On 1 Dec 2004 09:43:56, Paul Koning <pkoning(a)equallogic.com> commented: Unless there are passives (like terminators) between +5V and GND, 10 ohms is a little low. 0.5 amps represents a minimum current that the board will pull. An ohmmeter will not normally cause the silicon to conduct and hence be counted in the total resistance. Some chips do have internal dividers, but the they are nomally in the 10K + range. I normally use a current limited supply at the required voltage and set the limit so that it starts to limit. I then use a 5 digit voltmeter to trace where the current is going. This is done by placing one probe on the +5V input and then measuring the drop as you trace out the distribution path. The path drawing the current will continually drop while non-drawing paths will remain at a constant voltage drop. On multi-layer boards you measure drops to the Vcc pins of the bugs and map the drop. CRC