It is pin 6 that has 5Vdc as long as the console is connected to AC power. Installation of a modchip on a 1.6 should have the LPC installed pin header's pins 4 and 6 removed. V.16 Xbox consoles have 5Vdc standby instead of 3.3Vdc as on all previous revisions. You need to power the modchip using an alternate switched 5Vdc source. Team Xecuter suggests using the right-hand pin of the device at location U6A1.