Peak 555A User's Guide
Switches and Connectors
2-13
Vcore Voltage
S1.1
S1.2
S1. 3
S1.4
S1.5
S1.6
1.9V
OFF
OFF
OFF
OFF
OFF
OFF
2.2V
ON
OFF
OFF
OFF
OFF
OFF
*2.8V
*OFF
*ON
*OFF
*OFF
*OFF
*OFF
2.9V
OFF
OFF
ON
OFF
OFF
OFF
3.2V
OFF
OFF
OFF
ON
OFF
OFF
3.3V
OFF
OFF
OFF
OFF
ON
OFF
.45V
OFF
OFF
OFF
OFF
OFF
ON
V I/O
S1.7
*3.3V
*OFF
3.45V
ON
CPU VIO
S1.8
S1.9
3.45V
OFF
OFF
*3.3V
*ON
*OFF
2.5V
OFF
ON
Standby Power
S1.10
On
When AT power
Off
When ATX power
J2: FAN Power
1
12V
2
FAN sensor
3
GND
J4: 5V Power input
1
5V
2
5V
3
GND
4
GND
J3: Standby By Power input/ATX power control pin
1
SB 5V
2
Power on
3
GND