Controlling pwm pump without motherboard

engstrom0304 · 6 Aug 2015 at 14:18

hi,
im using an ek D5 pwm and that defaults at the minimum speed without pwm header plugged in.
Trouble is im not cooling a pc so don't have a header for the pwm

Can I use a fan controller for it? Any fan controller? And which one is cheapest that will work?

Thanks

Tim

engstrom0304 · 6 Aug 2015 at 14:55

I think so. When I touch the pump the vibration is so small it cant be full speed. It feels almost non existent

engstrom0304 · 6 Aug 2015 at 15:03

Its for cooling peltiers for Li-ion batteries.. university research group. will be running a few months only

engstrom0304 · 6 Aug 2015 at 15:03

ie. Thermoelectric cooling to control tab temperatures of batteries

engstrom0304 · 6 Aug 2015 at 15:19

so essentially its green to black?

engstrom0304 · 6 Aug 2015 at 15:23

the pump only uses the first two holes.. red and black

engstrom0304 · 6 Aug 2015 at 15:23

and its worth saying im running from a 12v source. no 5v

engstrom0304 · 6 Aug 2015 at 15:32

ok well in that case I need to find a 5v supply as my power supply is only 12v and 2 of the molex pins in the connector are empty.

engstrom0304 · 6 Aug 2015 at 15:38

But im not using a PC power supply. Im just using a 12v supply with no 5v rail. I couls get 5v from a usb charger?

engstrom0304 · 6 Aug 2015 at 15:38

or I could just find a PC power supply.