Well I got the Delta Fans up and running - special thanks to Tom and Dogie and everyone for their help!
Only oddity is that the fan is not communicating with the miner dashboard - it just shows 0 speed.
My temps look ok '55-59' And from what it seems the fan is just going full speed.
I'm clocked at 387.5 and getting 1260ghash.
I clocked it up to 400 and ran it for a few hours with no issues; but decided better safe than sorry. 425 Crashed a Blade and had to reboot.
Any thoughts on why I'm not getting fan speeds? I tried reversing the two wires - but then the fan didnt work at all.
Thanks again!
Strato
P.S. The Delta Fans are about 1/2 the noise level - so much better! Kind of sounds like a small space heater on high-- as opposed to a small shop vac.
It appears that your control lines are reversed. I know you have all black wires but I will include the color code for reference. Looking from the front of the unit left to right, the pinout is Signal from controller (BLU), RPM Signal from fan (WHT), 12+ (RED), and GND (BLK). Try swapping the first two pins and you should see the RPM and obtain fan control.
EDIT: There is the possibility you just have a loose connection as well.