My two sp20 came in today (really, really fast shipment, thank you!) and running fine.

I ran it at default settings to get a feeling for it and with stock settings some ASICs reach 120c with fan at 90%. Ambient temperature is around 15c.
Trying to undervolt now to keep all ASICs at 115c max. Isn´t it possible to operate at around 1600 GH/s without overheating?