Tested Cyrix Cx486DRx2 20/40GP 386-to-486 upgrade For Sale
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Tested Cyrix Cx486DRx2 20/40GP 386-to-486 upgrade
Price: US $280.00
Tested and in perfect working condition Cyrix CX486DRx2 20/40Mhz. This CPU can be used to upgrade a 386DX system to 486 class performance and adds a few 486 specific instructions. It also doubles the CPU frequency from 20MHz to 40MHz. It can be used as a replacement in 386DX-16 and 386DX-20 systems. It will come with software on a floppy disk that enables the 486 functionality (cache and cache coherence).
