Quote from: gtraah on May 14, 2014, 12:17:28 PM

Quote from: gbyg on May 14, 2014, 11:06:54 AM

Quote from: gtraah on May 14, 2014, 10:56:04 AM

Quote from: gbyg on May 14, 2014, 10:53:12 AM

Quote from: gtraah on May 14, 2014, 10:20:12 AM

Hey guys I fixed my other miner with the blown Ferrite bead, This was easy to fix because I knew what the problem was, now all miners are fine until I noticed 2 miners in the back of the group with the green lights flashing but the fan not spinning , Im like HUUUUHHHH So I pulled it apart and guess what was blown

2 Ferrite beads the ones Close together Not the ones that a far apart The ones that are Right next to each other sitting on the board like 2 ferrite twins, infact I saw another user on here claiming the same thing happening. I have a strong feeling that the cause for this was a bad power lead
/ Barrel ending, I now have thrown this in the bin.

I am sure the people who may give me advise will know what I am talking about,, luckily I have the same ferrite beads as I have ordered these to repair the 1 x ferrite bead that I blew because I shorted out the red wire accidently.

Anyway I have now wasted 4 ferrite beads ... Basically the copper pads where these ferrite beads are meant to go are fukd, although they are fucked I was able to solder onto as I think there is still contact to the main board.. problem is when I did this and plugged the an on I instantly see sparkes and the ferrite bead goes RED hot I mean this all happens in 1 second and then I unplug it. Now I would like to ask the wizards in here, instead of throwing away 2 seeds as I feel I have 10 CHIPS that can mine but just need a way too, Maybe I can lower the frequency I dont know can I get some help here on a way I can salvage these 2 pods?

Visible issue 2 ferrite beads on each board blown, 2 boards & 2 ferrite beads = 4 ferrite beads Gone.... I do have spare ferrite beads but if there is a way to bypass these beads somehow I feel it wold be better, Even If I run these 2 seeds at 800Mhz And 5v Fan Or something...

Please some advise would be great

Hello,

are you based in EU?

thanks

I am Based in OCeania - Australia - Sydney

check the continuity here and if it is shorted, take off the mosfet with hot air gun. make sure you take the pcb off from bottom heatsink and pad, otherwise it will not come off. i used 300 c with full air speed. took around 2 min and the mosfet comes off . after take this off check your continuity between 12v+ and gnd. you shouldn't have any short. replace the parts and put your FB back on , you will be good to go(unless there any other parts demaged!)

The top yellow arrow is the first pin on top which is number 4(gate) and bottom 1-4 pin is Drain i think. if you find a short between gate and drain in a N channel mosfet, it known to be faulty.

Dammm I dont have a multimeter to check the continuency...

By the way, after I modded each pod I tested them, I waited for 3 accepted shares and then assembled them back together. If the mofset was faulty from birth dont you think this would have burnt up on the moment I plugged in to test....

One other thing, lets just say I burn the contact pretty bad basically between both FB the ones very close together , you can see the copper on the board all around these 2... I was wondering if because of this situation does these mean that its a constant short between 2 FB, I tried my best to make the solder not touching the other FB so each Dab of solder is on its own with each side of the FB, the solder is not connecting to one another but like I said underneith it is bare copper does this that both FB are shorting out via the copper?

Also is there a way to do what you said without a multimeter?? And are you saying that the Gridseeds can do without the mofset?

Does anybody know what I can do if I do not have a multimeter? I have got 2 pods just sitting there, These few posts above tell the story, so far I have been told to do something but I do not have a multimeter to check continuity, is there anything else I can do? I or is what is said above the absolute only thing i can try at this point?