Is such a thing like a PCI Express fan controller produced anywhere? I have searched around a bit, but I can't find anything like this. And yet it would be extremely useful to a lot of people, I suppose. Essentially have a Super I/O chip (or a few) on a card that connects to the motherboard via PCIe (1x would be enough, I assume) and that has several (8 or so) 3-pin or 4-pin fan headers. Maybe a temperature sensor on it as well. That way you could connect all the case fans you would ever need to it, and still retain the ability to monitor and control all of them, individually and dynamically via software (SpeedFan/lm_sensors). It could also provide some additional temperature measurements at the card, reflecting the air inside the case better.
After all, a lot of motherboards come with very few fan headers, and even then only a subset of the provided fan headers have the ability to control fans to begin with. And nowadays, especially since the PCI interface is starting to be phased out, motherboards usually supply a lot more PCIe slots than are normally utilised. Other fan control methods are often far inferior - either you have to change fan speeds manually (which is extremely suboptimal compared to automatic software-based control), or utilise an existing controlled fan header (which makes all fans run at the same relative speed, or half of it if using a simple Y-splitter). So I don't see how there would be no interest in a solution like that.
I don't suppose such a thing already exists, but it doesn't hurt to ask. Maybe there are similar solutions?
After all, a lot of motherboards come with very few fan headers, and even then only a subset of the provided fan headers have the ability to control fans to begin with. And nowadays, especially since the PCI interface is starting to be phased out, motherboards usually supply a lot more PCIe slots than are normally utilised. Other fan control methods are often far inferior - either you have to change fan speeds manually (which is extremely suboptimal compared to automatic software-based control), or utilise an existing controlled fan header (which makes all fans run at the same relative speed, or half of it if using a simple Y-splitter). So I don't see how there would be no interest in a solution like that.
I don't suppose such a thing already exists, but it doesn't hurt to ask. Maybe there are similar solutions?