Tyan S1572 ATX User Manual
10
S1572-001-01 http://www.tyan.com
BIOS Voltage Select: JP2 (Default is 5V)
BIOS 5V
BIOS 12V
JP2
1-2
2-3
J8 Jumper Block:
Desc.
PIN#
Soft Power
1-2
Ext SMI
3-4
IR1
8-11
Pri HDD LED 13-14
Sec HDD LED 15-16
PWR LED
Sec HDD LED 15-16
PWR LED
18-20
Reset SW
22-23
Speaker
24-27
CPU Select: Default P54C, P55C(MMX), & Cyrix
These jumpers need not be changed. The system
will auto-detect your CPU type.
will auto-detect your CPU type.
P54C,
P55C(MMX)
Cyrix
P55C(MMX)
Cyrix
JP11
Off
JP12
Off
JP13
On
CMOS Reset: JP1(Default Battery On)
Battery On
CMOS Reset
1-2
2-3
To reset CMOS, jumper JP1 on pins 2-3 for two
seconds, then jumper it back to pins 1-2.
seconds, then jumper it back to pins 1-2.