Fan speed monitor for multiple fans

[Raptorsys]

I just finsinhed putting together a new PC using a Thermaltake V2000A case and Thermaltake 480W PS to power a Gigabyte GA-8KNXP MB with 3.0GHZ/800MHz FSB P4 and 1GB of Corsair 1024 3200LLPT DDR RAM. The case alone has 7 fans (4 input with filters and 3 output), the PS has 2 fans, the CPU has the factory fan, the MB has the northbridge fan, and the ATI AIW 9700 Pro video board has a fan. So that's 12 fans total!

Now I hooked up the case fans to the HardCano 4 channel fan controller and I taped the temp sensor to the top of the PS to display the temp of the PS. I plugged the fan monitor for the PS into the MB as well the the CPU fan so that the MB can monitor these values. But, and here's the question, is there a way to monitor the case fan speeds from the MB? The problem here is two fold: first, the case fans are all 2-wire, and seconds, there's 7 of them!

BTW, since my PC runs OK with memory timings of 2-3-3-6 (would not run OK at 2-2-2-6) I've lowered my CPU core voltage to 1.40VDC versus 1.55VDC and the result is that the CPU temp with stock coolers is running at about 35C at idle versus about 44C at 1.55VDC (free air temp in case about 25C at this time). I used Artic silver between the CPU and cooler.

Thanks,

 

[svol]

No, if they don't have 3 wires you wont be able to monitor the RPM. And even then the motherboard often can only monitor 3 fans.

My CPU fan spins so fast that it creates a wormhole 😱

 

[Raptorsys]

That's pretty much what I thought...

Next question --- is it possible to daisy chain more than one fan (3 wire) while controling and monitoring the speed?

Thanks,

 

[svol]

Well controlling yes as long as the fan controller can handle the power output of the fans, but parallel setup is beter because fans also have resistance which in a serie setup would mean that they share voltage and don't run at the specified 12V.

But combining RPM signals of mutliple fans isn't possible, but you should still be able to read the RPM signal of one fan.

My CPU fan spins so fast that it creates a wormhole 😱