Motherboard Schematic diagram:
BOOK386_Motherboard_Rev0.5.pdf
Motherboard PCB Source file:
BOOK386_Motherboard_Rev0.5.rar
387 expansion board:
Overview
Processor (CPU): 386 SX (40MHz) embedded in an Ali M6117 chipset.
Math Coprocessor (FPU): 387 SX socket.(33-40Mhz only)
System Memory: 16MB DRAM.
Graphics Card: VGA Card
Display: 4:3 IPS LCD (Matte / 178° wide viewing angle).
Storage: CF Card Storage (IDE Mode).
Audio System: OPL3 Sound Card (Yamaha YMF262-M).
Network Adapter: RTL8019AS Network Adapter.
Power Supply: 18650 Lithium Battery.
USB Port: CH375B USB Controller
GamePort: IBM PC compatible game controller adapter
Serial Port: RS-232
Parallel Port : DB25 (SPP/Bi-Dir/EPP/ECP)
Floppy disk drive interface
16Bit ISA External Interface
The M6117 supports an external 387SX coprocessor clocked synchronously with the CPU.
Important Note: Because the onboard 386SX CPU runs at 40MHz, any 387SX coprocessor rated below 40MHz will be forced to overclock. Coprocessors rated at 25MHz or lower typically will not function properly.





