IMC-2001 Power and PSU

Power connector on the motherboard:

+-------------+
| O O O O O O |
+-------------|
  | | | | | +--- GND   black
  | | | | +----- +12V  red
  | | | +------- -5V   blue
  | | +--------- -12V  brown
  | +----------- +5V   white
  +------------- +5V   white

Old PSU:

New PSU replacing the old crusty one (this is a standard replacement PSU for Apple ][ from Reactive Micro):