If you feel your H340 is running too hot and/or you get periodic notifications to repair your system drive, try installing Speedfan.
My H340 CPU has dropped from 65C to 52C and the drives from 47C to 34C after installing Speedfan. I do not find it particularly noisier.
One caveat; after installing Speedfan the LED's on the front of the H340 are all off, all the time. This doesn't really bother me cause I found them kinda annoying anyway.
However, if anyone knows of a better way to control the H340 fan, or how to configure Speedfan so the LEDs can work properly, please let me know.