Nvidia CMP170HX driver 64GB RAM unlocking patch
github.com
github.com
With 64GB HBM2e RAM physically, it's locked down to 8GB with the fuse.
2 months ago, a paper describing security bypass w/ code execution appeared, and a driver patch released a month ago.
You could get these "3090 64GB" for $250 or so only. Now they are $700+.
What's baffling is that hardly any major English tech publisher wrote about this hack of a century!
All the info in Russian: https://habr.com/ru/news/1060032/
Recent LLM tests @ Reddit: https://old.reddit.com/r/LocalLLaMA/comments/1vlwjr8/i_teste...
It was initially assumed that the RAM is also binned and the rest of it is bad in one way or another (doesn't work on expected frequencies, flip bits, etc). On 8GB (64GB) model we haven't seen bad RAM so far. The tests are all OK. 10GB versions supposedly have 80GB of physical memory, but only 40GB is unlockable (don't know the reason).
Upgrade to PCIe 2.0 16x possible. 2.0 4x is a software unlock with a driver patch, 16x requires capacitors soldering.