It's a different world now with GPU and AI performance, so I strongly doubt Cheyenne will ever boot again. Somewhat sad that they're doing such a nice job of de-installing the machine, labeling all the cables etc. 5PF is just not impressive these days. A single Nvidia card will do more than that in FP8 I think which is probably good enough for AI training, and something like 100PF in FP4 for inference. At worst it's a small handful of Nvidia cards to completely replace that monster.
It has 8,064 commodity CPUs, "E5-2697v4 (18-core, 2.3 GHz base frequency, Turbo up to 3.6GHz, 145W TDP)" which may still sell new (NOS?) for up to $2K each (though it's probably questionable whether the total future market amounts to anything close to 8K units), and 300TB of standard DDR4 ECC memory. That's probably what people are bidding on. The rest of it is likely getting melted. And it's something like 42 racks of stuff. But tune in for the exciting auction finish at 4PM Pacific. Auction will continue until 10 minutes elapses without a bid I believe.