This means they are now caught in a mad scramble to source all sorts of stuff, including RAM, potentially as a matter of life and death.
What's less clear to me, though, is whether datacenter builders will be able to make good on these purchase agreements. It seems these projects have every opportunity to fail, and the path to success keeps getting narrower. What are the odds that chip manufacturers ultimately get caught holding a bag of chips that nobody can buy in one hand, and a bag of IOUs from bankrupt customers in the other?