The infamous Cyrix CX486DRX2 the perfect upgrade for 386 based computers. This clock doubles internally from the system bus speed. If you have a 20mhz system it can run at 40Mhz. This has been tested working Requires Cyrix software which I can provide a link to on the internet. EBay doesn’t allow me to post. Fantastic little chip. All pins straight and fully functioning.
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