Modular logic board chassis for a desktop computer

The present invention relates to the field of desktop computers and more specifically to a chassis for a desktop computer wherein a logic board chassis is removably affixed within a computer monitor unit. The predominant current usage of the present inventive modular logic board chassis is in desktop computers for home and office use, wherein it is desirable to have a tidy and compact package while retaining serviceability and other desirable aspects of appearance and functionality. A computer () having a monitor housing () within which is affixed a logic module () having thereon a processor (), a memory module (), a fixed disk drive () and an external connector panel () all generally housed within a sheet metal housing () having therein a plurality of perforations () for allowing air from a fan assembly () to pass therethrough. A power supply () and monitor screen () are provided in the monitor housing () such that when the logic module () is mounted and electrically connected within the monitor housing () a generally complete computer () unit is provided. An auxiliary drive () is optionally provided and affixed to the logic module () such that the auxiliary drive () is externally accessible when the logic module () is affixed within the monitor housing ().