User Manual

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A1SAi & A1SRi Series Motherboard User’s Manual

A. Backpanel USB 2.0 #0

B. Backpanel USB 2.0 #1

C. Backpanel USB 3.0 #0

D. Backpanel USB 3.0 #1

E. USB 3.0 #2 (Internal Header - One

Port Available)

F. USB 3.0 #3 (Type A)

Universal Serial Bus (USB)

Two Universal Serial Bus 2.0 ports (0/1) and two USB 3.0 ports (0/1) are located

on the I/O back panel. The motherboard also has two onboard USB3.0 connections

(USB2/3) to provide additional USB support. USB 3.0 port 2 is from an internal

header, while USB 3.0 port 3 is a Type A connector. (USB cables are not included

in the shipment.) See the tables below for pin denitions.

Back Panel USB-2.0 #0/1

Pin Denitions

Pin# Denition Pin# Denition

1 +5V 5 +5V

2 USB_PN1 6 USB_PN0

3 USB_PP1 7 USB_PP0

4 Ground 8 Ground

Internal USB-3.0 2

Pin Denitions

Pin# Signal Description

1 VBus Power

2 IntA_P1__SSRX- USB3 ICC Port1 SuperSpeed Rx-

3 IntA_P1__SSRX+ USB3 ICC Port1 SuperSpeed Rx+

4 Ground Ground

5 IntA_P1__SSTX- USB3 ICC Port1 SuperSpeed Tx-

6 IntA_P1__SSTX+ USB3 ICC Port1 SuperSpeed Tx+

7 Ground Ground

8 IntA_P1__D- USB3 ICC Port1 D- (USB2 Signal D-)

9 IntA_P1__D+ USB3 ICC Port1 D- (USB2 Signal D2+)

10 Ground Ground

11-19 NC (Not Connected) NC (Not Connected)

Battery

JD1

FAN1

FAN2

FAN3

I-SATA4

I-SATA5

JPI2C1

JPW1

JSD1

JTPM1

VGA

LED8

LED3

LED7

JBT1

JOH1

JL1

JI2C1

JI2C2

JPK1

JWD1

JPG1

JIPMB1

COM2

COM1

JF1

USB 3.0-2

LAN3/4 LED

LAN2/LAN4

LAN1/LAN3

USB2.0-0/1

USB3.0-0/1

USB 3.0-3

IPMI_LAN

PCI-E 2.0 X8

DIMMA1

DIMMA2

DIMMB2

DIMMB1

I-SATA0

A1SAi/A1SRi Series Motherboard

Rev. 1.00

FP CTRL

JPL1

BIOS

Marvell

PHY

BMC

Bar Code

JUIDB1

CPU

SP1

I-SATA2

I-SATA3

I-SATA1

LED2