Billet Labs has built a steampunk-style gaming PC that operates without any fans. The custom system uses a passive water cooling method to manage heat from its internal components. Three separate heat sinks circulate coolant through thermal differences alone, eliminating the need for a pump or active airflow.
Three heat sinks circulate coolant through thermal differences alone
The build features an AMD Ryzen 7 9800X3D processor paired with an Nvidia GeForce RTX 5080 graphics card. The motherboard is a Gigabyte Aorus Pro B850 unit mounted on an 8mm aluminum plate with thermal pads. The system includes 32 GB of RAM, a 2 TB SSD, and a 600 watt power supply.
Spec comparison
| Spec | CPU | GPU |
|---|---|---|
| Cooling Method | Passive water cooling system with three heat sinks, no fan | N/A |
| Idle Coolant Temp | 28 °C | over 55 °C in Cyberpunk 2077 |
Performance testing shows the passive cooling method handles significant loads without throttling. The coolant temperature sits at 28 degrees Celsius during idle conditions. Under full CPU load from Cinebench, the coolant reaches 39 degrees Celsius while the processor hits 90 degrees Celsius without performance loss. Running Cyberpunk 2077 pushes the coolant above 55 degrees Celsius with stable frame rates.
The complete system costs 1299 USD (about $1,299). Some observers note that these operating temperatures exceed recommended thresholds for long-term component health. Billet Labs has not confirmed a commercial release date or retail availability for this custom build.
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