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1 Rev..0b SS 826TQ Backplane USER'S GUIDE JP6 JP3 JP0 Y2 F F2 F F5 F7 F8 F3 F6 F9 U JP66 JP68 JP BZ D53 D5 D3 D36 RT2 JP8 JP35 JP50 R3 R36 R38 R3 R27 R32 R202 R79 R78 R75 R23 R22 R363 R350 R36 R3 R2 R325 R73 R392 R368 R367 R223 R R257 R7 R25 R2 R365 R360 R37 R26 R26 R292 R30 R39 R326 R327 R328 R329 R333 R335 R352 R97 R22 R0 R R63 R226 R232 R29 R08 R229 R67 R8 R98 R3 R R9 R22 R23 R2 R23 R25 R27 R5 R66 R83 R26 R263 R265 R22 R2 R28 R55 R6 R39 R26 R266 R32 R56 R38 R85 R3 R33 R68 R36 R27 R272 R37 R3 R35 JP25 JP5 JP8 D79 D78 D77 D76 D7 D70 D68 D67 D66 D65 D6 D63 D62 D6 D60 D59 D58 D57 D56 D55 JP37 JP95 JP52 U2 U62 U63 U6 U65 U67 U69 U70 U7 U72 U20 U39 JP69 JP78 RP RP U2 U9 J7 J6 J5 J8 J2 J23 J25 J6 J J2 J0 J22 JP26 JP7 U U36 U U29 U3 U32 U6 U3 U5 U8 U30 U52 U25 U26 3. REV: SS826TQ MH FINISH 30 NGLE SPEIFIED DIMENSIONS UNLESS OTHERWISE XXX XX X TOLERNES DEIML RE IN INHES Shen/Nina DESINGER: DTE: 0/3/2007 PROJET NME: SN JOSE, 953 DESIGNED BY MIRO U.S.. TEL: FX: SILKSREEN PRIMRY-SIDE R R BR ODE 907 RST T T T0 T9 T8 T3 T2 T T7 T6 T5 T0 2-3:I2-2:SGPIO JP8:MODE -2:50 OPEN:5 JP5:OH#2 TEMP -2:50 OPEN:5 JP25:OH# TEMP 9072 RST LRM# LRM#2 T_IN#8- T_IN#0-7 UPGRDE#2 UPGRDE# # #2 #3 # #7 # #0 #9 SIDEBND#3 I2#3 SIDEBND#2 I2#2 I2# BUZZER RESET REV 3. SS826TQ

2 SS-826TQ Backplane User s Guide 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 Super Micro omputer, 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 MIRO BE LIBLE FOR DIRET, INDIRET, SPEIL, INIDENTL, SPEULTIVE OR ONSEQUENTIL DMGES RISING FROM THE USE OR INBILITY TO USE THIS PRODUT OR DOUMENTTION, EVEN IF DVISED OF THE POSSIBILITY OF SUH DMGES. IN PRTIULR, MIRO SHLL NOT HVE LIBILITY FOR NY HRDWRE, SOFTWRE, OR DT STORED OR USED WITH THE PRODUT, INLUDING THE OSTS OF REPIRING, REPLING, INTEGRTING, INSTLLING OR REOVERING SUH HRDWRE, SOFTWRE, OR DT. ny disputes arising between manufacturer and customer shall be governed by the laws of Santa lara ounty in the State of alifornia, US. The State of alifornia, ounty of Santa lara 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. F Statement: This equipment has been tested and found to comply with the limits for a lass digital device pursuant to Part 5 of the F Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the manufacturer s instruction manual, may cause harmful interference with radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case you will be required to correct the interference at your own expense. alifornia Best Management Practices Regulations for Perchlorate Materials: This Perchlorate warning applies only to products containing R (Manganese Dioxide) Lithium coin cells. Perchlorate Material-special handling may apply. See WRNING: Handling of lead solder materials used in this product may expose you to lead, a chemical known to the State of alifornia to cause birth defects and other reproductive harm. Manual Revision.0b Release Date: October 3, 2008 Unless you request and receive written permission from Super Micro omputer, 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. opyright 2008 by Super Micro omputer, Inc. ll rights reserved. Printed in the United States of merica ii

