Appendix A
Jumper and Connector Summary
CPU Type and Frequency
CPU Freq. JP2 JP3
Intel Pentium (P54C)
75 MHz 1-2, 3-4 3-4 1-2, 3-4, 5-6 Open 1-2, 3-4
90 MHz 1-2, 3-4 3-4 1-2, 3-4, 5-6 Open 1-2
100 MHz 1-2, 3-4 3-4 1-2, 3-4, 5-6 Open 3-4
120 MHz 3-4, 5-6 3-4 1-2, 3-4, 5-6 Open 1-2
133 MHz 3-4, 5-6* 3-4 1-2, 3-4, 5-6 Open 3-4*
150 MHz 5-6, 7-8 3-4 1-2, 3-4, 5-6 Open 1-2
166 MHz 5-6, 7-8 3-4 1-2, 3-4, 5-6 Open 3-4
200 MHz 1-2, 7-8 3-4 1-2, 3-4, 5-6 Open 3-4
Intel Pentium (P55C)
150 MHz 5-6, 7-8 7-8 Open 1-2, 3-4 1-2
166 MHz 5-6, 7-8 7-8 Open 1-2, 3-4 3-4
200 MHz 1-2, 7-8 7-8 Open 1-2, 3-4 3-4
Cyrix 6x86
120+ Open 1-2 1-2, 3-4, 5-6 Open 1-2, 3-4
133+ Open 1-2 1-2, 3-4, 5-6 Open Open
150+ Open 1-2 1-2, 3-4, 5-6 Open 1-2
AMD K5
PR75 1-2 3-4 1-2, 3-4, 5-6 Open 1-2, 3-4
PR90 1-2 3-4 1-2, 3-4, 5-6 Open 1-2
PR100 1-2 3-4 1-2, 3-4, 5-6 Open 3-4
+
JP4 JP5 JP8
+
Refer to the CPU voltage jumper settings
* Default setting
A-1
Jumper and Connector Summary
CPU Core Voltage
Core Voltage JP3
3.52V 1-2
3.43V 3-4 *
2.9V 5-6
2.8V 7-8
2.7V 9-10
2.5V 11-12
VI/O Voltage
Core Voltage JP6
#
3.52V 3-4
3.45V 1-2 *
ATX Power Supply
Power JP1
Off 1-2
On 3-4 *
Cache Size
Size JP7
256 KB 1-2 *
512 KB 3-4
* Default setting
#
This jumper is preset by the manufacturer to 1-2. We recommend you NOT to
change the setting.
A-2
Cache Module Type
Type JP16
Module without Tag 1-2
Module with Tag 2-3 *
Super I/O Controller
Super I/O Controller JP12
Jumper and Connector Summary
SMC669 Enabled
PS/2 Mouse
Enabled Closed *
Disabled Open
Keyboard Clock
Clock JP15
ISA clock 1-2 *
12 MHz 3-4
1-2 *
Disabled
Function JP14
2-3
* Default setting
A-3
Jumper and Connector Summary
CMOS
Function JP9
Normal 1-2 *
Clear CMOS 2-3
Onboard Connectors
Connector Function
CN1 COM1 connector
CN2 Power connector
CN3 ATX power connector
CN4 PS/2 keyboard connector
CN5 Two-pin fan connector
CN6 Floppy drive connector
CN7 PS/2 mouse connector
CN8 Printer/parallel port
CN9 IDE2 connector
CN10 IDE1 connector
CN11 COM2 port
CN12 IR connector (optional)
CN13 HDD LED connector
CN14 USB connector (optional)
CN15 Multifunction connector
JP13 Reserved for manufacturer use
* Default setting
A-4
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