Pulled my Blast PSU this morning and checked solder joints on the power board. Everything looks OK, but I reflowed everything around the connectors. I also used contact cleaner on the cable connectors and inspected the cables for breaks, missing insulation, etc. Everything looks good. Put it back together and I get 3.7v on the 3.3v rail when powered on, but when the Naomi + NetDimm are plugged in, the 3.3v rail still drops to 2.9v and I get a black screen (yes, the 3.3v pot on the PDU is turned all the way up). I plugged in my ATX PSU just to make sure my Naomi didn't get raptured over night, and everything works great with the ATX PSU. So yeah, something in my Blast PSU is keeping it from delivering the juice needed. Again, your mileage may vary!