Maybe a stupid question but...
Whenever I load something with the core it crashes to HBM, if I try again it crashes the whole switch.
My process:
Home>Load Core>Mupen64Plus
Home>Load Content>[rom].z64
UPDATE: I'm using a piece of a SATA Cable (there's a tutorial on this forum but I'm a new member and can't post links) and I'm sure the pins are shorted correctly. It still isn't working!
I'm holding Vol+ and Power and it boots to the Nintendo logo.