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S
UPERMICR
R
a1sa
& a1sr
s
m
I
I
erIes
otherboard
Q
r
g
uICk
eferenCe
uIde
Motherboard Layout and Features
JUIDB1
VGA
BMC
LAN1/LAN3
LAN2/LAN4
Marvell
PHY
JI2C1
A1SAi/A1SRi Series Motherboard
Rev. 1.00
JI2C2
Battery
JWD1
JF1
1
J3
SP1
The SO-DIMM Socket
Installing the SO-DIMM Memory Module
1. Align the key on the bottom of the SO-DIMM module against the receptive point
on the memory socket. Take note of the notches on the side of the SO-DIMM
module, and of the locking clips on the socket to avoid causing damage.
2. Install the SO-DIMM module straight down into the socket until it is securely
seated in the socket. The side clips will automatically lock the module into place.
Module Notch
1
2
3
Module Key
Socket Key
Side Clip
Removing the SO-DIMM Memory Module
Use your thumbs to gently push the side clips near
both ends away from the module to release it from
the socket. Once the module is loosened from the
socket, pull the SO-DIMM module upwards.
Side Clip
C
I
ontaCt
nformatIon
• Website: http://www.supermicro.com (Email: support@supermicro.com)
• Manuals: http://www.supermicro.com/support/manuals
• Drivers & Utilities: ftp://ftp.supermicro.com
• Safety: http://www.supermicro.com/about/policies/safety_information.cfm
USB2.0-0/1
COM1
USB3.0-0/1
IPMI_LAN
BIOS
JBT1
CPU
FAN3
FAN1
= mounting hole
Front Panel Control (JF1)
20
19
Ground
NMI
X
X
3.3 V
FP PWRLED
3.3V Stby
HDD LED
NIC1 Link LED
3.3V Stby
3.3V Stby
NIC2 Link LED
OH/Fan Fail/PWR Fail/
UID LED Cathode
LED Cathode
Power Fail LED
3.3V
Reset
Reset Button
Ground
Power Button
Ground
PWR
2
1
• One (1) Supermicro Motherboard
• Six (6) SATA Cables
• One (1) I/O Shield
Jumpers, Connectors and LED Indicators
Jumpers
A1SAi & A1SRi Jumpers
Jumper
Description
JBT1
CMOS Clear
Off (Normal)
JI
C1/JI
C2
SMB to PCI-Exp. Slots
Off (Disabled)
2
2
JPG1
VGA Enable
Pins 1-2 (Enabled)
JPL1
Ethernet LAN Ports Enable
Pins 1-2 (Enabled)
JWD1
Watch Dog Enable
Pins 1-2 (Reset), Pins 2-3 (NMI)
Connectors
A1SAi & A1SRi 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 embed-
ded 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 moth-
erboard 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
C Header (for an IPMI Card)
2
JL1
Chassis Intrusion Header
JOH1
Overheat LED Header
JPI2C1
Power Supply System Management Bus (SMBus) I
JPK1
LAN3/LAN4 LED Indication Header
JPW1*
24-pin ATX Main Power Connector (Required)
JSD1
SATA DOM (Device-On-Module) Power Connector
JTPM1
Trusted Platform Module (TPM)/Port 80 Connector
JUIDB1
Unit Identifier (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 (SATA 0/1: SATA 3.0, SATA 2-5: SATA 2.0)
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
Front Panel Accessible USB 3.0 Headers 2, 3
VGA
Backpanel VGA Port
(*Do not use the 4-pin DC power @J1 when the 24-pin ATX Power @JWP1 is connected
to the power supply. Do not plug in both J1 and JPW1 at the same time.)
LED Indicators
A1SAi & A1SRi LED Indicators
LED
Description
Color/State
Status
LED2
BMC Heartbeat LED
Green: Blinking
BMC: Normal
LED3
Power LED
Green: On
System PWR On
LED7
UID Switch LED
Blue: On
Unit Identified
Solid On: Overheat,
LED8
Overheat/PWR Fail/Fan Fail LED
Red: Solid on/Blinking
Blinking: PWR Fail or Fan Fail
P
C
aCkage
ontents
Memory Support
The A1SAi & A1SRi supports up to 32GB of Unbuffered DDR3 ECC SO-DIMM
1600/1333 MHz (1.35V/1.5V) memory in 4 slots.
Note:
Be sure to use memory modules of the same type, same speed, and
Default
same frequency on the same motherboard. Mixing of memory modules of
different types and speeds is not allowed.
SO-DIMM Memory Configuration
Memory Population Guidelines
Please follow the table below when populating the A1SAi & A1SRi Series mother-
board.
Unbuffered DDR3 ECC SO-DIMM Memory
DIMM Slots per
DIMMs Populat-
DIMM Type
Channel
ed per Channel
2
1*
DDR3 SO-DIMM
2
2
DDR3 SO-DIMM
*Be sure to populate Slot DIMMA1 and Slot DIMMB1 for one DIMM per channel memory support.
DIMMA1
DIMMA2
CPU
DIMMB2
C Header
2
DIMMB1
How to Install SO-DIMM Modules
1. Install the desired number of SO-DIMMs into the memory slots, starting with
DIMMA1, then DIMMB1, then DIMMA2, then DIMMB2. Pay attention to the notch
along the bottom of the module to prevent incorrect DIMM module installation.
2. Insert each SO-DIMM module vertically and snap it into place. Repeat step 1 until
you complete the memory installation. See more information on the SO-DIMM
socket to the left of this QRG.
Back Panel I/O Connectors
D
J
H
F
C
A
E
G
I
B
Notes:
1. Graphics shown in this quick reference guide are for illustration only. Your components may or may not look exactly
the same as drawings shown in this guide.
2. Refer to Chapter 1 of the User Manual for detailed information on jumpers, connectors,
3. Refer to Chapter 2 of the User Manual for detailed information on memory support and CPU/motherboard installation
instructions.
POR Speeds
Memory Population
Sequence
Unbuffered
1600,1333
A1, B1 (2 DIMMs)
Unbuffered
1600,1333
A1, B1, A2, B2
(4 DIMMs)
DIMMA1
DIMMA2
Towards the CPU
Towards the CPU
DIMMB2
DIMMB1
Backplane I/O Panel
A. COM1
G. LAN1
B. USB Port 2.0-0
H. LAN3
C. USB Port 2.0-1
I. LAN2
D. IPMI LAN
J. LAN4
E. USB Port 3.0-0
K. VGA
F. USB Port 3.0-1
K
and LED indicators.
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