剛才找到算瓦數的網站算了一下
System Type: Quad Processor
Motherboard: High End - Desktop
CPU: Intel Core 2 Quad Q9300 2500 MHz Yorkfield-6M
CPU Utilization (TDP): 85% TDP

RAM: 2 Sticks DDR3 SDRAM
Video Card: ATI Radeon HD 4850
Video Type: Crossfire

SATA HDD: 1 HDD

Blu-Ray Internal Drive: 1 Drive
DVD-RW/DVD+RW Drive: 1 Drive

USB: 1 Device
Fan Controller: Yes
Front Bay LCD Display: Yes

Fans
Regular: 2 Fans 120mm;
High Performance: 1 Fan 120mm;

Cold Cathodes: 1 Cathode

Keyboard and mouse: Yes

System Load: 90 %



Recommended Wattage: 637 Watts

這樣的話不就七百瓦的power才夠用了