Service manual

3. BOARD UNIT/DESCRIPTION
Service Manual CNS-9701 3.1
The power supply unit accepts AC line voltages of 100 to 240 V AC. The fan in the
power supply unit automatically changes the rotation speed according to the
temperature of the power supply unit.
The motherboard has the following functions.
- CPU socket for the CPU (1 GHz Pentium 3 or 2.4 GHz Pentium 4) chip
- Floppy disk drive interface
- ATA/66M interface for hard disk drive
- Ethernet interface
- Sound drive circuit
- RS232C serial data interface (2 ports provided)
- Parallel data interface
- PCI bus (3 PCI sockets provided)
- AGP bus (Not used)
- Game control interface (Not used)
- USB interface (Not used)
Since each component on the motherboard is individually checked in the aging
test at the manufacturer, the motherboard has higher reliability than the
commercially available same model.
This box consists of the CPU chip and fan for the CPU.
Power Supply Unit (by NIPRON)
Motherboard (by A-OPEN)
CPU (1 GHz Pentium 3 or 2.4 GHz Pentium 4) Box