FIRST
I know this may seem like a very silly question, but from the picture of the fan I can see that the fan is powered through the black wire-shielded connector on the far left, and then an optional fan can be connected through the connector in the middle... but what is the connector, the black and yellow wires coming from the optional connector, on the far right for? I connect 2 fans up just fine without the need for it, I can't see what it does.. though I'm probably being very short-sighted!
SECOND
My 2nd question is how my motherboard fan connectors work. As you can see from the 2nd picture in the motherboard manual I have 3 'Chassis' connectors and 1 'Power' connector. We can ignore the power connector as there's no way to control the speed of it.
As you can see, Chassis 1 is a 4 pin connector, and the other 2 connectors are 3 pin. I have my front 2 case fans (which are 3 pins) connected to Chassis' 2 & 3. I am able to control the speed of these fans through the motherboards software. However, when I connect a fan to Chassis 1 the fan HAS to be a 4 pin connector in order to be able to control the speed of the fan. If it's a 3 pin, the fan will just run at full speed. Now I can see on the manual the 4th pin is 'Fan Speed Control'... but why is it I'm still able to control the speeds of the other Chassis 3 pin connectors, but not this one?
Many thanks in advance for the answers!
I know this may seem like a very silly question, but from the picture of the fan I can see that the fan is powered through the black wire-shielded connector on the far left, and then an optional fan can be connected through the connector in the middle... but what is the connector, the black and yellow wires coming from the optional connector, on the far right for? I connect 2 fans up just fine without the need for it, I can't see what it does.. though I'm probably being very short-sighted!
SECOND
My 2nd question is how my motherboard fan connectors work. As you can see from the 2nd picture in the motherboard manual I have 3 'Chassis' connectors and 1 'Power' connector. We can ignore the power connector as there's no way to control the speed of it.
As you can see, Chassis 1 is a 4 pin connector, and the other 2 connectors are 3 pin. I have my front 2 case fans (which are 3 pins) connected to Chassis' 2 & 3. I am able to control the speed of these fans through the motherboards software. However, when I connect a fan to Chassis 1 the fan HAS to be a 4 pin connector in order to be able to control the speed of the fan. If it's a 3 pin, the fan will just run at full speed. Now I can see on the manual the 4th pin is 'Fan Speed Control'... but why is it I'm still able to control the speeds of the other Chassis 3 pin connectors, but not this one?
Many thanks in advance for the answers!