®
SUPER
C202
+
B
SAS826A
C44
JP25
JP84
1
B
U40
JP84:MODE
1-2:SGPIO
2-3:I2C
33
23
+
REV 1.00
D3
R6 R98
C215ALARM#1
+
9071 RST
D53
R325
D54
C
A
C
C94
A
C
A
U2
U41
C285
RP1
49
U19
1
1
11
9072 RST
Y2
JP69
UPGRADE#1
R376
C198
JP25:OH#1 TEMP
DESIGNED IN USA
OPEN:45
1-2:50
2-3:55
C
C
C
JP78
1
7
C
8
6
C
2
7
1
C
2
7
2
32
C201
C
2
0
8
R
2
2
6
R249
C85
R257
C3
Y1
+
1
+
BAR CODE
JP18
JP45
ALARM#2
+
JP37I2C#1
4
1
JP46
BUZZER RESECT138
C5
JP45:OH#2 TEMP
+
JP47
OPEN:45
1-2:50
2-3:55
C
C
C
C45
I2C#2
+
F
2
F
1
+
+
ACT_IN#8-11
C197
JP52
I2C#3
ACT_IN#0-7
BZ1
C84
+
R141
SAS-826A Backplane
USER'S GUIDE
Rev. 1.0a
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Preface
Table of Contents
Contacting Supermicro.......................................................................................iv
Returning Merchandise for Service.....................................................................v
Introduction to the SAS-826A Backplane...........................................................vi
Chapter 1 SAS-826A Safety Guidelines
1-1
1-2
1-3
ESD Safety Guidelines ................................................................................... 1-1
General Safety Guidelines.............................................................................. 1-1
An Important Note to Users............................................................................ 1-2
Chapter 2 Jumpers and Pin Definitions
2-1
Front Connectors and Jumpers ...................................................................... 2-1
Front Connectors ............................................................................................ 2-1
Front Connector and Pin Definitions............................................................... 2-2
Front Jumper Locations and Pin Definitions................................................... 2-4
Explanation of Jumpers .................................................................................. 2-4
I2C and SGPIO Modes and Jumper Settings ................................................. 2-5
Front LED Indicators....................................................................................... 2-6
Rear Connectors and LED Indicators............................................................. 2-7
2-2
2-3
2-4
iii
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SAS-826A Backplane User’s Guide
Contacting Supermicro
Headquarters
Address:
Super Micro Computer, Inc.
980 Rock Ave.
San Jose, CA 95131 U.S.A.
Tel:
+1 (408) 503-8000
Fax:
Email:
+1 (408) 503-8008
[email protected] (General Information)
Web Site:
Europe
Address:
Super Micro Computer B.V.
Het Sterrenbeeld 28, 5215 ML
's-Hertogenbosch, The Netherlands
Tel:
+31 (0) 73-6400390
Fax:
Email:
+31 (0) 73-6416525
[email protected] (General Information)
[email protected] (Customer Support)
Asia-Pacific
Address:
Super Micro Computer, Inc.
4F, No. 232-1, Liancheng Rd.
Chung-Ho 235, Taipei County
Taiwan, R.O.C.
Tel:
+886-(2) 8226-3990
+886-(2) 8226-3991
Fax:
Web Site:
Technical Support:
Email:
Tel:
+886-(2) 8226-5990
iv
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Preface
Returning Merchandise for Service
A receipt or copy of your invoice marked with the date of purchase is required be-
fore any warranty service will be rendered. You can obtain service by calling your
vendor for a Returned Merchandise Authorization (RMA) number. When returning
to the manufacturer, the RMA number should be prominently displayed on the
outside of the shipping carton, and mailed prepaid or hand-carried. Shipping and
handling charges will be applied for all orders that must be mailed when service
is complete.
micro.com/support/rma/).
Whenever possible, repack the backplane in the original Supermicro box, using the
original packaging materials. If these are no longer available, be sure to pack the
backplane in an anti-static bag and inside the box. Make sure that there is enough
packaging material surrounding the backplane so that it does not become damaged
during shipping.
This warranty only covers normal consumer use and does not cover damages in-
curred in shipping or from failure due to the alteration, misuse, abuse or improper
maintenance of products.
During the warranty period, contact your distributor first for any product problems.
v
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SAS-826A Backplane User’s Guide
Introduction to the SAS-826A Backplane
The SAS-826A backplane has been designed to utilize the most up-to-date technol-
ogy available, providing your system with reliable, high-quality performance.
