PC Fans

Right so...

I'm wondering how many PC fans people have managed with their motherboards on one header. As I only have 1 CPU fan header and 1 sys fan header.

I can't find any of my motherboard's header ratings online. I've heard the general rule is 1 amp? But that means I could run about 10 fans off a 1 amp header which doesn't sound right to me... I've currently only got the 2 plugged in via a splitter for now.

There are definitly splitters out there with more than 2 ways, e.g. search "VanDeSaiL PWM Fan Hub Fan Hub" on Amazon which suggests its fine, as do the numbers. A Noctua NF-P12 redux-1700 fan for example is rated 0.09A, 12V so quite a few of those are going to run on a 1A bus. As your MB manual does not give a rating for max current on that header you could take a look at a few similar boards and see if they say anything useful. I would expect an output like that to be current limited / short circuit protected so there is very little chance of frying something if you stack too much load on it.

Another option would be to get a bay insert fan controller with the advantage that you could tweak things externally if you want to flip between gaming and silent modes. e.g. "Blizim 10W Fan Speed Controller" and similar on Amazon. These take power from the main cable loom, not the motherboard headers.

Cheers for the reply, I have just contacted Gigabyte, via their eSupport, and they've told me the max output is 0.5 amps.

The 2 fans I have at the moment is a 0.08A fan and a 0.12A fan. So in total a 0.2A draw, I don't see a problem in adding another 0.12A fan to the header perhaps, daisy chaining a splitter onto the original splitter?

Is there any PSU powered controllers that can be PWM header controlled that you'd recommend?