The Cx486DRx2 will operate in 386DX-16, 20, 25, and 33 MHz computers that follow industry 386DX socket and BIOS standards. Cyrix has tested compatibility of the Upgrade processor in numerous computers including systems from IBM, Compaq, AST, Everex, Dell and Toshiba.
The Upgrade processor is compatible with the following systems.
ACER EVEREX NATIONAL AEI EXPO NCR AGI FIVESTAR NEC ALR FORCE NORTHGATE AMERICA GATEWAY2000 OLIVETTI AMI GOLDSTAR PANASONIC AMSTRAD GOUPIL PC BRAND ARES HAUPPAUGE RAMA AST HEWLETT RML AT&T HIQ SAMSUNG AUSTIN HYUNDAI SHEBRO BBC IBM SQUARE 1 BELTON INTEL STANDARD CITUS KAYEN SWAN CLONE KEYTRONICS SYSOREX CLUB KLH TANDY COMPAC LEADING EDGE TANGENT COMPAQ LOOP TATUNG COMPUADD MACROLAND TOSHIBA COMPUDYNE MAGITRONICS TRISTAR DATAWORLD MAGNAVOX TWC DEC METRO TWC DELL MICRO EXPRESS UNISYS DFI MICRO EXPRESS WYSE DFI MICRO SMART ZENITH DIGITRON MICRO STAR ZEOS DTK MICRONICS EPSON MULTITERM
The following list of systems and motherboards has been tested 100% compatible with the Cx486SRx2 Upgrade processor.
ACER DTK NATIONAL ALR EMERSON NCR AMERICA EPSON NEC AMIGA ERGO PC BRAND ARCHE GATEWAY2000 PHILLIPS* ARES GOLDSERIES POSITIVE PC AST GOLDSTAR PS USA AT&T HYUNDAI SAMSUNG AVANT IBM SITEK BLACKSHIP INSIGHT SYSDYNE BSR KAYEN TANDY CLONE KENITEC TANGENT CMS KLH TECH COMPAQ LASER TOSHIBA COMPUADD LEADING TECHNOLOGY WANG COMPUDYNE MAGITRONICS WESTERN DATA DATAWORLD MAGNAVOX ZENITH DELL MATRIX ZEOS DFI MSI*These systems may require a BIOS upgrade when a math coprocessor is used.