Post
Topic
Board Hardware
Re: [ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs
by
Guy Corem
on 03/02/2015, 10:09:28 UTC
Any idea what is the MAX load of the fan controller on a SP20?
3A Max, the stock fan use 1.75A and we have 6A fuse

Pinout:
1 - 12V
2 - GND
3 - TACHO (Fan output towards controller board for rotation indication)
4 - PWM (controller board output towards fan to set rotation speed)

If you mod the stock fan, you'll loose warranty of course.

Guy
Are you 100% on that? The 12V and Gnd listed are reversed from a standard fan pinout.
Regarding the pinout, yes. The SP20 fan datasheet is available here

Regarding current rating - we checked again regarding the connector UL specification. In order to meet them, the maximal current allowed is 2.5A (not 3A as I wrote earlier). Also, 24AWG wire is required to meet this current rating.

Guy