The ASUS B85M-F fan is always running, the light is not lit, the BIOS is brushed, the PQ804 is removed and replaced with a new one, but the fault is still the same, so the PQ801 is removed and connected to the PQ800 through a 10K resistor, and the PQ800 is replaced with a new one, and the fault returns to normal.
0.65mA should be that the CPU didn't come up. After checking, it was found that the two capacitors behind the CPU were broken. Replace two 330U capacitors, make sure that there is no error in power-on test, and the current goes up to 1.26. Turn off the machine, connect the screen, and turn on the machine.
The problem with the power supply of mine card P106 is that the 5V feedback resistor is knocked off, resulting in abnormal feedback. Then the 5V chip generates 12V, which destroys the core power supply composite tube and pex power supply chip.