What is often true of very high-density GPU racks?
Why C is the answer
They may need liquid cooling
Heat from dense racks can exceed what air can remove.
In detail
- Heat from dense racks can exceed what air removes.
- Check the facility's limits early.
Use case
An illustrative scenario, not a real incident.
Air can no longer remove the heat from a dense rack, so a site plans liquid cooling.
See it in different ways
flowchart LR A["GPU rack density"] --> B["Power per rack"] B --> C["Heat to remove"] C --> D["Air or liquid cooling"] D --> E["Floor and facility check"]
stateDiagram-v2 [*] --> Power Power --> Cooling: heat follows power Cooling --> Floor: weight limits Floor --> Delivery Delivery --> [*]
flowchart TD
Q{"Can air remove the heat?"}
Q -->|"Yes"| A0["Air cooling"]
Q -->|"No"| A1["Liquid cooling"]Key point: Dense racks may need liquid cooling.
Why the other options are wrong
- A. They run fine with no airflow at all
- They need strong cooling.
- B. They need no special floor or power planning
- They need careful planning.
- D. They always need less power than CPU racks
- They need more power.