Orange LED Fan Spin Off (Xbox Original)

a common fault is if your xbox turns on, instantly flashing orange, with fan spin 100% (sometimes with turning off and repeating 3 times, if you also have a frag issue underlying this) this is an early failure of the pic chip and nvidia southbridge chip not liking something about the system this can include several things including a bad pic chip, nvidia chip, bad cpu/cpu, corrupt eeprom or temperature sensors adm1032 temperature sensor this is very often the adm1032 temperature sensor (an so 8 package ic) near the clock capacitor often damaged from a leaking clock capacitor, so not communicating with the southbridge nvidia chip above it the temperature sensor receives 3 3v when powered on the d+ and d pins (temperature reading) have both an internal temperature sensor in the ic, and an external that goes to the cpu the d+ and d lines have the capacitor c6f2 connected to them, and then go off to the cpu bga pins the !alert and !therm have no connections and no pull up resistors so are always 0v the sclk and sdat go straight to the nvidia southbridge (mcpx x3) if you are getting a flashing orange led and full fan spin, and sometimes turning off after 3 surges, sometimes staying on, it is likely a bad adm1032 trace damage to the capacitors c6f1 or c6f2 bad traces between the southbridge and the sclk and sdat pins broken traces from d+ or d to the cpu pins actual bad cpu that is dead so reports bad temperature