This manual reflects SAS-826A Revision 1.00, the most current release available at
com for the latest updates, compatible parts and supported configurations.
vi
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Chapter 1: Safety Guidelines
Chapter 1
SAS-826A Safety Guidelines
To avoid personal injury and property damage, carefully follow all the safety steps
listed below when accessing your system or handling the components.
1-1 ESD Safety Guidelines
Electrostatic Discharge (ESD) can damage electronic components. To prevent dam-
age to your system, it is important to handle it very carefully. The following measures
are generally sufficient to protect your equipment from ESD.
•
•
Use a grounded wrist strap designed to prevent static discharge.
Touch a grounded metal object before removing a component from the antistatic
bag.
•
Handle the backplane by its edges only; do not touch its components, peripheral
chips, memory modules or gold contacts.
•
•
When handling chips or modules, avoid touching their pins.
Put the card and peripherals back into their antistatic bags when not in use.
1-2 General Safety Guidelines
•
•
•
Always disconnect power cables before installing or removing any components
from the computer, including the SAS-826A backplane.
Disconnect the power cord before installing or removing any cables from the
SAS-826A backplane.
Make sure that the SAS-826A backplane is securely and properly installed on
the motherboard to prevent damage to the system due to power shortage.
1-1
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SAS-826TQ Backplane User's Guide
1-3 An Important Note to Users
•
All images and layouts shown in this user's guide are based upon the latest PCB
Revision available at the time of publishing. The card you have received may or
may not look exactly the same as the graphics shown in this manual.
1-2
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Chapter 2: Jumpers and Pin Definitions
Chapter 2
Jumpers and Pin Definitions
2-1 Front Connectors and Jumpers
2
1
10
1
C202
+
B
SAS826A
C44
2
JP25
JP84
1
B
U40
JP84:MODE
1-2:SGPIO
2-3:I2C
33
23
+
1
REV 1.00
D3
C215ALARM#1
8
+
9071 RST
7
D4
R
6
R
9
8
9
1
A
C
1
1
C94
A
C
A
U2
U41
C285
RP1
49
U19
1
1
11
9072 RST
Y2
10
1
R376
JP69
UPGRADE#1
C198
JP25:OH#1 TEMP
A
OPEN:45
1-2:50
2-3:55
C
C
C
JP78
1
7
C
8
6
C
2
7
1
C
2
7
2
32
6
C201
1
C
2
0
8
R
2
2
6
6
1
R249
R257
C3
4
1
Y1
1
+
BAR CO
JP18
JP45
ALARM#2
+
JP37I2C#1
4
1
JP46
BUZZER RESECT138
C5
JP45:OH#2 TEMP
+
JP47
OPEN:45
1-2:50
C
C
C
C45
3
1
I2C#2
2-3:55
1
1
+
F
2
F
1
1
1
+
+
ACT_IN#8-11
C197
6
1
JP52
I2C#3
ACT_IN#0-7
BZ1
C84
+
R141
5
1
Figure 2-1: Front Connectors
Front Connectors
1. ACT_IN: JP26 and JP47
2. Chips: MG9071 and MG9072
3. I2C Connector #1: JP37
4. I2C Connector #2: JP95
5. I2C Connector #3: JP52
6. Power Connectors (4-pin): JP10,
JP13, and JP46
7. SAS IN #1: JSM1
8. SAS IN #2: JSM2
9. SAS IN #3: JSM3
10. Upgrade Connectors, JP69 and
JP78
2-1
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SAS-826A Backplane User's Guide
2-2 Front Connector and Pin Definitions
#1. Activity LED Headers
SAS Activity LED Header
Pin Definitions (JP26)
The activity LED headers, designated JP26
and JP47, are used to indicate the activity
status of each SAS drive. The activity LED
headers are located on the front panel. For the
activity lead headers to work properly, connect
to them using a 10-pin LED cable. This is only
used when the activity LED is not supported
by the hard drive.
