asicminer v2 blade

[ijchan223]

hi, i am new to the game all went find for a couple of weeks and now i get 4 x in the gui so i suspect a power supply lane issue i know a little about the board but it is difficult to troubleshoot anything without a schematic, can someone point me to the right direction

also shouldn't the board still hash data with a single lane down ?

[obelisk910]

I have a v2 blade as well. The trouble with the v2 blade is it is made to set up and leave, limited overclock ability etc. The first gen allowed you to check voltages on each individual lane of chips but I'm not sure that's possible with v2. Not sure if you have seen the manufacturer-published "guide" for setting up the blade but it's one pitiful page with almost no information. And it's v1, I don't think v2 even has a guide/schematic as far as I've found.

I think that the first thing you should check is your power supply. Check that your 12v rails are actually running at 12v with a meter, I had an issue with this in a previous PSU. Also check that the rails are rated to handle 9-10A because the only reasons I can imagine for a lane of chips not to working is

1) it's not receiving adequate power
2) it's simply a bad board.

As to your other question I believe that usually the board is still able to hash at a reduced rate with one lane down. This is slightly concerning actually, I am wondering if you could potentially have a bad blade if it is not partial hashing. Definitely triple check your power supply and make sure it's functioning properly.

If you find out any more info i'd be happy to hear it.. might be able to think our way through this

[ijchan223]

Thanks, i appreciate the advice i would swap the power supply to bench top unit to see if it makes any difference

[LupinS]

There is a thread how to overclock V2 blades, try to search