Quote from: shadow1975 on August 16, 2015, 08:59:38 AM

I have connected old fan, that was originaly on S5. Everything is the same. The board read the RPM, both red LED lights are OFF and no hashing. I tried also changing PSU, that is working and no resolution, still the same problem. I tried also with reset ( hole in front ), problem stays. How can I do HARD reset with black button ? Is my S5 broken and unusable ?

Wow... This entire episode sounds weird. Never heard of this. Maybe doggie can help. Shoot him a PM if he doesn't answer here soon.

BY THE WAY - I found a 2.0 amp fan for the S5: http://www.amazon.com/Delta-Electronics-FFB1212EHE-120x120x38mm-connector/dp/B002UO0WEI/ref=sr_1_2?s=pc&ie=UTF8&qid=1439716620&sr=1-2&keywords=Delta+Electronics+120x120x38mm+Cooling+Fan+%2C+4+pin

Are you certain you are feeling a "click" when you stick a paper clip (or equivalent) inside the "hard" reset hole?