Just acquired this powersupply. My psu has a jumper between A1, B1 and B6 (PS_KILL, GND to PS_ON) and a switch between B2 and B6 (PWM and PS_ON). With the switch off the miner boots but doesn't mine. When on the powersupply is extremely loud and the miner starts to work.

The jumper should have been enough for the PSU to power on?

I've got the feeling it's not wired optimally for low noise...

Yes... I realize i'm bumping an old topic