I think I connected my multimeter correctly, I put it between the FTDI cable and the terminal on the side, and I ended up measuring ~70mA with the SIO and CPU cards. I tried out the other combinations and got 80mA with the Front Panel connected and 56mA with
all cards connected.
Unless I made a mistake connecting it looks like its low instead of high. I did find out however that if I have the Front Panel connected and I hit the reset buttons (F and 0) on there the SD card LEDs will flash. So that's something at least.