Controling case fans
- Thread starter BARRYWB
- Start date
dugdiamond
New member
the case will only control the fans that come with the case, and these with stay at a static speed that you choose.
the only fan that is controlled by the mobo that self-adjusts is the CPU fan
all other fans that can be added to the mobo will also be static, but can be adjusted by voltage reducers and/or an external fan controller (usually a bay controller)
your mobo cannot control the fans that come with the 600T
the case's fan controller it there to help aid throughput of cool air within different ambients (summer/winter - or different overclocking profiles)
the only fan that is controlled by the mobo that self-adjusts is the CPU fan
all other fans that can be added to the mobo will also be static, but can be adjusted by voltage reducers and/or an external fan controller (usually a bay controller)
your mobo cannot control the fans that come with the 600T
the case's fan controller it there to help aid throughput of cool air within different ambients (summer/winter - or different overclocking profiles)
Ya93sin
New member
Depends surely?
I have an ASUS Motherboard, it controls 4 fans-2 "CPU" fans (though in theory you can put another fan in the second slot, but it would respond to CPU temperature (handy if you had an exhaust fan at the back say), and 2 "Chassis" fans.
In AI Suite II in Windows 7, I can control the exact speeds of those 4 fans, and create or choose custom profiles.
In my case I have both CPU fans on the NH-D14 connected to the CPU_1 and CPU_2 fan headers.
I have the exhaust fan and front intake fan connected to the Chassis_2 and Chassis_1 fan headers respectively.
The top two exhaust fans and the bottom intake are running at the highest frequency (i.e. I cannot adjust (maybe it works with SpeedFan?) their spin rate).
I suppose it will vary between different manufacturers and different boards.
dugdiamond
New member
Ya93sin
New member
please read the OP again
Are the case fans themselves built in a different way?
dugdiamond
New member
"is it better?"
dugdiamond
New member
There are 3x 3pin fan connectors under the front panel, for attaching ADDITIONAL fans inside the case.
Most mobos do NOT have the capability of changing the voltages via 3pin fan connectors. only 4pin fans are heat monitored!!!
Testings have revealed the fan controller that sits atop the case is to be something of a disappointment. There are barely any difference between its maximum and minimum settings, either in the noise of the fans it controlled or their rotational speed. These observations were backed up by several testers, and they found no difference in CPU delta T and only a 1C change in GPU delta T when we changed from the minimum to the maximum speed setting.
With this in mind, to fully control the speeds of fans and monitor temperature efficiently, i suggest a front-bay fan controller (with thermal probes)
Most mobos do NOT have the capability of changing the voltages via 3pin fan connectors. only 4pin fans are heat monitored!!!
Testings have revealed the fan controller that sits atop the case is to be something of a disappointment. There are barely any difference between its maximum and minimum settings, either in the noise of the fans it controlled or their rotational speed. These observations were backed up by several testers, and they found no difference in CPU delta T and only a 1C change in GPU delta T when we changed from the minimum to the maximum speed setting.
With this in mind, to fully control the speeds of fans and monitor temperature efficiently, i suggest a front-bay fan controller (with thermal probes)
dugdiamond
New member
But I was replying to your post
Then I was asking about this: "your mobo cannot control the fans that come with the 600T"
you say your mobo has TWO 4pin CPU connectors
cool
but to run all the fans off the one EXTRA 4pin - would be stupid!!! where are the volts going to come from, to run all the fans???
Ya93sin
New member
I'm not :S I'm running one fan per header i.e. only controlling 4 fan speeds. The other 3 are not controlled, but still draw power from the motherboard.
This is why I was wondering, if the OP has an ASUS mobo, they can take advantage of this. If not, then I agree, using a fan controller in a bay is better, and its what I plan to do in a couple weeks.
dugdiamond
New member
yeah that was a sweet thing ASUS did y putting 2 cpu fan headers on the 990FX boards
it is cool
but i think they were aiming it at people than have twin-fan tower coolers - so that no splitter needs to be used
S_I_N
New member
aye I agree there but it has opened up other avenues as well for its usage
