Someone Electro said:
That was an typo! LOL I meant heatsink by that.
But you should check your componets if it gets to 60 °C inside the case then there is most probobly somthing going over 70 °C and thats not good.
Actually, my comp temps are GREAT during run, and thats the prob, My "Meatsinks" keep the CPUs at about 40° C During Power On, but once the fans sotp running the ambient temp insode the case Skyrockets cuz the sinks keep sinking the heat off the CPUs but the fans no longer are running to keep the air inside the case moving over them and out the back. (also, I've been considering Liquid cooling, but when I priced a liquid cooler setup for my specific need it was almost $300, a bit more than I'm willing to spend at the moment)
And yeah I know its a complex design, but i want control, and one thing ive learned is that the more you try to control something the more complex the system becomes, its a trade off, I could just use a POT and 555 but I dont want a "Dumb" circuit, I want something that can think and make decisions.
Also, on the "Meatsink" typo, I once was a Meatsink. I wasnt thinking about what I was doing, I had just replaced an Intel P3 chip and powered the machin eon without replacing the heatsink, I started smelling cooking chip and without thinking I placed my hand on the chip, I had the CPU Code info branded on my palm for a few weeks. damn things get HOT FAST! (if only my girl was like that...)
I've been thinking about the whole project, and I think I need to break it down into sections.
The questions I need answers to are:
What chip do I use to for the "brain"?
How Do I interface with this chip and USB?
How Do I count the pulses from the fans to determine the RPM speed, Pulses Per Minute or Milliseconds Between Pulses?(Pros and Cons of each?)
How do I alter Fan speed, Should I Regulate Fan Voltage, or Should I Modulate the 12v Feed?
How do I monitor ambient temp, I want to use 2 themocouples one for case ambient temp, and one for the exaust temp at the back of the case, I know I need an a/d converter but how do I use it?