Technical Support FX504G DABKLGMB8D0 REV D

[afonso]

HI can someone help:

First, board no power, mosfet ic short
after replace mosfet CPU, MB turn on, have all voltages: 3,3v ,5v, 1,05 chipset, 1,2v memory, graphic etc, but no image
so, when i turn on, i have voltage on cpu, and after past 3 min. this voltage desapear.

what i do for to try repair this mb?

Thanks,

 

[Ahmad Safari]

Hello
Which MOSFET was burnt?
Are the voltages normal now?
It is possible that the system has an image delay. Be sure to wait 5 minutes and check the amount of current and voltage of the board.
Did you program the BIOS?
Did you service and replace the RAMs?

 

[afonso]

Sorry I made a mistake with another equipment, there was a shorted capacitor and the track damaged in the 5v line of the mosfet driver isl95808 of the cpu. all voltages are fine, but after 1 or 2 minutes the cpu voltage goes to 0 and the others stay the same. already replaced ram and bios. any sugest?

 

[Ahmad Safari]

Did you replace the right capacitor?
If you have an oscilloscope, check that the voltage does not fluctuate.