Browse Prior Art Database

Variable I/O expansion slots

IP.com Disclosure Number: IPCOM000013886D
Original Publication Date: 2000-Jun-01
Included in the Prior Art Database: 2003-Jun-19

Publishing Venue

IBM

Abstract

Industry standard uATX motherboards have 4 PCI slots. Industry standard ATX motherboards have 6 PCI slots. Two different motherboards are required if an OEM wants to offer both ATX 6 slot systems and uATX 4 slot systems. The following implementation allows one industry standard uATX motherboard to be used either as a 4 PCI slot or 6 PCI slot system with different mechanicals. This implementation has the following advantages: 1) One motherboard vs. two: Saves inventory dollars and allows more flexible manufacturing (can match build to customer demand much later in cycle). 2) Lower development cost