[HOWTO] Fix/Repair "Chassis Intruded Fatal Error System Halted" on Asus P5QL

[loli_roller]

Originally Posted by Th3_uN1Qu3

Ok that's a good pic. With the board powered ON, measure voltage at the CHASSIS jumper. Find the pin that has somewhere between 1 volt and 3.3v. Could be anything in that range.

Once you found it, turn all power OFF and unplug the power supply, and set your multimeter to beeper. One probe goes to that pin you found with the voltage on it, and with the other probe measure on the little 3-pin transistors around the Winbond chip. You should find one that beeps on the single pin at the top, which would be the collector or drain.

Return with these results and i will try to help you further.

Hi Th3_uN1Qu3, First of all thanks for posting this solution and keeping this thread alive. I have Asus m5a78l-m lx v2, i dont see any 3 pin transistors near the Super I/O Chip but there is another small chip below the super I/O chip that has those transistors.