My sd card got corrupted so I imaged it again not realizing I used an old version of the image file from megabigpower. Nothing but low hash rates and 0 hash rates for 2 days.
When I realized this I put a new image on the sd card from megabig, the one linked in their help file pdf.
Its been running rocksolid for 2 days at full hash rate, about 30-34 ghash per card on an 8 card setup.
so, make sure you are running the most current image file as it makes a huge difference
Make sure you are using the correct image. On the M-Board it will say what version the board is. You can fit the V1 and V2 image on a 4GB SD card, however you will need an 8GB SD card for the V3 image.
V1 (3.64GB)
https://mega.co.nz/#!GZEwQRiJ!TqG52DBj07C_zGO38dhXuyeNhwZ42VB2qk2ErfsrUZ8
V2 (3.64GB)
https://mega.co.nz/#!iVEwFKpT!TqRndnWurfcQ0V2gJb2sQlNcSGoMF1B7YpUoGDvVebI
V3 (3.69GB)
https://mega.co.nz/#!7AFVhLwQ!BmgAIx32aQQxyadT1WKdJzNOUGQAQcQgYemfSJ6kMNM
Mirror:
https://www.dropbox.com/s/skr9vitueeyxwmw/miner-v3-image-11-15-2013-customer.imgHey, thanks for reading my PDF
Technically, i've been told that you can run the latest version on everything - but i'm pretty pessimistic on that still. Putting in a new SD card does wonders, as it has been noted in here time and time again that they do putz out.
I know that kits say overclockable - but due to the different card types, I fear that many people will try to tweak their systems using the wrong autochip commands and so on.
V1 cards can go up to 57
V2 cards can go up to 55
V2.2 cards (with the metal backing) should stick around 53
I've spent so many hours fiddling with these units and in my opinion: keeping it simple seems to be the best solution.
If you don't know what you are doing, just run with the basic setup. I think a bunch of people are trying to squeeze blood out of a rock (so to say), and frying their cards in the process. I know the difficulty is going up crazy, and yes - it bums me out - but that is the way bitcoin was setup from the start.
Dave in Germany right now - then he's going to finally meet Putin in real life(!). Those two are going to get something hashed out concerning next-gen rigs and I can't wait to see what happens.
-Jason