Well, after the initial failure to start, I was messing around with the pins3 and tape and whatnot, but I never connected the SAS cable to the HBA after that.
I will return the cable I bought from Amazon (that would be a pain in the arse with shipping, but it's still worth it) and buy one with molex connectors instead of SATA, because I don't like to connect several cables together.
But seriously, why the hell isn't there a cable with SATA connectors with that damn pin3 disabled or something?
Molex should have been dead for 15 years at least by now.