MICRONICS COMPUTERS, INC. 486/25 Processor 80486DX Processor Speed 25MHz Chip Set Micronics Max. Onboard DRAM 16MB Cache 64/128/256KB BIOS Phoenix Dimensions 355mm x 304mm I/O Options None NPU Options 4167 [Image] CONNECTIONS Purpose Location Purpose Location External battery J2 Reset switch W4 Speaker J22 Turbo LED W5 Power LED & keylock J23 Turbo switch W6 USER CONFIGURABLE SETTINGS Function Jumper/Switch Position » Internal cache enabled SW1/1 On Internal cache disabled SW1/1 Off » On board BIOS enabled SW1/2 Off External BIOS enabled SW1/2 On » Factory configured - do not SW1/3 On alter » External cache enabled SW1/4 On External cache disabled SW1/4 Off » BIOS relocation disabled SW1/5 Off BIOS relocation enabled SW1/5 On » Factory configured - do not SW1/6 Off alter » Monitor type select color, SW1/7 On CGA, EGA, or VGA Monitor type select SW1/7 Off monochrome » Factory configured - do not SW1/8 Off alter » Factory configured - do not SW2/5 Off alter » D00000-EFFFFF cacheable SW2/6 Off D00000-EFFFFF non-cacheable SW2/6 On » Factory configured - do not W1 N/A alter » Factory configured - do not W2 pins 2 & 3 alter closed » Factory configured - do not W3 N/A alter Note:The exact location of W2 is unknown. DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 SW1/1 SW1/2 SW1/3 SW1/4 1MB (4)256K NONE NONE NONE On On On On x 9 2MB (4)256K (4)256K NONE NONE Off On On On x 9 x 9 3MB (4)256K (4)256K (4)256K NONE On Off On On x 9 x 9 x 9 4MB (4)256K (4)256K (4)256K (4)256K Off Off On On x 9 x 9 x 9 x 9 4MB (4)1M x NONE NONE NONE On On Off On 9 5MB (4)256K (4)1M x NONE NONE On On Off Off x 9 9 6MB (4)256K (4)256K (4)1M x NONE On Off On Off x 9 x 9 9 7MB (4)256K (4)256K (4)256K (4)1M x Off On On Off x 9 x 9 x 9 9 8MB (4)1M x (4)1M x NONE NONE Off On Off On 9 9 9MB (4)256K (4)1M x (4)1M x NONE On Off Off Off x 9 9 9 10MB (4)256K (4)256K (4)1M x (4) 1M Off Off On Off x 9 x 9 9 x 9 12MB (4)1M x (4)1M x (4)1M x NONE On Off Off On 9 9 9 13MB (4)256K (4)1M x (4)1M x (4)1M x Off Off Off Off x 9 9 9 9 16MB (4)1M x (4)1M x (4)1M x (4)1M x Off Off Off On 9 9 9 9 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 64KB (4) 8K x 8 (4) 8K x 8 (1) 32K x 8 128KB (4) 32K x 8 NONE (1) 32K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 Note:The exact location of the TAG chip is unknown. CACHE JUMPER CONFIGURATION Size SW2/7 SW2/8 W8 W9 64KB Off Off pins 1 & 2 pins 1 & 2 closed closed 128KB On On pins 2 & 3 pins 1 & 2 closed closed 256KB Off On pins 2 & 3 pins 2 & 3 closed closed