DIY A-100 kit running very hot – idea's?

Hi,

I've bought me some new modules, and in total i have 12 now. I've noticed that the PSU from the A100 gets abnormally hot (as in, cant touch the heatsink anymore).

I've calculated my current draw on modulargrid here, and i draw the following:
742 mA +12V | 286 mA -12V | 41 mA 5V

The Doepfer PSU can take 1200mA +12V and 1200mA -12V, so room to spare there. I dont know what the deal is with the +5v, could that be something i'm missing?

Thanks!
Mathieu

Take out modules 1 by 1, let the PSU heat up, see if there's any difference. Maybe one is faulty?

Do you have a multimeter?

You better measure actual current in your system, and then compare it to the calculated value. You can do that by plugging a multimeter between PSU and bus board.