3 Safety Information and Technical Specifications Table of ontents ontacting Supermicro...iv Returning Merchandise for Service...v hapter BPN-SS 826TQ Safety Guideliness - ESD Safety Guidelines General Safety Guidelines n Important Note to Users hapter 2 Jumpers and Pin Definitions 2- Front onnectors and Jumpers Front onnectors SS Ports Front onnector and Pin Definitions Front Jumper Locations and Pin Definitions Explanation of Jumpers I 2 and SGPIO Modes and Jumper Settings SS Port onnections in I 2 and SGPIO Settings Front LED Indicators Rear onnectors and LED Indicators iii

4 SS-826TQ Backplane User s Guide ontacting Supermicro Headquarters ddress: Super Micro omputer, Inc. 980 Rock ve. San Jose, 953 U.S.. Tel: (08) Fax: (08) (General Information) (Technical Support) Web Site: Europe ddress: Super Micro omputer B.V. Het Sterrenbeeld 28, 525 ML 's-hertogenbosch, The Netherlands Tel: 3 (0) Fax: 3 (0) (General Information) (Technical Support) (ustomer Support) sia-pacific ddress: Super Micro omputer, Inc. F, No. 232-, Liancheng Rd. hung-ho 235, Taipei ounty Taiwan, R.O.. Tel: 886-(2) Fax: 886-(2) Web Site: Technical Support: Tel: iv

5 Safety Information and Technical Specifications Returning Merchandise for Service 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 uthorization (RM) number. When returning to the manufacturer, the RM 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, RM authorizations may be requested online ( 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 first for any product problems. v

6 SS-826TQ Backplane User s Guide Notes vi

7 Safety Information and Technical Specifications hapter SS-826TQ Safety Guideliness To avoid personal injury and property damage, carefully follow all the safety steps listed below when accessing your system or handling the components. - ESD Safety Guidelines Electric Static Discharge (ESD) can damage electronic com ponents. To prevent damage 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 RID card 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. -2 General Safety Guidelines lways disconnect power cables before installing or removing any components from the computer, including the SS-826TQ Backplane. Disconnect the power cable before installing or removing any cables from the SS-826TQ Backplane. Make sure that the SS-826TQ Backplane is securely and properly installed on the motherboard to prevent damage to the system due to power shortage. -

8 SS 826TQ Backplane Specifications -3 n Important Note to Users ll images and layouts shown in this user's guide are based upon the latest PB 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. -2

