PINE TECHNOLOGY PT-428 Processor 80486SX/80486DX/80486DX2 Processor Speed 25/33/40/50(internal)/50/66(internal)MHz Chip Set UMC Max. Onboard DRAM32MB Cache 32/64/128/256KB BIOS AMI Dimensions 250mm x 220mm I/O Options 32-bit VESA local bus slots (3) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location External battery J1 Speaker J5 Reset switch J2 Power LED & J6 keylock Turbo switch J3 32-bit VESA Local SL1,SL2 & SL3 bus slots Turbo LED J4 USER CONFIGURABLE SETTINGS Function Jumper Position » Battery type select - internal JP1 Closed Battery type select - internal JP1 Open » Power good signal detect from JP2 pins 1 & 2 power supply closed Power good signal detect from JP2 pins 2 & 3 board closed » VGA card select - normal JP3 pins 1 & 2 closed VGA card select - POWER 9000 JP3 pins 2 & 3 closed » CPU test logic enabled JP6 Open CPU test logic disabled JP6 Closed » (MCA1) LDEV# direct connect to JP7 pins 1 & 2 491 ELBA# closed LDEV# through and gate to 491 JP7 pins 2 & 3 ELBA# closed » CPU speed select < 33MHz JP11 Open CPU speed select > 33MHz JP11 Closed DRAM CONFIGURATION Size Bank 0 Bank 1 1MB (4) 256K x 9 NONE 2MB (4) 256K x 9 (4) 256K x 9 4MB (4) 1M x 9 NONE 5MB (4) 1M x 9 (4) 256K x 9 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE 20MB (4) 1M x 9 (4) 4M x 9 32MB (4) 4M x 9 (4) 4M x 9 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 32KB (4) 8K x 8 NONE (1) 8K x 8 64KB (4) 8K x 8 (4) 8K x 8 (1) 8K x 8 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 JP12 JP13 JP14 JP15 JP16 32MB Open 2 & 3 Open Open Open 64KB Open 1 & 2 Open Closed Open 128KB 2 & 3 2 & 3 Open Closed Closed 256KB 1 & 2 1 & 2 Closed Closed Closed Note: pins designated should be in the closed position. CPU TYPE CONFIGURATION CPU Type J17 J18 80486SX pins 2 & 3 closed Open 80486DX/DX2 pins 1, 2, 3 & 4 pins 1 & 2 closed closed Pentium Overdrive pins 1, 2, 3 & 4 pins 2 & 3 closed closed CPU SPEED CONFIGURATION (CHRONTEL CH9007C CLOCK) Speed JP8 JP9 25MHz pins 1 & 2 closed pins 1 & 2 closed 33MHz pins 2 & 3 closed pins 1 & 2 closed 40MHz pins 1 & 2 closed pins 2 & 3 closed 50iMHz pins 1 & 2 closed pins 1 & 2 closed 50MHz pins 2 & 3 closed pins 2 & 3 closed 66iMHz pins 2 & 3 closed pins 1 & 2 closed CPU SPEED CONFIGURATION (PHASE LINE PLL52C05) Speed JP8 JP9 JP21 25MHz pins 1 & 2 pins 1 & 2 Closed closed closed 33MHz pins 2 & 3 pins 1 & 2 Closed closed closed 40MHz pins 1 & 2 pins 2 & 3 Open closed closed 50iMHz pins 1 & 2 pins 1 & 2 Closed closed closed 50MHz pins 2 & 3 pins 2 & 3 Open closed closed 66iMHz pins 2 & 3 pins 1 & 2 Closed closed closed VESA ID4 CONFIGURATION 50MHz delay JP4 JP5 No delay pins 1 & 2 closed pins 1 & 2 closed 1 - T pins 2 & 3 closed pins 2 & 3 closed