The information in this User’s Manual has been carefully reviewed and is believed to be accurate.
The vendor assumes no responsibility for any inaccuracies that may be contained in this document,
makes no commitment to update or to keep current the information in this manual, or to notify any
person or organization of the updates. Please Note: For the most up-to-date version of this
manual, please see our web site at www.supermicro.com.
Super Micro Computer, Inc. ("Supermicro") reserves the right to make changes to the product
described in this manual at any time and without notice. This product, including software, if any,
and documentation may not, in whole or in part, be copied, photocopied, reproduced, translated or
reduced to any medium or machine without prior written consent.
IN NO EVENT WILL SUPERMICRO BE LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENT AL,
SPECULATIVE OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OR INABILITY TO
USE THIS PRODUCT OR DOCUMENTATION, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES. IN PARTICULAR, SUPERMICRO SHALL NOT HAVE LIABILITY FOR ANY
HARDWARE, SOFTW ARE, OR DA TA STORED OR USED WITH THE PRODUCT, INCLUDING THE
COSTS OF REPAIRING, REPLACING, INTEGRATING, INSTALLING OR RECOVERING SUCH
HARDWARE, SOFTWARE, OR DATA.
Any disputes arising between manufacturer and customer shall be governed by the laws of Santa
Clara County in the State of California, USA. The State of California, County of Santa Clara shall
be the exclusive venue for the resolution of any such disputes. Super Micro's total liability for all
claims will not exceed the price paid for the hardware product.
California Best Management Practices Regulations for Perchlorate Materials: This Perchlorate
warning applies only to products containing CR (Manganese Dioxide) Lithium coin cells. “Perchlorate
Material-special handling may apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate”
WARNING: Handling of lead solder materials used in this
product may expose you to lead, a chemical known to
the State of California to cause birth defects and other
reproductive harm.
Manual Revision 1.0d
Release Date: January 6, 2010
Unless you request and receive written permission from Super Micro Computer, Inc., you may not
copy any part of this document.
Information in this document is subject to change without notice. Other products and companies
referred to herein are trademarks or registered trademarks of their respective companies or mark
holders.
A receipt or copy of your invoice marked with the date of purchase is required before 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.
For faster service, RMA authorizations may be requested online (http://www.
supermicro.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 incurred in shipping or from failure due to the alteration, misuse, abuse or improper
maintenance of products.
During the warranty period, contact your distributor fi rst for any product problems.
vi
Safety Information and Technical Specifi cations
Chapter 1
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
Electrotatic Discharge (ESD) can damage electronic com ponents. T o prevent damage
to your system, it is important to handle it very carefully . The following measures are
generally suffi cient 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 backplane 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 backplane.
Disconnect the power cable before installing or removing any cables from the
•
backplane.
Make sure that the backplane is securely and properly installed on the mother-
•
board to prevent damage to the system due to power shortage.
1-1
SAS-846EL 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.
1-4 Introduction to the SAS-846EL Backplane
The SAS-846EL backplane has been designed to utilize the most up-to-date technology available, providing your system with reliable, high-quality performance.
This manual refl ects SAS-846EL Revision 1.01, the most current release available at
the time of publication. Always refer to the Supermicro W eb site at www.supermicro.
com for the latest updates, compatible parts and supported confi gurations.
1-2
Safety Information and Technical Specifi cations
SEC_J2
SEC_J1
SEC_J0
PRI_J2
PRI_J1
PRI_J0
EC8
EC22
EC20
S_J1
P_J1
L1
SEC_MODE1
PRI_MODE1
SEC_IPMI1
PRI_IPMI1
PRI_I2C1
SEC_I2C1
J25
SEC_FLASH1
PRI_FLASH1
PRI_EXP1
SEC_EXP1
FAN2
FAN1
R227
BUZZER1
5V_LED1
OVERHEATFAIL1
FANFAIL1
BUZZER_ENB1
REMOTE_FAN_FAIL_SOCKET1
PWR6
PWR4
PWR5
PWR3
PWR2
PWR1
BAR CODE
+
+
2
A
C
A
C
C
+5V
+12V
GND
GND
+5V
+12V
GND
GND
+5V
+12V
GND
GND
+5V
+12V
GND
GND
+5V
+12V
GND
GND
+5V
+12V
GND
GND
WWN
WWN
DESIGNED IN USA
REV 1.01
SAS846EL2
1J24
2
Chapter 2
Jumper Settings and Pin Defi nitions
2-1 Front Connectors and Jumpers
1
2
1
1
BUZZER_ENB1
SEC_I2C1
BUZZER1
4
1
EC22
6
1
+12V
SEC_IPMI1
BAR CODE
DESIGNED IN USA
R227
GND
3
1
SEC_J2
SEC_MODE1
L1
13
1
SEC_FLASH1
J25
2
GND
+5V
PWR6
PWR5
EC20
+5V
+12V
GND
GND
+
3
1
SEC_J1
SEC_J0
12
11
1
WWN
5
1
7
1
1
SAS846EL2
REV 1.01
SEC_EXP1
S_J1
A
A
C
C
5V_LED1
+5V
+12V
GND
GND
PWR4
3
1
PWR3
+12V
GND
+5V
GND
3
1
PRI_J2
PRI_J1
10
9
1
1
PRI_EXP1
P_J1
5
1
PWR1
EC8
GND
+5V
+12V
+12V
+5V
GND
GND
FAN2
PWR2
7
3
1
1
GND
+
3
1
Figure 2-1: Front Connectors
Front Connectors
1. and 2. Primary and secondary I2C connectors (optional)
3. Power connectors: PWR1, PWR2, PWR3, PWR4, PWR5, and PWR6
1
2
1
1
REMOTE_FAN_FAIL_SOCKET1
OVERHEATFAIL1
AACCAAC
FANFAIL1
PRI_J0
PRI_IPMI1
PRI_I2C1
8
1
WWN
6
1
FAN1
PRI_FLASH1
4
1
1J24
2
PRI_MODE1
7
1
4. Primary and secondary fl ash chip
5. Primary and secondary expander chip
6. EPP connectors: J24 and J25
7. Fan connectors: Fan1, Fan2, and Fan3
8. SAS connector: PRI_J0
9. SAS connector: PRI_J1
10. SAS connector: PRI_J2
11. SAS connectors SEC_J0 (not available in EL1 single port backplane)
12. SAS connector: SEC_J1 (not available in EL1 single port backplane)
13. SAS connector: SEC_J2 (not available in EL1 single port backplane)
2-1
SAS-846EL Backplane User's Guide
2-2 Front Connector and Pin Defi nitions
1. and 2. Optional Primary and Secondary
2
I
C Connectors
The optional I
2
C connectors are connected to
the CSE-PTJBOD-CB2 board and are used
to monitor the power supply status and to
control the fans. See the table on the right
for pin defi nitions.
3. Backplane Main Power Connectors
The 4-pin connectors, designated PWR1,
PWR2, PWR3, PWR4, PWR5, and PWR6,
provide power to the backplane. See the
table on the right for pin defi nitions.