ACHME COMPUTER, INC. MS-4132G VLB 486 SI3G Processor 80486SX/80487SX/80486SX-SL/80486DX/80486DX-SL Processor Speed 25/33/40/50MHz Chip Set SIS Max. Onboard DRAM32MB Cache 128/256KB BIOS Phoenix Dimensions 254mm x 218mm I/O Options 32-Bit VESA local bus slots (3) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Internal keyboard CN1 Power saving switch JG3 connector External battery JB 32-Bit VESA local S1 bus slot Green Function JC7 32-Bit VESA local S2 bus slot Monitor power control JG1 32-Bit VESA local S3 bus slot Green PC LED JG2 PIN OUT CONFIGURATION Connector JFP Keylock pins 1 & 2 closed Power LED pins 3 & 5 closed Turbo LED pins 12 & 13 closed Turbo switch pins 15, 16, & 17 closed Reset pins 19 & 20 closed Speaker pins 7, 8, 9, & 10 closed USER CONFIGURABLE SETTINGS Function Jumper Position » CPU PQFP not installed JC1 Closed CPU PQFP installed JC1 Open » Monitor type select monochrome JP1 Open Monitor type select color JP1 Closed » Factory configured - do not JP4A pins 1 & 2 alter closed » Factory configured - do not JP16 N/A alter » Normal VL-bus card installed JP23 Open Special VL-bus card installed JP23 Closed CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 128KB (4) 32K x 8 NONE (1) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JS1 JS2 128KB pins 1 & 2 closed pins 1 & 2 closed 256KB pins 2 & 3 closed pins 2 & 3 closed CPU TYPE CONFIGURATION Type JC2 JC3 JC4 JC5 JC6 JC8 JC9 80486SX Open pins 2 & 3 N/A N/A Open Closed Closed 80486SX-SL pins 2 & 3 pins 2 & 3 pins 1 & 2 pins 1 & 2 Open Closed Closed 80487SX Open 1 & 2, 3 & 4 N/A N/A pins 1 & 2 Open Open 80486DX Open 1 & 2, 3 & 4 N/A N/A pins 2 & 3 Open Open 80486DX-SL pins 2 & 3 1 & 2, 3 & 4 pins 1 & 2 pins 1 & 2 pins 2 & 3 Closed Closed Note: Pins designated should be in the closed position. VESA WAIT STATE/BUS SPEED CONFIGURATION Speed Wait states JP8 JP9 < 33MHz 0 wait states Open Open >33MHz 1 wait state Closed Closed CPU SPEED CONFIGURATION Speed JK1 JK2 JK3 JK4 25MHz Open Open Closed pins 2 & 3 closed 33MHz Closed Open Open pins 2 & 3 closed 40MHz Closed Closed Open pins 2 & 3 closed 50MHz Open Closed Open pins 1 & 2 closed DRAM BANK AND JUMPER CONFIGURATION Size Bank 0 Bank 1 Bank 2 JM1 JM2 JM3 4MB (1) 256KB (1) 512KB NONE 1 & 2 N/A N/A x 36 DS x 36 4MB (1) 256K x (1) 512KB (4) 256K 1 & 2 4 & 5 1 & 2 36 x 36 x 9 4MB (1) 512KB (1) 512KB NONE 2 & 3 N/A N/A x 36 x 36 4MB (1) 1M x NONE NONE N/A N/A N/A 36 4MB NONE NONE (4) 1M x N/A N/A 2 & 3 9 8MB (1) 256KB (1) 512KB (4) 1M x 1 & 2 1 & 2 1 & 2 x 36 DS x 36 9 8MB (1) 256KB (1) 1M x NONE 1 & 2 N/A N/A x 36 DS 36 8MB (1) 256KB NONE (4) 1M x N/A 2 & 3 1 & 2 x 36 DS 9 8MB (1) 1M x (1) 1M x NONE 2 & 3 N/A N/A 36 36 8MB (1) 1M x NONE (4) 1M x N/A 4 & 5 1 & 2 36 9 8MB (1) 1M x NONE NONE N/A N/A N/A 36 DS 12MB (1) 256KB (1) 1M x (4) 1M x 1 & 2 1 & 2 1 & 2 x 36 DS 36 9 12MB (1) 1M x (1) 1M x (4) 1M x 1 & 2 4 & 5 1 & 2 36 36 9 16MB (1) 1M x (1) 1M x (4) 1M x 1 & 2 1 & 2 1 & 2 36 DS 36 9 16MB (1) 1M x (1) 1M x NONE 1 & 2 1 & 2 1 & 2 36 DS 36 DS 16MB (1) 4M x NONE NONE N/A N/A N/A 36 16MB NONE NONE (4) 4M x N/A N/A 2 & 3 9 20MB (1) 2M x (1) 2M x (4) 4M x 2 & 3 2 & 3 1 & 2 36 36 9 24MB (1) 2M x (1) 4M x (4) 4M x 1 & 2 1 & 2 1 & 2 36 DS 36 9 32MB (1) 4M x (1) 4M x NONE 2 & 3 N/A N/A 36 36 64MB (1) 4M x (1) 4M x NONE 1 & 2 1 & 2 1 & 2 36 DS 36 DS 64MB (1) 4M x (1) 4M x (4) 4M x 1 & 2 1 & 2 1 & 2 36 DS 36 9 Note:Pins designated should be in the closed position.