Chapter 1: Introduction
1-5
A1SAi & A1SRi Series Motherboard Jumpers
Jumper Description Default
JBT1 CMOS Clear Off (Normal)
JI
2
C1/JI
2
C2 SMB to PCI-Exp. Slots Off (Disabled)
JPG1 VGA Enable Pins 1-2 (Enabled)
JPL1 Ethernet LAN Ports Enable Pins 1-2 (Enabled)
JWD1 Watch Dog Enable Pins 1-2 (Reset)
A1SAi & A1SRi Series Motherboard Headers/Connectors
Connector Description
Battery Onboard Battery (JBAT1)
COM1/COM2 COM1/COM2 Port Headers
FAN1-FAN3 CPU/System Cooling Fans
J1* 4-pin 12V DC Power Connector (to provide alternative power to embedded
devices such as SC101i, when the 24-pin ATX power is not in use)
J3 4-pin Power Connector for HDD use (to provide power from the motherboard
to onboard HDD devices)
JD1 Power LED/Speaker Header(Pins 1-3: Power LED, Pins 6-7: Internal
Buzzer, Pins 4-7: External Speaker)
JF1 Front Panel Control Header
JIPMB1 4-pin External SMbus I
2
C Header (for an IPMI Card)
JL1 Chassis Intrusion Header
JOH1 Overheat LED Header
JPI
2
C1 Power Supply System Management Bus (SMBus) I
2
C Header
JPK1 LAN3/LAN4 LED Indication Header
JPW1* 24-pin ATX Power Connector
JSD1 SATA DOM (Device_On_Module) Power Connector
JTPM1 Trusted Platform Module (TPM)/Port 80 Connector
JUID1 Unit Identier (UID) Switch
LAN1/LAN3, LAN2/LAN4 Gigabit Ethernet (RJ45) Ports
PCI-E Slot PCI-E 2.0 x 8 Slot
I-SATA0-I-SATA5 (Intel) Serial ATA Ports 0-5
SP1 Internal Speaker/Buzzer
USB 2.0 0/1 Backpanel USB 2.0 Ports 0/1
USB 3.0 0/1 Backpanel USB 3.0 Ports 0/1
USB 3.0 2,3 USB 3.0 Front Access Support (USB 3.0 2/3: Header/Type A Connector)
VGA Backpanel VGA Port
(*Do not use the 4-pin DC power @J1 when the 24-pin ATX Power @JPW1 is connected to the
power supply. Do not plug in both J1 and JPW1 at the same time.)
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