Power usage and PSU details for Xeon E5 2580 v2 are available.
Power usage and PSU details for Xeon E5 2580 v2 are available.
Run the CPU together with a GTX 550TI for the screen, using it as a continuous server around the clock. The main concern is whether a 450W power supply is sufficient. Your PSU calculators indicate maximum draw stays below 400W and suggest 400-450W is ideal. That should cover your needs. Regarding cooling, the Hyper 212 is a solid choice but consider a higher-end cooler if you anticipate heavy loads or long uptime.
Your performance under full load is 177 watts for both the E5 2650 and GTX750. It seems your configuration isn’t operating at double that level.