HP Compaq dc7800 Base Model Convertible Minitower PC. Processor clock speed: 1.6 GHz, Processor front side bus: 800; 1066; 1333 MHz. Maximum internal memory: 8 800 MHz DDR2 SDRAM. Chassis type: Convertible Minitower. Width: 177.80 mm, Depth: 452.12 mm, Height: 447.80 mm. Certification: ENERGY STAR® qualified, EPEAT® Gold and 80% efficient power supply configurations available