c on the dc/dc temps and gain like 35mh our of the 635 mh of units I checked
on this

If you don't believe this thread go to

https://bitcointalksearch.org/topic/swedish-asic-miner-company-kncminercom-170332

or

https://bitcointalksearch.org/topic/hacking-knc-titan-jupiter-neptune-miners-back-to-life-why-not-1283859


for a 3rd party view other then his thread here

anyway I always get a license when I get equipment...the knc original firmware stuff in a word ...SUCKS

everything except 1.15 is crap. at least on my 1st batch Titan.

can this firmware improve this, and how?

http://www.igreklik.com/slike/images/73318590547671862275_thumb.jpg

http://www.igreklik.com/slike/images/52025061919622961173_thumb.jpg

It came with 2.02 and IF I remember correctly the 1 SD I got (of the 2 miners I have at home) it upgraded directly just fine to 1.04 and then the 2.42  bfgminer also.

All the other miners we got of the 24 I don't think came with SD's of any kind thus we did the make an SD from scratch and they also all came up working no issues.

I have had to re-do the SD 2x on the 2 units for some reason...which is kinda odd...just showed up blank with the white lite blinking ...and a re-do worked well

so both units here have the new SD route now. I am waiting on a PSU to use the extra bridge board as a 'test bed' hopefully I can flash an SD then this week

But anyway I know the NEW SD route with Sandisk 8gb Class 10 SD's work ..in that we use them on the rest. Not sure anymore what came with the 1 Titan with

an SD...likely they used it to swap out and test the 24 (without thermal pads in some cases .burned dc/dc's sigh) but it came along for the ride with 2.02 on it

Is there anyway thru github you can contact the guy who made the 2.02 patch on the Titan firmware page? He is likely out of work now and maybe could give

you some info and help on this for the heck of it....in that he did invest time in KNC etc etc

I'll try to make an SD this week from scratch again to see....but waiting on a server psu build from a buddy




AT this point in time ALL of the 24 units we have were upgraded in the above manner. The SD that came with 2.02 is on the bridge board I am not using at this time.
With 2 units here I simply played merge the cubes with the controllers I have now on the other 2 titans I had here...thus the extra bridge to play "test the cubes with"
for future use and again waiting on the dual server psu to be done to play with it from Maxumark.

NOTE: we also did all them and they areupgraded to the 3.42 bfgminer patch as well. Again no issues, but the SD's on both faded a while back (blank and white lite blinking etc)
But that seems to be OK now after 2 or 3 weeks. That was the only odd thing.

they all came with 2.02 installed on sd's. I will try 2.0->2.02->1.0.4 later aswell

So, I was wondering ... is there any chance you can try loading an SD card w/ KNC2.00 -> KNC2.02 -> my firmware 1.0.4 and see if it works?
I dont have a Titan physically, so its very difficult to test the version combinations =/
Im confused as to what you said doesnt work... did KNC2.02 come loaded on the miner when you received it and u flashed my 1.0.4 ... then it did not work? Or did you mix my bfgminer5.4.2 installer in there as well?
Cuz, KNC2.02 -> GenTarkin 1.0.4 should not cause any problems ... even if it did , it should be clearable w/ the factory defaults options.
I would like to just figure out what all happened.
Or ... maybe its just bad luck and all variability / coincidence ... that would seem to be Searings experience =P

Well maybe they just tested for 15 min mine were tested for 1/2 hour ..which is probably the issue...look at the paper and you can make a guess

I on the other hand, I did find some toasty dc/dc's under new thermal pads...perhaps our 1st 24 were test units...did you also get the funky titan vinyal sticker over used
Neputne  cube shells...you can tell side by side w/o removing the lable with a regular Titan cube.in that if it was Titan cubes underneath part would show...
but I suppose with the data hall and running them bare on shelves....they have lots and lots of neppie cube covers......that is kinda a hoot.

Also what kinda damage did you see from temp workers (too short screws ..taco'd boards ) and also shipping damage..our stuff came to the USA so looked plenty rough.

