aragonx@xxxxxxxxxx wrote: > Okay so this is way off topic but I need some help. I tried doing a > Google search but I don't know enough to get my query right. > > I have several external components that I would like to come on when my > computer comes on. I would also like them to go off when my computer goes > off. Some sort of electronic switch that I could plug in to one of my > PC's spare 4 pin power plugs work work fine. > > To make things a little more complicated (and Linux related) I would also > like this. I have a water cooling system with a variable voltage water > pump. It would be nice if I could simply poll lmsensors and have a > program bump up the voltage until the CPU is below a certain temperature. > > Does anyone know where I should start? I don't mind wiring up something > myself as long as I know what components I should be looking at. > > Thanks for the help in advance. > > For switching AC from your 12VDC output, you may find something like: http://www.allelectronics.com/make-a-store/item/SSRLY-42/40-AMP-SOLID-STATE-RELAY/1.html For your cooling setup, you may want to look at a D-to-A converter driving a power transistor. You will have to search for the current products - it has been a while sense I have looked into them. Mikkel -- Do not meddle in the affairs of dragons, for thou art crunchy and taste good with Ketchup!
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