TMC RESEARCH CORPORATION MAT48PX (EISA) Processor 80486SX/80487SX/80486DX Processor Speed 16/20/25/33/50MHz Chip Set OPTI Max. Onboard DRAM 256MB Cache 64/128/256/512KB BIOS AMI Dimensions 350mm x 304mm I/O Options None NPU Options 4167 [Image] CONNECTIONS Purpose Location Purpose Location IDE LED out J4 Reset switch J5 pins 9 & 19 Speaker J5 pins 1 - 4 IDE LED in J5 pins 10 & 20 Turbo switch J5 pins 7 & Power LED & J5 pins 11 - 15 17 keylock Turbo LED J5 pins 8 & 18 USER CONFIGURABLE SETTINGS Function Jumper Position » Monitor type select color JP5 Closed Monitor type select monochrome JP5 Open DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 4MB (4) 1M x 9 NONE NONE NONE 8MB (4) 1M x 9 (4) 1M x 9 NONE NONE 12MB (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 NONE 16MB (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE NONE NONE 20MB (4) 4M x 9 (4) 1M x 9 NONE NONE 24MB (4) 1M x 9 (4) 1M x 9 (4) 4M x 9 NONE 28MB (4) 1M x 9 (4) 1M x 9 (4) 4M x 9 (4) 1M x 9 32MB (4) 4M x 9 (4) 4M x 9 NONE NONE 36MB (4) 4M x 9 (4) 4M x 9 (4) 1M x 9 NONE 40MB (4) 4M x 9 (4) 4M x 9 (4) 1M x 9 (4) 1M x 9 48MB (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 NONE 52MB (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 (4) 1M x 9 64MB (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 64MB (4) 16M x 9 NONE NONE NONE 128MB (4) 16M x 9 (4) 16M x 9 NONE NONE 192MB (4) 16M x 9 (4) 16M x 9 (4) 16M x 9 NONE 256MB (4) 16M x 9 (4) 16M x 9 (4) 16M x 9 (4) 16M x 9 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG (U37) TAG (U38) TAG (U55) 64KB (4) 8K x (4) 8K x (1) 8K x 8 (1) 16K x (1) 16K x 8 8 1 1 128KB (4) 32K x NONE (1) 8K x 8 (1) 16K x (1) 16K x 8 1 1 256KB (4) 32K x (4) 32K (1) 32K x (1) 16K x (1) 16K x 8 x 8 8 1 1 512KB (4) 128K NONE (1) 32K x (1) 64K x (1) 64K x x 8 8 1 1 Notes: If DRAM is £ 32MB, all cache sizes may be installed; if DRAM is > 32MB and £ 64MB, 128, 256, or 512KB cache must be installed; if DRAM is > 64MB and £ 128MB, 256 or 512KB cache must be installed; if DRAM is > 128MB, 512KB cache must be installed. CACHE JUMPER CONFIGURATION Size RNA1 & RNA2 RNB1 & RNB2 RNC1 & RNC2 RND1 & RND2 64KB Installed Not installed Not installed Not installed 128KB Not installed Installed Not installed Not installed 256KB Not installed Not installed Installed Not installed 512KB Not installed Not installed Not installed Installed CPU TYPE CONFIGURATION Type JP1 JP2 JP3 JP4 80486SX-16MHz pins 2 & 3 pins 1 & 2 pins 1 & 2 pins 2 & 3 closed closed closed closed 80486SX-20MHz pins 2 & 3 pins 1 & 2 pins 1 & 2 pins 2 & 3 closed closed closed closed 80486SX-25MHz pins 1 & 2 pins 1 & 2 pins 1 & 2 pins 2 & 3 closed closed closed 80487SX-16MHz pins 2 & 3 pins 1 & 2 pins 1 & 2 pins 2 & 3 closed closed closed closed 80487SX-20MHz pins 2 & 3 pins 1 & 2 pins 1 & 2 pins 2 & 3 closed closed closed closed 80487SX-25MHz pins 1 & 2 pins 1 & 2 pins 1 & 2 pins 2 & 3 closed closed closed closed 80486DX-25MHz pins 1 & 2 pins 1 & 2 pins 1 & 2 pins 2 & 3 closed closed closed closed 80486DX-33MHz pins 1 & 2 pins 1 & 2 pins 2 & 3 pins 2 & 3 closed closed closed closed 80486DX-50MHz pins 1 & 2 pins 1 & 2 pins 2 & 3 pins 1 & 2 closed closed closed closed CPU TYPE CONFIGURATION Type RNA3 RNB3 RNC3 80486SX-16MHz Not installed Not installed Installed 80486SX-20MHz Not installed Not installed Installed 80486SX-25MHz Not installed Not installed Installed 80487SX-16MHz Not installed Not installed Not installed 80487SX-20MHz Not installed Installed Not installed 80487SX-25MHz Not installed Installed Not installed 80486DX-25MHz Installed Not installed Not installed 80486DX-33MHz Installed Not installed Not installed 80486DX-50MHz Installed Not installed Not installed