AnsweredAssumed Answered

The second fan on my Radeon 7870 is not spinning?

Question asked by undergr3nades on Jan 6, 2016
Latest reply on Jan 8, 2016 by amdmatt

Unsure if this was happening before the update or after but here it goes:


I have the sapphire radeon 7870 HD card, with two fans.


One fan works, the other fan does not. On start up, both fans do a quick spin, with the working one continuing to spin.


If I open Radeon global overdrive settings, I am able to manually boost my fan speeds up to 80%, causing the second fan to finally work.


Anything less than 80% and the fan does not work.


My first guess is that it is a power issue with my PSU? It is a brand new 750w EVGA nova


Second guess is that it is a new default, where if the card gets too hot, the second fan kicks in (which I doubt is the case).


any insight to this is helpful, and I've already submitted a ticket, just thought I would pick some community members brains.