Well anyway at 1900 bucks including the 150 for shipping we kinda figured it would be crappy ..due to the 'as is' clause so it will all work out..but still they did not even

try imho to give a damn ...at least on our first run 24 batch of stuff....sheesh

Yeah, I got 1 5 cube titan to do here yet..it is running cool and at 400mh more or less (knock wood) but I really got to look at this ....(its a trap i tell you). Then of
course, we have like 120 cubes to do of the 24 units (maxumark needs to do 18 for his and I need to do 6 titans of which I've done only 6 cubes here and  all but 4 cubes
left at the house here (2 Titans  at home and 4 Titans in the data hall)

Then again the other 4 titans hosting are at 62F in a data farm server place setup...so we have some time..but have to find the time to repaste...

Good to see you got them all repasted etc.....but yeah ...I got the gberty clone boards 1st batch one worked just fine....the 3 2nd batch ones all seem to be
broke....thus w/o redress there I too will be getting some Titan boards if I can find them ...we can beat each other up on eBay for such (fun fun)

Yeah time ...got no time as well....you can check out my full hash on www.litecoinpool.org
not sure if you can see it w/o a logon but it is a great pool imho

I don't even have a backup pool the last 2 years because it has never gone down that I can tell..lol pays 103% and no fee....and I like the tools etc
So things here are stable ..thou I too have 1 cube sitting around w/o a PSU thou...I have an extra controller from the 2 Titan's (I mixed and merged with my otherTitan stuff)
but waiting on a Maxumark server mod psu to play with this 1 extra cube.....but I'm still out now a 'test bed' controller for my problem cubes ...thus off to eBay
search I guess....

On a side note someone wants to be God in the Titan world ...get a Beagle Bone Black to work on a Titan controller ..you would be worshiped indeed!

Anyway good to see you are limping along w/o as many issues..but hey...363mh for mostly new stuff for 1900 bucks I'd have bid that anyway

oh they did test them believe me to each unit they put print from test, and yes the dc/dc from die 2 mostly run hotter and look in some cases worse than others. I already replaced thermal paste on all of my units that was first of my steps, then i made my own brackets and installed radiators on each dc/dc. Altho all my units seem to be assembled out of "new" parts, including fans, boards and all. I got only one cube that was running much hotter than others (over 80degrees) but repasting, sinks and noctua cooled it enough. If i wont be able to run 5 cubes per controller i will eventually give up and start looking for additional controllers to buy and run the rest of cubes. So far i got 6 cubes remaining to redo all of upgrades due to lack of time

So you did not run the 5.43 bfgminer upgrade?

Also for what it is worth I suddenly have a controller (not the new titan ones) only like 4 cubes.....it previously did not like me trying to use the LCD slot but took the LCD back
and now the port next to the LCD (port 2) it now also does not seem to like any added cube....but the 4 cubes are stable with tarky titan etc

out of the 24 new units we have we have at least 2 I think that will not take more then 4 cubes.....not sure ...but may be an issue that just kinda crops up over time

not sure if this helps anyone but I'd not be to distressed if this happens ...the controller doing this is exactly 2 years old now and has been run 24/7 since

on a side note you said all of your 50 cubes on the 2nd liguidation auction of 160 new Titan 400mh 5 cubes last month came without thermal pads...you seem to have
lucked out in they also (being knc and evil why pay the temp workers to test all 160 units in that their clause said as is) ...so w/o thermal pads and tested (in our
1st 24 we one on the only closed bid auction) most cubes have 1 dc/dc shot (lightfoot......are you reading this hint hint) ..anyway so our average is 263mh for the
24 units (of which I have 6)....so thus the fact you have no *usually die 2 is dead) burnt dc/dc's due to 400mh testing for 1/2 hour w/o thermal pads for some of
our stuff (probably 1/3..thou I have found burnt dc/dc's after the fact under thermal pads I modded)

Anyway ...consider yourself lucky by them trying their usual evil knc save a buck tricks....you probably are golden ....but I'd repaste for sure (the paste job is really
bad...and not enough and wrong paste...I use gelin extreme works great) get the maxumark brackets (probably less then 10 bucks at your volume rate for 50 cubes) and
get the dc/dc heatsinks if you are not using them already...stay away from thermal pad method...i'd also get the 3000 rpm Noctura fan (27 bucks on newegg) it is great
dumped 10c to 15c off my dies ..all cubes running much cooler in the basement than in the winter last year at 60F in the basement.

