ref my previous post
https://bitcointalk.org/index.php?topic=170332.msg11399571#msg11399571I flashed the image to the new card and thank dog the titan came back to life !
I can start breathing again now.
I would still like to put the cubes on individual PSUs though, so if anybody has knowledge of the cabling and pin outs for EVGAs and Corsairs I would appreciate a tip.
I guess I could use a meter on the cables and test that all inputs and outputs correspond, but a guru would be better, plus I might make a v costly error !
Thanks
for the corsairs the Y cables I got from Sweden (used on the 2nd Titan) the usual ....single end goes to the PSU.....the 2 leads from the 2 slots on the psu goes to 1 of 2 ends on the
Y cable.....and those two blend into the 1 that goes into the cubes..that is how it works on my corsair ...assuming you got the 16awg leads with the corsair? model?
as to EVGA's if they are big enough beasts you can do what I did to save getting a 4th psu for the 2 titans in the below quote in your other msgs
y cable setup using some of the knc Y cables (from your questions in the 2nd part of this msg)
my setup of the 2 units on imgur
http://lostgonzo.imgur.com/whatever a lot of this depends on if you copy what I did you have a big enough and 2 of them PSU's over 1200w ..and again just using the 750w on the 2 cubes and controller remaining
see below reply and my 6 cube and 2 cube arrangement (saved my buying a 4th PSU for the 2 titans)
Hi, there,
I'm another idiot who bought a 2nd hand Titan !
Was running fine for 2 days, needed restarting a few times to get dies to work (they "die" after around 8 hours or so, but always seem to come back after a power down).
Anyhoo, I did a power down this morning and it came back up but one die was still running only 2A so I dropped the voltage and restarted again.
Now nothing comes back up at all. No web interface, no ssh.
I have disconnected everything and reconnected. Nothing. I have no LEDs showing on the daughter board where there previously was 3. The controller appears to boot (red LED on and the green flashes a few time, as does the ethernet LED). But still no net access to the controller.
I am currently downloading the 2.0 image to try flashing a new sdcard, but I thought I'd ask if there is anything else I should be checking.
Also, I have the Titan running on 2 EVGA 750 G2 PSUs. Are these sufficient ? My killawatt shows the power draw is around 1500W at the wall.
I was going to use two corsair 750W PSUs to power a cube each, but the Y cables I have on the G2s don't fit the Corsair sockets. There is a plastic bridge between 2 pins that prevents them going in. Would it be safe to cut that bridge, as I assume the pin outs should be identical for PCIe ?
TIA
I too got a 2nd titan (it may ROI in 2 more months ..or 4.5 months total) unlike my no roi no refund 1st batch orig 2 dead die unit....sigh...but I have a SLIM hope I can use
this to maybe just maybe squeak ROI out of it with electricity ..but it is gonna be damn close
If the dies can't come back it has been my experience they muck things up a bit 10mh to 15mh less ...so that when away when I turned them off (2 dead dies 1 each on 2 cubes)
As to the 750w above
I have 6 cubes (3 each) all with full working Dies running full out on 2 corsair 1200i psu's each on a separate circuit (in bsmt I can do this easily) 20 amp 220v w/o issues
I also used the surge protector with them below...it comes with the euro 220v plug from the titan plug to the surge protector you have to get the 220v cable you need
for your version of the 220v plug you are plugging these puppies into..again me I have 1 each on the 2 circuits (3 total for both titan(S) the 6 cube and 2 cube)
it has saved my butt on brownout I mean the really weird kind that flicker like 15x in a 2min period the ugly type THREE TIMES so far ..so I swear by my arrangement
here is a link .....if you have 1 titan complete both psu's on 1 circuit and not paranoid like me ..I'd think that one would be fine
http://www.amazon.com/Tripp-Lite-EURO-4-International-Protector/dp/B00006HZ4M/ref=sr_1_1?ie=UTF8&qid=1431864095&sr=8-1&keywords=tripplite+euroso anyway ....depending on your circuit arrangement the 6cubes work fine on the 1200i corsairs
as to your 750 watt question ...I have 2 cubes on a Seasonic 860w (the 2 cubes with the 2 bad dies 1 to a cube set to off) I THINK 750w with y connectors will work
but others on here should jump on and correct me if that is 'light' on the psu dept for 2 titan cubes.
s ..but if you have like a 1200i or 1300w couple of PSU's ..i think you said EVGA but unsure of the size....you could play my game and use 2 of those and a 750w on the side
with the other controller for the last 2 cubes....saved me from having to get another 1200i corsair...I can get by fine with the 3cubes on 2 corsair 1200i's and 1 860w seasonic
for the controller and last 2 cubes
anyway good luck hopefully you have enough of the proper psu's about from a previous miner to pull this off w/o any expense
oh and by the way good to see flashing the SD worked..I was kinda wondering...flashing a new SD is extreme but it seems to work ok....was so bad with me that when
(ah no longer) knc made updates I ALWAYS just flashed a new SD so I had the old SD I could pop in as a catastrophic failurre..yep ..what happened to you would happen to me
so stopped the auto update .always flashed and viola when it dorked up (and it did) i could toss the old SD back in ..this all is likely moot 2.00 is the last SD image that KNC
will release imho...not sure if others are working on this open source or not ...but anyway I"d flash a spare thou just so you have something to toss in quick if you have a power
reboot and it goes funky again.....good to see it took thou....
