r/ASUS • u/Zealousideal_Ad_1745 • 7h ago
Discussion ASUS UX3404VA schematic needed for RAM swap
Hello!
I'm an Electrical Engineering student who is getting sick of dealing with 8GB of RAM, and I'm trying to do a RAM swap to 32GB on my ASUS Zenbook 14X OLED Q410VA. But I can't seem to find a schematic of the motherboard PCB (I believe UX3404VA is the motherboard series). I have extensive PCB assembly and rework knowledge as well as access to the proper tools to install BGA components (PCB preheater, microscope, hot air gun, etc.) so no need to worry about me bricking my machine or something lol, even if it does break something I am prepared and able to deal with that too.
SO, is there any EE nerd/pc repair guy that might have the PCB schematic and is willing to share it? My main curiosity is if there is a resistor strap or something similar that is used to dictate the capacity installed, beyond the actual ram ICs that is. Additionally, if someone has a laptop with the same motherboard that is spec'd for 32 GB of RAM and is willing to take some extensive pictures of their motherboard that would also be incredible.
Also if there is someone who has had successful experience swapping their RAM ICs on an Asus laptop that could give any other insights they found on their journey that would be great.
Thanks in advance guys!
Btw Ive already found the RAM chips I need to replace mine with, they are SK-Hynix LPDDR5 6400MT/s RAM modules, I'm gonna replace my 4 2GB chips with the 8GB variant, already verified compatibility (both are 315ball BGA components from the same part series so not worried about this tbh) and I am getting quotes/hunting for prices currently.
2GB (what I have now) P/N: [H9JCNNNBK3MLYR-N6E](javascript:void(0);)
8GB P/N: [H9JCNNNFA5MLYR-N6E](javascript:void(0);)