HARDWARE INSTALLATION
16
2.13 Power Connectors (20-pin PWR1, 4-pin PWR2, 6-pin PWR3)
First, make sure you have a power supply designed for Pentium 4. This power supply must have
three connectors: PWR1, PWR2, PWR3. Then make sure you plug the ATX 12V power supply
connectors into PWR1, PWR2 and PWR3 properly. The pin definition is shown below.
Transcend
Power Connectors
P W R 2
P W R 3
G N D
+ 3 . 3 V
+ 5 V
G N D
+ 1 2 V
P W R 1
PSON# : Power Supply on
Power Good
+3.3V
+3.3V
GND
+5.0V
GND
+5.0V
GND
+5.0V Standby
+12.0V
+3.3V
-12.0V
GND
PSON#
-5.0V
+5.0V
+5.0V
GND
GND
GND
NOTE: Make sure that your ATX power supply can support at least 720mA +5V
standby power for the Advanced Configuration and Power Interface (ACPI)
functions.
Transcend Information, Inc.