9 F9 D79 D78 D77 F9 D79 D78 D R R JP6 F7 F8 93 JP78 PROJET NME: SS826TQ DESIGNED BY MIRO U.S.. DTE: 0/3/2007 REV: SN JOSE, 953 TEL: FX: DESINGER: JP6 SN JOSE, 953 TEL: FX: DESINGER: F7 F8 93 J25 Shen/Nina J25 JP78 UPGRDE#2 PROJET NME: SS826TQ DESIGNED BY MIRO U.S.. DTE: 0/3/2007 REV: Shen/Nina UPGRDE#2 R0 R2 R R352 R350 R22 R R R0 R2 R R352 R350 R22 R R U9 U U0 2 U R26 R27 R26 22 Y2 R R26 R27 R26 22 Y2 R229 R R266 R272 R263 2 F6 R RP U63 U30 UNLESS OTHERWISE SPEIFIED DIMENSIONS RE IN INHES TOLERNES DEIML NGLE X. 30 XX.03 MH FINISH XXX.00 R R266 R272 R263 2 F6 R RP U63 U30 UNLESS OTHERWISE SPEIFIED DIMENSIONS RE IN INHES TOLERNES DEIML NGLE X. 30 XX.03 MH FINISH XXX R R U69 F 29 U69 F U52 U29 U65 U52 U29 U F5 F5 R257 R3 JP3 R257 R3 JP3 8 R29 8 R29 U32 U67 U32 U JP52 JP75 68 JP52 JP75 68 D76 D70 I2#3 D76 D70 I2#3 SIDEBND#3 SIDEBND# D7 D67 D66 D7 D67 D66 R26 R39 R333 R26 R39 R333 R335 R335 JP8 JP8 J22 J22 BUZZER RESET BUZZER RESET JP35 38 JP RST 9072 RST R392 R 08 BZ 33 BZ 33 F3 F3 JP50 R22 0 U U5 JP50 R392 R 08 R22 0 U U5 U20 U RST 25 U39 R RST 25 U39 R223 U6 U6 8 8 LRM# R202 RT2 LRM# R202 RT2 JP5 JP5 R97 R97 D3 R6 R98 U2 JP0 D3 R6 R98 U2 JP0 F2 F2 R F R F R7 U R9 D36 LRM#2 R7 32 D36 LRM#2 U3 20 R9 U36 79 U JP25 JP25 D6 D63 R73 D68 R73 D JP25:OH# TEMP OPEN:5-2: JP25:OH# TEMP OPEN:5-2:50 D6 D R78 R78 D59 D58 D59 D58 D65 D65 JP8:MODE -2:SGPIO 2-3:I2 JP8:MODE 2-3:I2-2:SGPIO J8 J8 JP8 JP8 U26 R68 R67 36 R66 R36 R8 R85 R35 9 R3 R83 R363 R365 R363 R365 T8 R39 R39 R38 R38 0 U3 U26 R68 R67 36 R66 R36 R8 R85 R35 9 R3 R83 R55 R56 R5 35 T_IN#8- JP7 0 U3 R55 R56 R5 35 T_IN#8- T9 JP7 06 JP95 JP68 06 JP95 JP68 R33 R33 R37 R28 R37 R U 75 R27 U R27 I2#2 I2#2 U70 R32 U70 R R3 07 R3 07 R368 U8 R368 U8 U7 SIDEBND#2 U7 SIDEBND#2 U25 R36 U25 R36 R25 R326 R327 R329 R26 R292 R328 R25 R326 R327 R329 R26 R292 R U72 33 U72 R23 32 R23 32 R22 R22 R3 9 R2 3 8 R3 9 R R2 R R79 R79 D62 D6 D60 D62 D6 D R75 R75 R367 R367 D57 D56 D55 D57 D56 D55 T_IN#0-7 JP26 T_IN#0-7 JP26 T T T5 T6 T0 T2 T T3 T5 T6 T0 T2 T T3 T7 9 9 UPGRDE# T7 UPGRDE# R23 R22 R25 R2 87 JP69 JP37 JP66 R23 R22 R25 R2 87 JP69 JP37 JP I2# I2# U2 U2 R32 R3 R32 R R3 7 R D53 R08 R37 7 D53 R08 R R325 R D5 99 D U6 U R36 R R36 R RP RP R30 R3 U62 R38 R30 R3 U62 R38 Safety Information and Technical Specifications hapter 2 Jumpers and Pin Definitions 2- Front onnectors and Jumpers 98 SS826TQ REV # 6 5 #0 #9 J2 J23 SILKSREEN PRIMRY-SIDE 6 #7 J6 J 6 JP5:OH#2 TEMP OPEN:5-2:50 3 J2 J0 # 85 # Figure 2-: Front onnectors T0 T BR ODE #2 J7 J6 J5 # Front onnectors #. T_IN: JP26 and JP7 #2. hips: MG 907 and MG 9072 #3. I 2 onnector# JP37 #. I 2 onnector#2 JP95 #5. I 2 onnector#3 JP52 #6. Power onnectors (-pin): JP0, JP3, and JP6 #7. SideBand onnector# JP66 #8. SideBand onnector#2 JP68 #9. SideBand onnector#3 JP75 SS Ports #0. SS Port #0 J5 #. SS Port # J6 #2. SS Port #2 J7 #3. SS Port #3 J8 #. SS Port # J0 #5. SS Port #5 J2 #6. SS Port #6 J #7. SS Port #7 J6 #8. SS Port #8 J22 #9. SS Port #9 J23 #20. SS Port #0 J2 #2. SS Port # J25 98 SS826TQ REV # #0 #9 J2 J23 SILKSREEN PRIMRY-SIDE #7 J6 J JP5:OH#2 TEMP OPEN:5-2: # J2 J0 #3 T T0 T9 T8 Figure 2-2: Front SS Ports BR ODE #2 J7 J6 J5 #

