This is my first post and I am asking for some help regarding Asus A8SN-CF mobo part of HP IQ775 touchsmart desktop. This computer does power on, but no video on display, no BIOS splash, all fan running on high speed. Can be turn off by press and hold power button for more than 3 sec. I removed the power cord and hold the power button for 30sec to drain the system. As soon the power cord was plug-in the computer starts with same blank display.
The next step I removed the cover and I noticed on the motherboard 3 swollen capacitors- United Chemi-con KGZ-820uF/ 6.3V (near CPU and video card) and I did replaced only those one with new same capacity value …but same results.
Question: what is the easiest way to verify which is defective … do I have to replace all of them?
I am aware even I will change all capacitors still have the same problems !
The next step I removed the cover and I noticed on the motherboard 3 swollen capacitors- United Chemi-con KGZ-820uF/ 6.3V (near CPU and video card) and I did replaced only those one with new same capacity value …but same results.
Question: what is the easiest way to verify which is defective … do I have to replace all of them?
I am aware even I will change all capacitors still have the same problems !
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