For those in my boat with a corsair 1200i they may have considered for use on the Neptune (don't work see post below) and or the Titan (see post below)
I got this reply from Kurt at KNC Forums...so definitely don't get this for the Neptune and probably not a good idea for the Titan either
again for people in my boat who may have one of these lying about ..they 'thought' they could likely use with the Titan...er not looking likely now imho
Kurt's reply to my question on the corsair 1200i and its use with a Titan...1st line is in regards to the Neptune...2nd line is in regards to the Titan....
I quote:
"To answer your additional questions, the 1200i is a multi rail power supply that cannot handle the frequency set at 425MHz, there is no fix for this as the power supply is inadequate.
We do not know the exact specifications of the Titan miner yet, so it is best to wait until final specs are released."
end quote:
Anyway just a heads up to those having these corsair 1200i units they planned to use with Titan (or Neptune) ...and/or to those who were gonna buy such.
Probably that would be a bad call imho...
anyway for your consideration
Searing
I'm running 1200i supplies no problem what-so-ever getting enough power to ASIC with Y splitter cables; they will even run single cable if you set 40A per rail in the software. Also they run very efficiently with two cubes per PSU.
It is not a multi rail PSU, it just has OCP (which is a good thing!).
The problem is not with the PSU, as KfC are trying to suggest, it's with their 100w per cable "design".
I spoke to Kurt before buying AX1200i, he told me they "should be fine" and I have a recording of the phone call so don't accept that answer! I was told in the same call that a single PCI-e would be fine and they hadn't had any problems using good quality cables because the socket is "fan cooled".
KfC still refuse to do anything about the dead die on my Neptune because it's over 3TH as it is; not exactly what one would call "over deliver".
On a side note I fried my first PCI-e plug at the board end today. Thankfully the OCP kicked in and prevented a possible fire but this was with 16AWG:

I'm glad my lawyer got me a refund.
Cost me around 1000 in the beginning, but at the end, I got back a full refund of my order and KNC had to pay for my lawyer.
I would very much like to have a copy of his contact details; if he speaks English?
well I likely will get the cables just to be safe...prob just use the corsair 1200i on something else...but get the cables for a 'backup' only kinda thing..heavy duty
cables are probably not a bad idea on the beastie anyway as long as I have such ..contacted the guy selling cables (mods) for this ...we will see
all I can say is what Kurt in the last few days replied to me via PM on knc forums
here is the info/link again I posted here for those with corsair 1200i potential issues
https://bitcointalk.org/index.php?topic=170332.msg8030065#msg8030065again just going by what he said
anyway will get the cables for piece of mind and just use the corsair 1200i on something else and/or just keep it as a rather 'lame' failsafe backup supply? might work as that
if the cables are the issue and I get some more hefty ones...
again the joys of 'stuff' ....too much stuff....www.coinbase.com is looking pretty good vs all this pre-order drama etc
Searing