I used one when modding my cube(which did not work and eventually killed my cube). The modchip destroyed my cube and I am pretty pissed, the multimeter is a very handy tool though, it helped me a lot when I was actually thinking I could get the chip working. Anyway, set the multimeter to 200k resistance and check any parts you might be thinking have fried. I used that setting to check for make sure my solder points were good or not. Should also work to check if each joint still flows current in it.
