Just wanted to report my initial findings with the Z9 I received today.
The default hash board clock is 500MHz. Every 10% increase in clock resulted in a 10% increase in average hashrate and a 10% increase in DC power consumption on the hashboards. Each one is around 6A at 500MHz and 9A at 750MHz. The controller runs around 0.5A but varies a bit.
I noticed other Z9s on luckpool. Some are hashing a fair bit faster than mine. I wonder if they have exceeded the clocks in the drop down box to achieve it.
This one gets over 17k consistently