CSS LABORATORIES, INC. Little Max 386SX Processor 80386SX Processor Speed 16/20MHz Chip Set C & T Max. Onboard DRAM 16MB SRAM Cache None BIOS AMI Dimensions 334mm x 127mm I/O Options Auxiliary keyboard, IDE interface, floppy drive interface, parallel port, serial ports(2) NPU Options 80387SX [Image] CONNECTIONS Purpose Location Purpose Location Speaker J3 Hard drive access J40 LED Power LED & J4 IDE interface LED LED keylock Turbo switch J6 Floppy drive PJ1 interface Auxiliary keyboard J7A Parallel port PJ2 Reset switch J11 pins 1 & Serial port 1 PJ3 2 Turbo LED J11 pins 3 & Serial port 2 PJ4 4 Front panel J39 IDE interface PJ5 switches & LEDs USER CONFIGURABLE SETTINGS Function Jumper Position » Floppy drive interface enabled FDDEN pins 2 & 3 closed Floppy drive interface disabled FDDEN pins 1 & 2 closed » IDE interface enabled IDEEN pins 2 & 3 closed IDE interface disabled IDEEN pins 1 & 2 closed » Factory configured - do not alter J2 open » Monitor type select color J8 pins 2 & 3 closed Monitor type select monochrome J8 pins 1 & 2 closed » BIOS type select 27256 J9 pins 1 & 2 closed BIOS type select 27128 J9 pins 2 & 3 closed CPU speed select 16MHz J10 closed CPU speed select 20MHz J10 open J1 pins 2 & 3 closed » Pipeline mode enabled W1 pins 1 & 2 W2 closed pins 2 & 3 closed J1 pins 1 & 2 closed Pipeline mode disabled W1 pins 2 & 3 W2 closed pins 1 & 2 closed DRAM CONFIGURATION Size Bank 0 Bank 1 512KB (2) 256K x 9 NONE 1MB (2) 256K x 9 (2) 256K x 9 2MB (2) 1M x 9 NONE 4MB (2) 1M x 9 (2) 1M x 9 8MB (2) 4M x 9 NONE 16MB (2) 4M x 9 (2) 4M x 9 SERIAL PORT 1 CONFIGURATION COM IRQ I/O Jumper S0 S1 Interrupt Address PJ6 COM 2 IRQ3 2F8h pins 1 & pins 1 pins 2 3 & 2 & 3 COM 1 IRQ4 3F8h pins 1 & pins 2 pins 2 2 & 3 & 3 Disabled N/A N/A N/A pins 1 pins 1 & 2 & 2 SERIAL PORT 2 CONFIGURATION COM IRQ I/O Jumper S2 S3 Interrupt Address PJ6 COM 1 IRQ4 3F8h pins 2 & pins 1 pins 2 4 & 2 & 3 COM 2 IRQ3 2F8h pins 3 & pins 2 pins 2 4 & 3 & 3 Disabled N/A N/A N/A pins 1 pins 1 & 2 & 2 PARALLEL PORT 1 (PJ2) CONFIGURATION LPT IRQ Interrupt I/O Address P0 P1 PRT LPT 1 IRQ7 3F8h pins 1 pins 2 pins 2 & 2 & 3 & 3 LPT 2 IRQ5 2F8h pins 2 pins 2 pins 1 & 3 & 3 & 2 LPT 3 IRQ7 3BCh pins 2 pins 1 pins 2 & 3 & 2 & 3 Disabled N/A N/A pins 1 pins 1 N/A & 2 & 2