What do you hook this up to on a motherboard? vrm's?
sorry for being a newbie
edit:
would this be good? http://www.ebay.co.uk/itm/Three-wire-precision-DC-digital-voltmeter-head-digital-voltmeter-DC0V-32-/321337188179?pt=UK_BOI_Electrical_Test_Measurement_Equipment_ET&var=&hash=item4ad1305f53
Or this? http://www.ebay.co.uk/itm/Digital-Voltmeter-with-Green-LED-Display-0V-to-32V-3-Wire-Version-UK-SELLER-/200981193732?pt=UK_BOI_Electrical_Test_Measurement_Equipment_ET&hash=item2ecb69a404