Screamer
Screamer is an HP Omen 45L gaming tower owned by the INTERTIA Lab, housed in Michael’s office in the Drexel College of Computing and Informatics.
Specs
- CPU
- Intel i9 14900K (8 performance cores, 16 efficiency cores, 3.2GHz base, 6 GHz turbo, liquid cooled)
- Memory
- 64 GiB
- GPU
- NVidia GeForce RTX 4090 (24GB)
- Storage
- 2TB SSD for software and in-use experiment data; 16TB (usable) RAID1 spinning disk for archival
- Operating system
- Ubuntu 24.04 (Noble Numbat)
- Idle power draw
- 81 watts
Power Measurement
Chassis power consumption for Screamer is measured with an APC Back-UPS NS 1500M2, using (LOADPCT / 100) * NOMPOWER. This is not the most precise measurement (1% increments of the system’s nominal 900W output power), but is relatively stable. It is also generally consistent with other measurements we have taken.
Prior to May 2025, chassis power was measured with a Shelly Wave Plug US. This proved to have too many stability problems (random power-downs) to be a viable long-term measurement solution.
CPU power is measured by the Intel RAPL power model exposed through the Linux powercap interface. GPU power is measured with NVML’s reported GPU power consumption.