But in reality we are mucking thru are stuff the most scary is the crummy thermal paste and not enough on the dies...but with the crummy thermal paste they used
it already looks kinda flakey when you do a re-do in that they did not use enough...so its a time bomb imho.....gonna suck ...but have to do it.....at least our price
of 1900 with shipping reflected our view that it would be temp workers and junk with bad shipping etc...did not expect the other batches to miss thermal pads thou
on all units...but we priced them as if they would come as 300mh units due to RMA parts ..and yes they said our 24 units were new but probably 20% is used parts
esp fans from what I saw....or hell they were run in a data hall as we suspect and knc was the whale that crushed us on getting out of the 215 units of about 175
or some such...

anyway the real issue with die flakeyness is gonna be the wrong thin thermal paste they used and the small amounts used...we have some time but imho that is
somthing a person should be most concerned with and fix..then again once you are down that rabbit hole imho you may as well go whole hog and fix the works
with the Noctura 3000 rpm fan www.newegg.com at 27 bucks and free shipping (they take BTC) and heatinks self stick 8 to a packet on ebay at
19.95 and gelin extrme paste at 20 bucks per 10oz. ..also on ebay...and the maxumark brackets at a bit below in volume of 10 bucks if i count 3 bucks a cube to thermal paste
then looking at about 60 bucks a cube to do the works right. MY view is knc being evil and all and the crummy damage of temp screws and taco'd boards ..little
thermal paste..burnt dc/dc's once a cube is done to the above specs..it is all a matter of FATE at that point...Also my original Titan and those in the fist batch
from Nov 2014 ...MOST of the folks on forums lost their dies and had issues the first couple months...so we will likely lose some dies at the front end..then mostly
from then on your titans should be more or less ok. Me I just am gonna do all I can on the mods for each cube and thermal paste asap so when stuff starts to go
(it will it is evil knc stuff) then I can say I did all I could at the front end and it is just fate and out of my hands at that point

anyway you are in a good postion your stuff was not tested so count it as a win even with the cube per controller issues.....it is damn tough to look at their
new re-designed cube board and see it all new an pretty and a dc/dc (usually die #2) that looks like a charcol brick

Anyway consider that you ducked a bullet...with the non-testing imho and predictable burn out w/o thermal pads of the dc/dc's that they SAID they tested in your case
at 400mh for 1/2 hour and evidently did not...so count it as a win imho......

later

after i tried couple things i was able to run 5 cubes on one titan. I flashed sd with factory 2.0 then i upgraded to 1.0.4tarkin and restored to factory settings if i remember correctly otherwise it had problems with starting all die's and fell in the restart loop. Upgrading bfgminer occured some problems so i didnt do it this time. I was wrong when i thought that 5.4.2 fixes the asic temp missing.
I will try further with other units. Meanwhile probably one of my 2000BB burned/overheated while running 5 cubes.

I had to do the quote above

start quote

If not, then the last step would be to flash full 2.00 image, install my firmware, then install my bfgminer542 patch(which brings it up to knc2.02 as well) ... that should work ..

end quote

On 1 of my new 2.02 arrived Liquidation Titan 400mh units. Also, note that the board on the cubes has been 'redesigned' from the old previous Titans (all of 1st batch and some
of or most of imho 2nd batch)...the most obvious example is 3 small capacitors to replace the one large capacitor....also imho the dc/dc's seem odd ..not as 'robust' not
sure what that is about.....the coating on them seems somewhat flimsy...so anyway not sure if this re-design has any input on above

Anyway, the method of a replacement SD for the crummy NO SD that came with this unit and probably most of  the others required a complete re-do. I did just upgrade
the SD that came with the other unit here and it seems to work ok...but the other 4 I have in the hosting place with maxumark I don't thing came with an SD so it
probably was a complete 'make an SD' project like was done in the above quote

Maybe this is all a given and I don't need to clarify..but just in case....because of the need to make SD's... I use Sandisk 8gb Class 10 only..

Just to clarify my previous post...only 1 unit came with an SD card that had  2.02 on it at my end (2 at home other 4 at server farm) thus most of our stuff imho
was done in the above quoted manner above..using new Sandisk 8gb Sandisk Class 10 SD cards.....from scratch

anyway my 2c worth

I see KNC actually posted a .bin upgrade file now. After comparing differences between 2.00 and 2.02, looks like the changes are accurate against their github source ... so Im confused as to why its not working for you guys.
My firmware 1.0.4 doesnt overwrite any files which are different from 2.00 to 2.02 so everything should work exactly the same.
Let me ask, did you guys use my bfgminer5.4.2 upgrade patch? BECAUSE that *could* cause issues ... bfgminer 5.4.2 is already part of 2.02 so, u wouldnt need to install my patch for bfgminer5.4.2/v2.02 changes

