The situations are quite different though. The DRAM industry price fixing scandal came in the aftermath of them heavily scaling up production. The manufacturers had all scaled up the production so much that they couldn't sell it all. They would all have had to sell at a loss if they were to compete.
It is the complete opposite of the current situation.
Collusion is a viable strategy, regardless of the market situation. They've been shown to apply price fixing in the past; presumably they still know each other's phone numbers.
It is the complete opposite of the current situation.