HP ENVY 17 Motherboard Short help please

[harshana]

Re: HP ENVY 17 Motherboard Short help please

It was already said many times that the PCH, among a bunch of other components, is dead.

Okay. then I will need to replace the mainboard. Thanks for the support

[harshana]

Re: HP ENVY 17 Motherboard Short help please

I was able to find similar motherboard. So I started this project again. What I noticed in this new Motherboard is bios chip is missing and also some paths damaged. So I soldered my old bios chip and also I fixed the paths as well. I was able to verify all the damaged paths using boardview file. BIOS chip paths are okay now.

Now when I connect power adapter nothing happens but when I power up using my DC power Supply, It turns on.Fan is spinning and power LED also turn on. (but AC Adapter LED not working) after 30 seconds It suddenly turn off and power up again within 2-3 seconds. I notice this happen every 30 seconds.

Not only that, When I test CAPSLED# signal I see its blinking 3 times. (normaly the value is high and it goes to 0 three times. after a delay again three times)

Whats wrong with this? I tested memory modules also. I can confirm they are working.

Help me please

[harshana]

Re: HP ENVY 17 Motherboard Short help please

Finally I was able to fix this by flashing bios. ��. Thank you everyone