Acer AN515-57-577G JDIMM1 socket not working.

[warsztat]

Hello, Acer AN515-57-577G JDIMM1 socket does not work. GH51G LA-L181P, 2x DDR4 RAM, both good, both work well in JDIMM2, neither works in JDIMM1. The laptop displays BIOS, when the JDIMM2 socket is occupied, you can run Linux on USB, then everything seems to work ok, there is internet access and you can browse the contents of the 512 GB SSD in Windows, but starting Windows ends with an eternal spinning circle, maybe there are corrupted files. When the RAM is inserted into the JDIMM1 socket, the laptop starts but there is no image and the downloaded current does not change and the output is ~2.25A. The laptop was flooded with liquid (I do not know what), which can be seen on the bottom of the lower casing, but I did not notice any traces on the board, maybe I am blind and do not see it, so I am attaching a scan of the board, maybe someone will notice it. The flooding occurred from the battery side and I think the liquid did not reach the motherboard, maybe the RAM chip in the JDIMM2 socket, which works fine. The only thing I can think of is probably BIOS corruption, but is that possible?

Link to schematic - https://www.badcaps.net/forum/troubl...v-1c-boardview

[mcplslg123]

This is not a bios issue. You need to check soldering of jdimm1 socket,may replace the ram IC and if all fails then either some track is corroded in ram section or your SOC has dry ball joints.

[warsztat]

The colleague only confirms my suspicions, I assume that after spilling something the device could have been moved violently, maybe even dropped, and then the cracked balls under the SOC appeared.

Thank you.