The i487SX (P23N) was marketed as a floating point unit coprocessor for Intel i486SX machines. It actually contained a full-blown i486DX implementation. When installed into an i486SX system, the i487 disabled the main CPU and took over all CPU operations. The i487 took measures to detect the presence of an i486SX and would not function without the original CPU in place.
- Dictionary.com (ed.). "Intel 487SX". Retrieved 2012-08-02.
|This computer hardware article is a stub. You can help Wikipedia by expanding it.|