10 SS 826TQ Backplane Specifications 2-2 Front onnector and Pin Definitions #. ctivity LED Headers The activity LED headers, designated JP26 and JP7, are used to indicate the activity status of each SS drive. The activity LED headers are located on the front panel. For the activity lead headers to work properly, connect to them using a 0-pin LED cable. This is only used when the activity LED is not supported by the hard drive. SS ctivity LED Header Pin Definitions (JP26) Pin # Definition Pin # Definition T IN#0 6 T IN# 2 T IN# 7 T IN#5 3 T IN#2 8 T IN#6 T IN#3 9 T IN#7 5 Ground 0 Empty SS ctivity LED Header Pin Definitions (JP7) Pin # Definition Pin # Definition T IN#8 6 T IN#2 2 T IN#9 7 T IN#3 3 T IN#0 8 T IN# T IN# 9 T IN#5 5 Ground 0 Empty #2. MG907 and MG9072 hips The MG907 and MG9072 are enclosure management chips that support the SES-2 controller and SES-2 protocols. #3/#/#5. I 2 onnectors The I 2 onnectors, designated JP37, JP52, and JP95, are used to monitor HDD activity and status. See the table on the right for pin definitions. Pin# I 2 onnector Pin Definitions (JP37, JP52, and JP95) Definition Data 2 Ground 3 lock No onnection 2-2

11 Safety Information and Technical Specifications #6. Backplane Main Power onnectors The -pin connectors, designated JP0, JP3, and JP6 provide power to the backplane. See the table on the right for pin definitions. Pin# Backplane Main Power -Pin onnector (JP0, JP3, and JP6) Definition 2V 2 and 3 Ground 5V #7/#8/#9. Sideband Headers SGPIO is the default mode setting. The sideband headers are designated JP66, JP68, and JP75. For SES-2 to work properly, you must connect an 8-pin sideband cable. See the table to the right for pin definitions. Sideband Headers (JP66, JP68, and JP75) Pin # Definition Pin # Definition 2 SGPIO: SDIN; I 2 : Backplane ddressing SGPIO: SDOUT; I 2 : Reset ontroller ID (SB6) 3 GND (SB2) 6 GND (SB3) 5 SGPIO: SLOD; I 2 : SD 8 Backplane ID (SB7) 0 No onnection 7 SGPIO: SLOK; 2 : SL 9 No onnection #0-#2. SS Ports The SS ports are used to connect the SS drive cables. The 2 ports are designated #0 - #. Each port is also compatible with ST drives. 2-3

12 F9 D79 D78 D R JP6 SN JOSE, 953 TEL: FX: DESINGER: F7 F8 93 J25 JP78 UPGRDE#2 PROJET NME: SS826TQ DESIGNED BY MIRO U.S.. DTE: 0/3/2007 REV: Shen/Nina R0 R2 R R352 R350 R22 R R U U R26 R27 R26 22 Y2 R229 R R266 R272 R263 2 F6 R RP U63 U30 UNLESS OTHERWISE SPEIFIED DIMENSIONS RE IN INHES TOLERNES DEIML NGLE X. 30 XX.03 MH FINISH XXX R U69 F U52 U29 U65 29 F5 R257 R3 JP3 8 R29 U32 U JP52 JP75 68 D76 D70 I2#3 SIDEBND# D7 D67 D66 R26 R39 R333 R335 JP8 J22 BUZZER RESET JP RST R392 R 08 BZ 33 F3 JP50 R22 0 U U5 U RST 25 U39 R223 U6 8 LRM# R202 RT2 JP5 R97 D3 R6 R98 U2 JP0 F2 R F R R9 D36 LRM#2 U3 U JP25 R73 D JP25:OH# TEMP OPEN:5-2:50 D6 D63 26 R78 D59 D58 D65 JP8:MODE -2:SGPIO 2-3:I2 J8 JP8 R363 R365 R39 R38 0 U3 U26 R68 R67 36 R66 R36 R8 R85 R35 9 R3 R83 R55 R56 R5 35 T_IN#8- JP7 06 JP95 JP68 R33 R37 R U R27 I2#2 U70 R R3 07 R368 U8 U7 SIDEBND#2 U25 R36 R25 R326 R327 R329 R26 R292 R U72 R23 32 R22 R3 9 R R R79 D62 D6 D R75 R367 D57 D56 D55 T_IN#0-7 JP26 T T5 T6 T0 T2 T T3 9 UPGRDE# T7 R23 R22 R25 R2 87 JP69 JP37 JP66 00 I2# 02 U2 R32 R3 R 7 D53 R08 R37 86 R D U R36 R RP R30 R3 U62 R38 SS 826TQ Backplane Specifications 2-3 Front Jumper Locations and Pin Definitions 98 SS826TQ REV # #0 #9 J2 J JP35 JP8 #7 J6 J JP50 JP5:OH#2 TEMP OPEN:5-2:50 3 JP8 # J2 J0 #3 T T0 T9 T8 BR ODE #2 J7 J6 J5 # 8 33 SILKSREEN PRIMRY-SIDE Figure 2-3: Front Jumpers Explanation of Jumpers 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 is identified with a square solder pad on the printed circuit board. Note: On two pin jumpers, "losed" means the jumper is on and "Open" means the jumper is off the pins. onnector Pins Jumper Setting Jumper Settings JP35 JP50 JP8 Jumper Jumper Settings Note Open: Default losed: Reset Open: Default losed: Reset Open: Default losed: Reset 9072 hip Reset # 907 hip Reset #2 Buzzer Reset #2 2-

