RAM pins configuration details
RAM pins configuration details
Typically it doesn't display this information on the motherboard or RAM, so you'll need to locate a PDF or similar document detailing all the DDR3 pins and their functions. I've been trying, but it's become quite challenging to find.
I'll keep searching for it; you'll need it to make the repair. A small amount of solder at the top will reconnect the finger to the circuit, and you'll need a very thin layer of adhesive on the back to secure it in place. Since the solder spot is so tiny, it's best someone familiar handles it rather than attempting yourself. It's really difficult to damage a circuit trace.
We discussed pinouts, but it seems they're hard to locate for DDR3 DIMMs.
Refer to the datasheet linked above for details. It appears pin 2 relates to VSS ground, but the exact position on the back board isn't clear from the table. You may match it with DQ4 or another VSS pin such as 122 or 239. You're likely in good shape.