
Hardware Design 2-5
+12V
GND
GND
JP13
The Power Supply (+12V) of the Pentium Pro CPU colling fan
3
1
R
J8
IrDA/ASK IR CONNECTOR:
1.IRRX
2.GND
3.IRTX
4.VCC
5.Reserve
6.VCC
7.GND
1
7
JP6
Onboard SMC's chip select
:
Open: Normal operation.(Default)
Close: Disable the Onboard SMC chip.
JP2
EPROM BIOS Select
:
1-2 for 12V Flash EPROM.
2-3 for 5V Flash EPROM.(Default)
Note:
The JP2 setting is dependent on which EPROM type is
attached.
J10
USB CONNECTOR:
1. VCC
6. VCC
2. USB P1-
7. USB P0-
3. USB P1+
8. USB P0+
4. GND
9. GND
5. NC
10. NC
I/O back pannel connector:
COM1
PS/2
Keyboard
PS/2
Mouse
parallel port
COM2
6
10
1
5