To copy my comment on the beehaw.org post, because they and lemmy.world aren’t federated:

This deal may make matters worse for more buyers, because PSMC used the Tongluo site to make legacy DRAM products – the kind of memory used in less advanced products. With the company now exiting the legacy chip biz, that memory will also become more scarce, giving the laws of supply and demand another moment in which to work their way on markets.

https://www.dqindia.com/esdm/microns-acquisition-of-psmcs-tongluo-fab-could-lift-global-dram-supply-outlook-in-2027-11012307

PSMC’s current DRAM capacity mainly relies on 25nm and 38nm nodes, which restricts DDR4 production to lower-density products.

I guess that that’s more DDR4 supply drying up. It’s going to be some very scarce years for memory until enough new production comes online.

EDIT:

https://tech.yahoo.com/computing/articles/amd-ryzen-chief-teases-return-201223682.html

AMD Ryzen chief teases return of older Zen 3 chips to fight soaring RAM prices — ‘That’s something we’re actively working on right now’

Restarting production of DDR4-capable hardware isn’t going to help nearly as much if nobody is producing DDR4. I guess that there’s still DDR4 memory to scavenge from existing computers.

EDIT2:

https://www.tweaktown.com/news/109702/as-ram-crisis-intensifies-ddr3-motherboards-are-making-an-improbable-comeback/index.html

As RAM crisis intensifies, DDR3 motherboards are making an improbable comeback

Here’s one way to avoid paying an absolute fortune for RAM - forget DDR5 or even DDR4 memory, switch back to DDR3, as some folks are doing in China.

Now I regret throwing out the DDR3 memory that I have in the past.