Djembe is correct. But because I am mad I can't watch USA/Canada hockey I have time.
Passive and Active are the two types of cooling solutions. Strictly speaking in notebooks fans and heat pipes are the only active cooling solution. So while Djembe said HDD's are passively cooled and that is correct. They use heat dissipation a very simple and crude method. But that heat dissipates to the rest of the system so it does have a measurable effect on the thermal solution. Thermal transfer is a more specific type of dissipation. At least in notebooks. It is not Active it is still passive but much more efficient. And almost always at the end of a heat sink and heat pipe you will find a fan (Apple tried to not have a fan once) which is Active.
The thermal solution and thermal characteristics of a system cannot ignore or disregard any heat generating component. As such while HDD's neither have active or aggressive passive thermal solutions, they still remain a sum of the whole. As such they are a factor regardless.
You see the way described in this rant. HDD's using dissipation? Which is heat transfer, CPU heatsink is heat transfer? Dissipation also. But consider, have you ever stuck your hand in a 400F oven? Yea not so bad? Very bad heat transfer. Consider putting your hand in 400F of molten solder, yea not so good?
Heat pipes I think are active because there is a "phase" change involved?
Anyway The heat from HDD vs SSD is rarely of a significance as to be material to "noise".
Of course if I could watch USA/Canada I would not be posting this way esoteric stuff.


