I want to add another case fan to create more efficient cooling . Since the only one chassis fan connector on mobo had been used for the first case fan , I wonder is there any case fan information would be register in the system information if I install the new case fan ( which suppose to connect to the molex connector of PSU ?)How many wattage consumption?
Dual Case FAN
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jcnoernberg
New Member
connect it to the 12v or 5v and you'll be fine. who really cares if the 2nd fan registers or not, right? You could also run the fan in parallel with the 1st fan... but i always just tap into the molex, as to not stress the motherboard.
The_Other_One
VIP Member
There's certainlly no harm in adding another fan as long as it's blowing the correct way 
(in front, out back)
If you're out of motherboard headers, you can only connect the fan directly to the power supply using a molex connection. There might be motherboard header splitters, but I wouldn't suggest using one of those(might draw too much power)
Wattage? Don't worry about it. Unless you have one of the MASSIVELY powerful $25 fans or something, I seriously doubt one other fan would cause any problem or noticable difference in power usage.
(in front, out back)If you're out of motherboard headers, you can only connect the fan directly to the power supply using a molex connection. There might be motherboard header splitters, but I wouldn't suggest using one of those(might draw too much power)
Wattage? Don't worry about it. Unless you have one of the MASSIVELY powerful $25 fans or something, I seriously doubt one other fan would cause any problem or noticable difference in power usage.