Maybe. I have one incinerated Y adapter, showing that even that can't make up for a bad power supply or overloading or a connector that has been plugged and unplugged with the power on (thus causing sparks which cause little bits of resistance which warm up which.....)
Still, it is also true that there seem to be these islands of stability on Titans, and if that island is at 300-325mhz then you're kind of stuck with it.
Back to work here. Have two more boards to keep me busy over the next few days.
If ya ask me, based on my single Titan up in hosted up in Alaska .... I believe heat is the number 1 killer of these things.... that combined w/ the fact how close these things are pushed to the edge by users.
But, my Titan has ran for less than 75-80C on all DCDC's since the day it arrived in 2014 ... clocks 325mhz, volts set to -0.0366v or lower.
It did survive one PSU dieing - modular connector sockets on the PSU actually burned up. Titan connectors were fine.
Other than that, it has hashed along happily the whole time, just like it did since day 1.
I could be totally wrong tho =P
But yeah, its a hunch based off of seeing the settings and temps some users are pushing these things through. I mean YOWCH!...
yeah i essentially agree...BUT again....was told back in the day my temps/speed with overclock etc was just dandy (silly me) and that it has run more or less as a champ at 15 months i lose a bit of hash on a few dies (not counting the 2 dead dies on 2 dead cubes that never really worked) well hell.....so yeah I likely will pay the piper ..due to the only lately (last couple months) seeings how close to the edge I am
but to be fair...to the folk over the last year running these things ..esp us 1st batch titans with the bad dies which I and others were told 'specifically' to run full out at 325 0.0366 etc...well ..clueless as I was I ran mine full out all summer of 2015 with die rates in the low 90's some at 95c 96c
the guy I got the used Titan from Australia (way in the outback I kid you not) I think was away on work and eventually could NOT run them remote fire hazard...also had burned out 2 sets of psu's I think..thus how I got them in the panic sale of march 2015 on the expectation of all that NEW scrypt equip that never came to pass
I should post a pic of those cubes...run hard ..really hard...the cubes are faded with heat spots ...looks like the hood of a hot rod in Arizonna after racing all summer...kinda cool....
and these 4 cubes are MY MOST STABLE OF THEM ALL ...FULL OUT at 325 and 0.0366 since March w/o missing a beat
go figure
being electronic clueless is there some kind 'burn in' in that they ran too hot ...adapted and then now 'like' it that way?
anyway ..take advice here of everyone on how to tweak this stuff...the recent cube I got is set to 0.06xx volts at 300mh
and stable...so I left it....no idea how he got voltage that low at 300mh I've never had much luck
anyway my setup is probably an 'freak' setup and due to decent high end psu's as stated in other posts etc
but again .....I was 'assured' when I did over clock these to 325mh by I think it was Kurt at KNC? All was fine. They
could run easy and safe between 90c and 95c no problem and up to 100c...I kid thee not..what I was and sure others
were told....there is a reason that knc forums was 'yanked' imho ......sheesh...I saved a lot of stuff I should see if I
can dig out that email exchange (hope it was email ...coulda been knc forum but i don't thinks so) I'll look
I'm sure others on here were told the same back in the day as first batch titan owners.
I should have known better ..but in my case NO real issues of note...thus never had to delve into tweaking much (till lately a bit)
anyway got on a side note got 3 cubes 1 cube only 1 die works...1 cube the 300mh at low 0.06xx low voltage..go figure stable and another one in the mail supposedly fully working...so figure about 190mh to 200mh for 260 ltc (I hoard so on paper I sold LTC at it was almost exactly 750 usd)
my way around it 2 cubes and an extra die as over kill ...when stuff starts for 'fade' as i should 'mentally prepare for" a way to compensate for the likely 'dribble down in hash' coming for the as of march 8th 16months on both Titans the new and used one...both are Nov 2014 units
so hell 'overcompensating' with equipment....better then fretting about it ...like most of my life issues if it bugs me enough
toss money at it..seems to work
But listen to folk here...very likely ...very soon I will be scrambling like everyone else with different voltage and hash settings
due to the 'heat debt wear and tear I have put these units thru.....but as yet ..still good (knock wood)
later
Perhaps, in which case the only Titans that can be fixed are the ones that smoke power connectors or blow out power supplies, both resulting in shorting on power-up. This is possible, although sad.
However other things just seem odd. For example: I have another dead titan board in for a review. It hashes on one die. Checking in bfgminer I see that only two dies ever respond, the other two do *nothing* no matter what. It has the jumper missing.
I wonder what happens if I put the jumper in. Will all four dies respond like insane children? Why would KNC do this?
Then I look at the supplies. Two are missing, so I check resistances on the chip side. Normally I see around 7.5 ohms if chip is good, 0 if shorted (to ground). On this one I see four power supplies reading 7.5,7.5,7.5,7.5. The other four read 7.5,600 and 7.5,140 ohms.
THAT IS IMPOSSIBLE! The supply outputs are ganged together in parallel. There is no way on EARTH that the outputs can read higher resistance. What the heck is going on?
I'll pull a supply and see. But I'll also pop in a temporary jumper and see what happens.
Just saying KNC being 'evil' and all ...could they have PULLED these resistors when they sent out those 1/2 hashing titan cubes for replacements for 1 dead cube trick..thus making sure ..as they 'claimed' at the time these were UNFIXABLE?
I don't do electronics...but could it be...something like this to make sure we could not hash with them 'after the fact'?
just a thought ..but again I can barely follow your electronics sometimes