Ok guys, I need some assistance

I had an August kit with 2 boards (~47Gh/s)
so the M-Board is V1.0
on Friday I got 10 more boards and placed them 1st in-line then added my 2 pre-existing boards with last board being EOL one.
All this was powered by a 1Kw PS that died on me Sunday evening.
So I had it running about 48 hours.
All the new boards are stock = not overclocked.
Now I placed a spare 430W PS on the BF rig and it runs, however I can only see 96 chips running = 1st 6 cards.
Any ideas why it doesn't see the rest?
Thanks
First check if the boards are still OK by running 6 boards at a time. Do this for the other 6 boards too.
Then add 1 board at a time till you get issues.
Looks like a PSU problem. 430W is probably not enough for 12 boards.
Also try to spread your boards. Skip positions on the M-board.
Its ok to run XXXO-XXOX-XOXO-XXXX for example, X being a board.
(Some will say the boards need to be adjacent, but I have an M-board running with skipped positions without problems).