Motherboard compatibility is determined by chipset and available slots as well as form factor.
The Compaq Presario 5240 desktop PC is no longer manufactured. Produced by Compaq in 1998, it was sold as a high-end computer with newly introduced hardware such as AMD's then new AMD K6 3D processor.
Motherboard Size
Any motherboard will work in the Compaq Presario 5240 as long as it is the right form-factor, advanced technology extended (ATX). Motherboards come in different shapes and sizes designed to fit within the confines of various size computer towers. The Presario 5240 contains an ATX form factor motherboard and is designed to fit this size motherboard.
Component Compatibility
If you only want to upgrade the motherboard and want the existing components within the Compaq Presario 5240 to be compatible with it, a specific motherboard must be used. Use a Socket 7 motherboard to remain compatible with the existing processor, and make sure it has an accelerated graphics port (AGP) slot for the stock video card. Integrated device electronics (IDE) slots will be necessary for the hard drive.
Motherboard Compatibility
To make sure there are no basic input/output system (BIOS) conflicts and a motherboard will function in the Compaq Presario 5240, reformat your hard drive before upgrading the motherboard.
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