Topic: Gridseed blade - blown cap - need help (Read 584 times)

Thanks!  I was hypothesizing a ferrite bead from the "FB" as well plus it would make sense coming off the usb lines.  I know they are bad on each half as one is exploded and the other cracked in half.    The explosion made me 2nd guess the FB and label it cap more than anything because it made such a wonderful sacrifice when I had (+) touch (-) input while moving things around - I of course had the thought a mere 20sec prior to just unplug PSU..just unplug..but ohh missed hash..unplug..hash..unplug..and hash won for a stellar 20 seconds more!  LOL - Such a noob.

Sorry I don't know enough to triage a hive of bees outside going after the big items, like the mosfets or barrell caps.

I don't know which is worse, a high ticket item that can't pay for itself - OR the fact that leftover blades are now $750, down 50% from 6 weeks ago.

Sir, I believe that is a ferrite bead.   I am far far from expert on this type of thing and I am basing that only on the label on the board but believe that is what it is.     What makes you think that particular component is bad?  If it is just because it is a short I think that is expected unless I am mistaken.  HTH.



I have a short in one of my blade halves that I have no idea how to even begin to figure out, when I put my meter between any - and + of the 12v (for instance the power plug, or anywhere) my meter (autoranging ) immediately jumps to 0.000XX ohms like a dead short then quickly goes to about 0.58 kOhm and settles there.  

I added a heatsink a week ago to the back of the board (of course with epoxy...bleh) and after that when powering it with that stupid barrell conector gridseed loves I heard the unmistakable bzzt like there was a short so I immediately unplugged and the above is what I've found with the meter.  Its been dead since as I didn't think powering it would be wise and I don't know where to begin looking.

The way the meter behaves seems different than say touching the leads together or putting the leads across a known value resistor (or one of the beads even)  thinking it may be indicative of something.  Could be my imagination and inexperience though , but it is not a dead short...


Any idea on mine?  Where to even start looking?  

The aspect I am not quite getting it why this cap (assuming it must be) has yellow/gold trim rather than the std silver.. I tried to find info about that presuming it is a higher sensitivity but I can't dig up any part/example. 

It would help if I knew for sure it was a cap and I could just throw in a large one in that pkg and fire it up.

Thanks in adv.

I need help identifying the cap on my blades next to right of the usb port.

I hate to just guess before replacing the one circled in green:



Any lead someone knowledgable has is much appreciated..
I won't go into how I shorted it because I feel stupid enough as is.

Thank you!