If indeed you did install my patch, I would say ... try the 5.4.2 uninstaller(not sure what affect this will have on 2.02 firmware) so... if that doesnt work correctly, then reimage back to knc 2.02 from another pi which as the image on it OR if you dont have the original knc2.02 handy then.... You can flash full 2.00 image to sd card, then knc2.02, then my firmware(but not my bfg542 patch) ... see if it works then.
If not, then the last step would be to flash full 2.00 image, install my firmware, then install my bfgminer542 patch(which brings it up to knc2.02 as well) ... that should work .. 98% certain =)

what u could do is start w/ making an archive of the /home/pi folder. And i can do a code compare.  Then u can make a complete .bin image of the stock 2.02 and send it to me via btsync(ill pm u info) later when i get a chance.  May be a day or so.

I never did code this up because of way to many variables that can cause cable burn that i cant account for in code. Also,  no matter how u dice it up, the single pcie connector on cube board is responsible for way to much current, it could burn under any circumstance where heat is high enough.  To keep that within spec these titans would have to run at near half speed and noone wants that. 

Got so little time as im working dayshift, i will try to do as much as i can today, and send You logs. If You want i can make img of this stock 2.02 and put it somewhere for You.

One thing you guys could try is setting the Titan to factory defaults on SYSTEM TAB and ADVANCED TAB after upgrading to my firmware when using more than 4 cubes on the controllers. Perhaps theres some configuration bug somewhere. But my firmware works fine w/ pre 2.02 builds and more than 4 cubes so not sure what the cause of the issue is.
Like I stated, its likely theres something far different in KNC's stock 2.02 firmware thats not on their github version of it and my firmware is overwriting it. If thats the case and everyone upgrades (meaning theres no stock image left) then I cant start anywhere w/ fixing it.
Have you guys looked at controller or bridge boards and see if they have different versions between the old Titans and new(old stock) ones you guys got??
Also, their knc2.02 linux version may be different and that adds another variable as well.
I still have yet to receive log files from anyone.

Not up to speed on this yet. We have other controllers on the new stuff..but we do have a couple controllers? on the new titans that are only stable with 4 cubes you go to 5 and as
you state above it then works fine and stable.

We have not bugged you with any of this yet in that we are still getting the 20% damaged and/or run in burn test w/o thermal pads (25+ dies down mainly die #2) ..fun stuff like that

Good thing we knew KNC was evil and bid accordingly in that respect.....thus we are still ok ...but annoying to see new stuff built wrong or busted in shipping.

But anyway ...we have a couple that only work with 4 cubes and this is after the upgrade to gen tarkin stuff...so likely a hardware issue..but the above quote asked...



On second thought we have some units that only seem to work on standard 2.02 with full out voltage of -0.366 standard setting ...anyway that stays stable that is
but we were gonna wait to ask you about such in still tweaking...but likely it is due to the 'toasty critters' aspect of these liguidation titans ..we had 7 units I think it was
without thermal pads ..but RUN 400mh for testing for 1/2 hr according to the sheet tossed in the box. ie.....all of die #2's are dead is the result on most.

So likely they are borderline working kinda sorta clocked down etc on 2.02 but the tarky titan probably considers them 'lost cause' etc...

So anyway they likely are NOT incorrect on this...the 2nd batch auctions we got blown out of when they made them 'open bid' ..ie see the bids....(whale crushed we were)

Someone who got 10 titans said ALL 50 CUBES came w/o thermal pads...if they were tested as ours were at 400mh because they missed such ...could be a whole

rats nest of issues ..just saying.....but again have not really got to this yet...when we gleaned it down we were gonna show you stuff/logs for perhaps some tweaking of
yoru 1.0.4 stuff....(more likely you would laugh and say .its as good as it gets)

Anyway ..the folk likely if ALL their stuff had no themal pads...could very well have such borderline dies ..that work kinda sorta stable full out at -0.366 but do not like
the tarky titan eff mode and such

anyway tossing it out there till we get more of this nailed down

I have yet to receive emails w/ log files from either of you guys but I have received several PM's ... the first clue as to what may be going on is in those log files. Like I stated earlier, these can be obtained from the Logs button in ADVANCED page. Then go to my site then CONTACT then send the log to either of those email links.