I read that Chinese found a way to upgrade DRAM on GPUs, for example, making RTX 2080 Ti with 22 Gb DRAM, or RTX 4090 with 48 Gb. The modded cards are better (by price and RAM size) than the new ones manufactured by NVIDIA, although some say they are not reliable.
replyRemember when people thought that board level repairs were a perfectly normal thing for repair shops to do?
replyI am so glad that people like Louis Rossmann[1], Electronics Repair School[2], NorthridgeFix[3] and countless others have worked to change that perception.
replyChip-level repair SHOULD be the norm.
China has been the master at this stuff for a while with institutes like Wantong Training School, Shenzhen etc.
It is a real shame that much of this knowledge is either on Chinese or Russian Internet forums or buried in obscure and unsearchable YouTube videos.
[1]: https://www.youtube.com/channel/UCl2mFZoRqjw_ELax4Yisf6w
Yep. BGA SSD and RAM chips can often be changed, sometimes offering more capacity than was officially available.
replyOne can also DIY such mods/repairs but it requires some extra equipment and supplies.
DIY'ing this is something I would never trust myself with. There are people who do this day in and day out and I would trust them with it.
replySearching for "bga soldered ram chip change laptop" on YouTube returns like thousands of results of people doing this.
Although I now realize how skewed my perception of microsoldering and other such skills because such skills seem to be extremely niche in the west.