Pin #
Definition
ACT IN#0
ACT IN#1
ACT IN#2
ACT IN#3
Ground
Pin #
Definition
ACT IN#4
ACT IN#5
ACT IN#6
ACT IN#7
Empty
1
2
3
4
5
6
7
8
9
10
SAS Activity LED Header
Pin Definitions (JP47)
Pin #
Definition
ACT IN#8
ACT IN#9
ACT IN#10
ACT IN#11
Ground
Pin #
Definition
ACT IN#12
ACT IN#13
ACT IN#14
ACT IN#15
Empty
1
2
3
4
5
6
7
8
9
10
#2. MG9071 and MG9072 Chips
The MG9071 and MG9072 are enclosure
management chips that support the SES-2
controller and SES-2 protocols.
#3., #4., #5. I2C Connectors
I2C Connector
Pin Definitions
(JP37, JP52,
and JP95)
The I2C Connectors, designated JP37, JP52,
and JP95, are used to monitor HDD activity
and status. See the table on the right for pin
definitions.
Pin# Definition
1
2
3
4
Data
Ground
Clock
No Connection
2-2
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Chapter 2: Jumpers and Pin Definitions
#6. Backplane Main Power Connectors
Backplane
Main Power
4-Pin Connector
The 4-pin connectors, designated JP10,
JP13, and JP46 provide power to the
backplane. See the table on the right for
pin definitions.
Pin# Definition
1
+12V
Ground
+5V
2 and 3
4
#7., #8., #9. SAS Ports
The SAS ports are used to connect the
SAS drive cables. The three connectors are
designated SAS IN #1 - SAS IN #3. Each
of the three connectors has four ports for
a total of twelve ports. These twelve ports
are designated #0 - #11 and they are also
compatible with SATA drives.
10. Upgrade Connectors
The upgrade connectors, designated JP69
and JP78, are used for manufacturer's diag-
nostic purposes only.
2-3
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SAS-826A Backplane User's Guide
2-3 Front Jumper Locations and Pin Definitions
C202
+
B
SAS826A
C44
JP25
JP84
1
B
U40
E
33
23
+
REV 1.00
D3
C215ALARM#1
+
9071 RST
D53
R325
D54
C
R
6
R
9
8
A
C
JP84
C94
A
C
A
U2
U41
C285
RP1
49
JP50
U19
1
1
11
JP35
9072 RST
Y2
JP69
UPGRADE#1
R376
C198
JP25:OH#1 TEMP
DESIGNED IN USA
OPEN:45
1-2:50
2-3:55
C
C
C
JP78
1
7
C
8
6
C
2
7
1
C
2
7
2
32
C201
C
2
0
8
R
2
2
6
R249
C85
R257
C3
Y1
+
1
+
BAR CODE
JP18
JP18
JP45
ALARM#2
+
JP37I2C#1
4
1
JP46
BUZZER RESECT138
C5
JP45:OH#2 TEMP
OPEN:45
1-2:50
+
JP47
C
C
C
C45
I2C#2
2-3:55
+
F
2
F
1
+
+
ACT_IN#8-11
C197
JP52
I2C#3
ACT_IN#0-7
BZ1
C84
+
R141
Figure 2-2: Front Jumpers
Explanation of Jumpers
3
2
1
Connector
Pins
To modify the operation of the backplane,
jumpers can be used to choose between
optional settings. Jumpers create shorts
between two pins to change the function
of the connector. Pin 1 is identified with
a square solder pad on the printed circuit
board. Note: On two pin jumpers, "Closed"
means the jumper is on and "Open" means
the jumper is off the pins.
Jumper
Setting
3
2
1
Jumper Settings
Jumper
Jumper Settings
Open: Default
Note
MG9072 Chip Reset #1
MG9071 Chip Reset #2
*Buzzer Reset #2
JP35
JP50
JP18
Closed: Reset
Open: Default
Closed: Reset
Open: Default
Closed: Reset
*The buzzer sound indicates that an overheat condition, a fan failure or a drive
failure has occurred.
2-4
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Chapter 2: Jumpers and Pin Definitions
I2C and SGPIO Modes and Jumper Settings
This backplane can utilize I2C or SGPIO. SGPIO is the default mode and can be
used without making changes to your jumpers. The following information details
which jumper must be configured to use SGPIO mode or restore your backplane
to I2C mode.
