Quote from: nc50lc on September 15, 2019, 10:42:47 AM

The AC cooling isn't much of a concern since the Data center and AC units must be active as we speak.
For the Electric consumption, it will definitely rise as all of the idle CPU cores will become active when mining.

Quote from: globbiz on September 14, 2019, 09:20:38 PM

256 RH2288H V2 (with)
2 Intel Xeon E5-2660 V2 (each)
-snip-

Depending on the OS installed (namely, Linux and Windows), you can mine CPU-optimized coins (Monero as suggested by phil) using those servers since Intel Xeon E5-2660 is a quite powerful CPU.
But in terms of power cost per performance, you're on the losing side.

The GPGPU nodes' Nvidia tesla K20x are a bit outdated for today's standards either,
However, mainstream AltCoins like Ethereum mainly uses the Memory for the DAG file and that GPU has 6GB of memory.
The main problem is its power consumption of: 235W TDP
That's double (or more) than the power consumption of the recommended GPUs for ETH mining.

TL;DR: The GPU nodes won't be profitable, the CPUs might break even or profit depending on the power cost.

The problem with the Tesla K20x are not the power consumption its that those types of GPUs are not optimized for ETH type of mining. I am not sure what hashrate the K20x would get but the K80 gets like 14MH/s. This was verified by many people who rented some AWS and got them running. Basically totally unprofitable since its half the hashrate of a RX 470 which you can buy second hand now for like $70. Now I couldn't find a hashrate for the K20x but I am assuming it will be either identical to the K80 or will be a little slower.

Basically it all boils down to how much they pay for electricity, if they got some fixed low rate then it might be worth it when the GPUs are sitting idle.