I turned off v-sync whilst playing a couple of games just to see what frame rate would be achieved and I noticed that my GPU makes a high pitched noise but this only happens whilst playing a game as when pauses occur the noise stops immediately and resumes just as quick when the game starts again. I wanted to see if it was the fans so I went into MSI Afterburner and played around with the fan speed testing a bunch of levels to see if it was a specific percentage that caused the noise but nothing. The sound that is made is never heard when doing this.
I dont understand what it is because surely putting the fan speed at 35% in game would produce the same sound as 35% on the desktop but there is a high pitched sound. I turned on v-sync on CS-GO and the sound does quieten down to the point that it is no longer noticeable but I would still want to find out what is causing it.
I am 100% sure that it isn't coil whine because as I said, spinning the fans up on the desktop doesn't produce this noise. To add to this, when using ALT+TAB the noise also immediately stops and doesn't come back until I go back into game. It could be a game issue as I don't seem to get this with GTA 5 or games that are also as demanding.
Thanks in advance.