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Hi there
I used to have that board, and it worked like ****, missing steps, etc.... then i realized that the problem was heating. The fan doesnt cool the board good enought. If you touch the heat...

Hi Fbx

Let me tell you the solution i finally found.
I had many missed steps, at the end i couldnt finish anything.
I realized that mising steps increased on hot days, so i installed a second...

sorry i did not explain my self. what i meant to say, i change the DIP settings limitting current up to 50%, 75% works fine too, but when i let 100% of the current ... it blows

Look, i finally just limit the energy up to 50% and i havent got explosions lately... is been working fine, so i decided no to do anything else

Thanks Petsat,

i'll take a look to those pages!

Hi harmut,

Thanks for your reply,
Let me try to explain myself.
I had the old blue chinnese board working for about 1 week until exploted. (no idea why this happened).
so i bought two of these...