Biostar TA990FXE Setup Manual page 13

ATXPWR1: ATX Power Source Connector
This connector allows user to connect 24-pin power connector on the ATX
power supply.
Pin Assignment
13 +3.3V
14 -12V
15 Ground
16 PS_ON
17 Ground
18 Ground
19 Ground
20 NC
21 +5V
22 +5V
23 +5V
24 Ground
Note:
Before you power on the system, please make sure that both ATXPWR1 and ATXPWR2
connectors have been plugged-in.
PCI1/PCI2: Peripheral Component Interconnect Slots
PCI stands for Peripheral Component Interconnect, and it is a bus standard for
expansion cards. This PCI slot is designated as 32 bits.
1 2 2 4
1 13
Pin Assignment
1 +3.3V
2 +3.3V
3 Ground
4 +5V
5 Ground
6 +5V
7 Ground
8 PW_OK
9 Standby Voltage+5V
10 +12V
11 +12V
12 +3.3V
PCI1
PCI2
TA990FXE
11