阅读说明：本技术 计算机主机系统 (Computer host system ) 是由 洪文祥 杨俊波 陈钦洲 于 2020-01-08 设计创作，主要内容包括：一种计算机主机系统,包括壳体,还包括顶部扩展框与侧部扩展框中的至少一种,壳体包括前板、后板、顶板及侧板,顶板及侧板可拆卸地分别安设于前板与后板的顶部与两侧,顶部扩展框安设于前板和后板的顶部用于扩展壳体顶部的容纳空间,侧部扩展框安设于前板和后板的两侧用于扩展壳体两侧的容纳空间,顶部扩展框与壳体顶部的截面形状相同,侧部扩展框与壳体侧面的截面形状相同。(The utility model provides a computer mainframe system, which comprises a housin, still include at least one of top extension frame and lateral part extension frame, the casing includes the front bezel, the back plate, roof and curb plate detachably install the top and the both sides at front bezel and back plate respectively, the top extension frame is installed and is used for expanding the accommodation space at casing top in the top of front bezel and back plate, lateral part extension frame is installed and is used for expanding the accommodation space at casing both sides in the both sides of front bezel and back plate, the cross sectional shape at top extension frame and casing top is the same, the cross sectional shape of lateral part extension frame and casing side is the same.)