ive been mining with asics since 2015 and since then have purchased and maintained 11 x antminer s3's, one sp20 jackson and some other dragon miner that gets about 1th. Anyway, throughout the years ive been pretty lucky with how little has gone wrong.
Ive had the odd pci cable melt on me due to high draw/poor cables etc and the odd fan fail.
All of these units are now getting pretty old and tired (filled up with dust) etc. I do take one of the shelves every now and then to dissemble and clean with an air blaster and ive also even tried to repaste some of the asic's.
However some of my machine are starting to get the odd non functioning chip (Im mainly referring to the antminers when i say this)
My Main question is does anyone offer a repair server in the UK or US to have these chips replaced (i think the term is reworked)
My second question is a bit more of a read if youd like to continue. - a year or so back i purchased another antminer s3 for spares and repairs. so far i managed to make use of the 2 cooling fans for my tired equipment but always wanted to see if i could repair it so i could atleast get some hashing power out of it.
The main issue with this was the control board would light up red and not do anything else. After alot of tinkering and using a TTL cable via putty i managed to rewrite the firmware to the antminer s3 control board. HOWEVER when entering all of the information into the config page and i click save. when i go to check if it is mining it shows blank on the miner status tab-- No hashboards are viewed and im pretty much stuck there. Doing all of this with the case off i did notice the heatsync on both sides are warm so my guess is they are getting power but the software or pcb is not talking to them.
Any help / solutions would be great -- Im quite handy with a soldering iron but not down to rework skill. absolutely useless with programming but i do also know my way round a multimeter.
Thanks In advance
heres a pic of my setup
:https://ibb.co/hhCXib