Another Fan Question

[backwoodstech2]

I recently purchased an 80mm Noctua NF-A8 ULN fan for the Rock NAS case along with a Noctua 2pin to 3pin adaptor. Fan is indeed 12v.

Plugging it in I get nothing...no fan movement at all. I'm using a recent version of Armbian if that matters.

I believe I see this device under /sys/class/hwmon/hwmon4/ since is see pwm1 as well as pwm1_enable. 

Code:

cat /sys/class/hwmon/hwmon4/pwm1_enable

returns 1 

Code:

/sys/class/hwmon/hwmon4$ cat /sys/class/hwmon/hwmon4/pwm1

returns 0

Code:

echo 255 | sudo tee /sys/class/hwmon/hwmon4/pwm1

still no fan response

Code:

cat /sys/class/hwmon/hwmon4/pwm1

to verify my adjustment but this still returns 0. Fan is motionless.

At this point i'm ready to give up and connect to the boards 12v out but I have questions there.

The original cable it comes with splits to 2 different SATA connection leads, leading me to believe this is not a conventional connection? This is for the CON15 DC out header.

the Noctua includes a big 4pin adapter but I'm not confident in what to order. I also didn't see anything relevant in the Pine store for accessories. 

FYI I'm currently not running any SATA drives as I recently opted for NVMe (mostly due to availability).

any help please!!??