The SSD disappeared on the ultrabook and the BIOS does not see the USB device, the south bridge?

Question

laptops

Filled with beech tea, asus b400v.
After wiping with alcohol, it seemed to start up, but after 5 minutes it fell into a blue screen, the SSD drive disappeared (hanging on mSATA)
Also, the BIOS does not see any external devices via usb. however, he sees a normal HDD via SATA ...
How so? what could be the reason?

Answer 1

Причина в чае.
Где-то окислились контакты или ножки, коротнули или до сих пор коротят. Могли даже сгореть отдельные чипы, типа контроллера USB, раз он перестал быть виден.

Answer 2

There were quite strong oxides in this place, as I understand it, this is just mSATA power