Only a buzzing noise after YLOD fix?
So, I am attempting to fix a YLOD 4 usb port ps3 (CECHA or CHECHA) of a friend... unfortunatly, now, after plugging it in and switching the main power button to the 'on' position, I only hear a quiet high buzzing coming from the power source on top. There are no LEDs going off and there is no response to the buttons whatsoever.
Things to know: I do not have some top parts to the PS3 such as the blue ray optical drive (but that shouldn't matter, it used to still kinda work before)
It used to be a motherboard problem (the fans used to go on)
I followed the YLOD repair guide.
Aw man, did I mess up the MB?
I told him I may not be able to fix it... but I still feel bad screwing something up.
So, how do I fix this?
Is this a good question?