DIP off, NumLock off, press Num_1 - 35 (0x23) E (End button on the keyboard)
DIP off, NumLock on, press Num_1 - 97 (0x61) (Numpad1)
DIP on, NumLock off, press Num_1 - 35 (0x23) (shows up as Numpad1, but still performs End function)
DIP on, NumLock on, press Num_1 - 97 (0x61) (Numpad1)
When the DIP is off, pressing the NumLock key doesn't register anything in Aquakeytest (the LED stays lit the entire though time, even though it changes on and off on the physical numpad). When it's on, it does.