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slicey · 03-12-2005, 05:58 PM

hello, i need these for my MCP-350 and two 24V fans from hell to put in my
W/C rad box. the pump unit needs to supply enough current plus a little
overhead for two 350 pumps. 2.5amps perhaps? the unit for the fans needs
to supply about 3.5amps at most. the combined draw from both fans is
3.4amps @ 24V. there's no way i'll run them that high though. curious,
what is the appropriate type of supply to be using, ie. PWM, LINEAR, or
SWITCHING? iv'e read PWM supplies are bad for RPM sensing fans i think. to
keep costs down, i would be thrilled if there was two different DIY fan
bus solutions that can provide the respective voltage/current needed.
because i found a 24V, 6.5A power supply(SWITCHING i think) at
allelectronics.com for cheap. then all i would need to do is build the two
different circuits for my pumps and fans i really need your help
guys/girls. links to electronics kits houses would be great. any help
would be greatly appreciated!
slicey
PS i have only the one MPC350 but want a variable PSU source that could
handle two for expansion options.

03-12-2005, 05:58 PM	#1
slicey Cooling Neophyte Join Date: Feb 2005 Location: payson,az Posts: 21	2 variable PSUs for fan and pump needed hello, i need these for my MCP-350 and two 24V fans from hell to put in my W/C rad box. the pump unit needs to supply enough current plus a little overhead for two 350 pumps. 2.5amps perhaps? the unit for the fans needs to supply about 3.5amps at most. the combined draw from both fans is 3.4amps @ 24V. there's no way i'll run them that high though. curious, what is the appropriate type of supply to be using, ie. PWM, LINEAR, or SWITCHING? iv'e read PWM supplies are bad for RPM sensing fans i think. to keep costs down, i would be thrilled if there was two different DIY fan bus solutions that can provide the respective voltage/current needed. because i found a 24V, 6.5A power supply(SWITCHING i think) at allelectronics.com for cheap. then all i would need to do is build the two different circuits for my pumps and fans i really need your help guys/girls. links to electronics kits houses would be great. any help would be greatly appreciated! slicey PS i have only the one MPC350 but want a variable PSU source that could handle two for expansion options.