Jumper Settings: SGPIO (Default) and I2C
Jumper
JP84
SGPIO (Default) Setting
I2C Setting
1-2: SGPIO mode enable
2-3: I2C mode enable
2-5
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SAS-826A Backplane User's Guide
Front LED Indicators
D53
C202
+
B
SAS826A
C44
JP25
JP84
1
B
U40
JP84:MODE
1-2:SGPIO
2-3:I2C
33
23
+
REV 1.00
D3
C215ALARM#1
+
9071 RST
D53
R325
D54
R
6
R
9
8
A
C
C94
A
C
A
C
U2
U41
C285
RP1
49
Alarm 1
U19
1
1
11
9072 RST
Y2
JP69
UPGRADE#1
R376
C198
JP25:OH#1 TEMP
DESIGNED IN USA
OPEN:45
1-2:50
2-3:55
C
C
C
D54
JP78
1
7
C
8
6
C
2
7
1
C
2
7
2
32
C201
C
2
0
8
R
2
2
6
R249
C85
R257
C3
Y1
+
1
BAR CODE
JP18
JP45
ALARM#2
+
Alarm 2
JP37I2C#1
4
1
JP46
BUZZER RESECT138
C5
JP45:OH#2 TEMP
JP47
OPEN:45
1-2:50
2-3:55
C
C
C
C45
I2C#2
+
F
2
F
1
+
+
ACT_IN#8-11
C197
JP52
I2C#3
ACT_IN#0-7
BZ1
C84
+
R141
Figure 2-3: Front LEDs
Front Panel LEDs
LED
Alarm #1 (D3)
State
Specification
Overheat/drive failure in Channel 1 will
activate the buzzer.
On
Overheat/drive failure in Channel 2 will
activate the buzzer.
Alarm #2 (D36)
On
On
On
Indicates +5V power. Light is on during
normal operation.
D53
D54
Indicates +12V power. Light is on during
normal operation.
2-6
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Chapter 2: Jumpers and Pin Definitions
2-4 Rear Connectors and LED Indicators
D25
30
D28
D33
D21
D14
R86
D
D20
SAS
#5
SAS
SAS
D7
2
SAS #2
J3
SAS #11
J20
SAS #8
SAS #5
J11
#11
J17
D24
D27
D13
D18
D29
D32
D19
S
D6
SAS
#4
SAS
SAS #1
J2
SAS #7
J15
SAS #10
J19
SAS #4
J9
0
D15
D22
D26
D12
SAS826A
RV 1.00
D23
D
5
D8
D23
D31
SAS
3
SAS
#6
AS
SAS #0
J1
SAS #9
SAS #3
J4
SAS #6
J13
J18
Figure 2-4: Rear Connectors and LEDs
Rear SAS/SATA Connectors
Rear
Connector
SAS Drive
Number
Rear
Connector
SAS Drive
Number
SAS #0
SAS/SATA HHD #0
SAS/SATA HHD #1
SAS/SATA HHD #2
SAS/SATA HHD #3
SAS/SATA HHD #4
SAS/SATA HHD #5
SAS #6
SAS #7
SAS #8
SAS #9
SAS #10
SAS #11
SAS/SATA HHD #6
SAS/SATA HHD #7
SAS/SATA HHD #8
SAS/SATA HHD #9
SAS/SATA HHD #10
SAS/SATA HHD #11
SAS #1
SAS #2
SAS #3
SAS #4
SAS #5
Rear LED Indicators
Hard Drive Activity
Rear LED
SAS #0
SAS #1
SAS #2
SAS #3
SAS #4
SAS #5
SAS #6
SAS #7
SAS #8
SAS #9
SAS #10
SAS #11
Failure LED
D5
D12
D13
D14
D15
D18
D21
D22
D24
D25
D26
D27
D28
D6
D7
D8
D19
D20
D23
D29
D30
D31
D32
D33
2-7
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SAS-826A Backplane User's Guide
Disclaimer (cont.)
The products sold by Supermicro are not intended for and will not be used in life sup-
port systems, medical equipment, nuclear facilities or systems, aircraft, aircraft devices,
aircraft/emergency communication devices or other critical systems whose failure to per-
form be reasonably expected to result in significant injury or loss of life or catastrophic
property damage. Accordingly, Supermicro disclaims any and all liability, and should
buyer use or sell such products for use in such ultra-hazardous applications, it does so
entirely at its own risk. Furthermore, buyer agrees to fully indemnify, defend and hold
Supermicro harmless for and against any and all claims, demands, actions, litigation,
and proceedings of any kind arising out of or related to such ultra-hazardous use or
sale.
2-8
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