I would think your hash rate of the unit is not the same as the pool due to the hardware errors,
only accepted good shares, stale, orphaned, duplicate would be used to calculate your hash rate
over a period of time.
I have my unit running at 555Mhs @ freq 425 stock volatage and want to see how much I can turn
it down and get the least power draw. Anyone dial back yet on a overclocked unit?
I'm running at 462, underclocked at 0xd0 getting 595MH (due to HW errors) at 870W, compared to stock freq/voltage I get 830W
I have 4 running at 462M now with HW errors <0.08%.
In conclusion, a few things were done to try and keep HW errors < 0.08%
Individual boards with high HW @ 462 gets an overvolt at 0x78 or 70.
Boards with average HW gets a 1-2 step undervolt 0x88, 0x90
Good boards gets more undervolting. I have one that throws 1HW in 10 mins at 0xb0