13 Safety Information and Technical Specifications I 2 and SGPIO Modes and Jumper Settings This backplane can utilize I 2 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 I 2 mode. Jumper Settings: SGPIO (Default) and I 2 Jumper SGPIO (Default) Setting I 2 Setting JP8-2: SGPIO mode enable 2-3: I 2 mode enable 2-5

14 F9 D79 D78 D R JP6 F7 F8 93 J25 # JP78 UPGRDE#2 #0 #9 PROJET NME: SS826TQ DESIGNED BY MIRO U.S.. DTE: 0/3/2007 REV: SN JOSE, 953 TEL: FX: DESINGER: Shen/Nina R0 R2 R R352 R350 R22 R R U U R26 R27 R26 22 Y2 R229 R R266 R272 R263 2 F6 R RP U63 U30 UNLESS OTHERWISE SPEIFIED DIMENSIONS RE IN INHES TOLERNES DEIML NGLE X. 30 XX.03 MH FINISH XXX R U69 F U52 U29 U65 29 F5 R257 R3 JP3 8 R29 U32 U JP52 JP75 68 D76 D70 I2#3 SIDEBND# D7 D67 D66 R26 R39 R333 R335 JP8 J22 BUZZER RESET #7 JP RST R392 R 08 BZ 33 F3 JP50 R22 0 U U5 U RST 25 U39 R223 U6 8 LRM# R202 RT2 JP5 R97 D3 R6 R98 U2 JP0 F2 R F R R9 D36 LRM#2 U3 U JP25 R73 D JP25:OH# TEMP OPEN:5-2:50 D6 D63 26 R78 D59 D58 D65 JP8:MODE 2-3:I2-2:SGPIO # J8 #3 JP8 R363 R365 R39 R38 0 U3 U26 R68 R67 36 R66 R36 R8 R85 R35 9 R3 R83 R55 R56 R5 35 T_IN#8- JP7 06 JP95 JP68 R33 R37 R U R27 I2#2 U70 R R3 07 R368 U8 U7 SIDEBND#2 U25 R36 R25 R326 R327 R329 R26 R292 R U72 R23 32 R22 R3 9 R R R79 D62 D6 D R75 R367 D57 D56 D55 T_IN#0-7 T5 T T6 JP26 T0 T2 T T3 9 #2 UPGRDE# # T7 R23 R22 R25 R2 87 JP69 JP37 JP66 00 I2# 02 U2 R32 R3 R 7 D53 R08 R37 86 R D U R36 R RP R30 R3 U62 R38 SS 826TQ Backplane Specifications SS Port onnections in I 2 and SGPIO Settings Use the following chart when connecting this backplane. If the SS ports are connected out of order, it is not easy to identify drives using the LED function. SS Port onnections in I 2 and SGPIO Settings Port # I 2 SGPIO # 0-3 I 2 # Sideband # # - 7 I 2 #2 Sideband #2 # 8 - I 2 #3 Sideband #3 98 SS826TQ REV Front LED Indicators J2 J larm larm 2 J6 J JP5:OH#2 TEMP OPEN:5-2:50 3 J2 J0 T T0 T9 T8 BR ODE J7 J6 J5 D53 D SILKSREEN PRIMRY-SIDE Figure 2-: Front LEDs Front Panel LEDs LED STTE SPEIFITION larm # (D3) ON Overheat/drive failure in hannel. larm #2 (D36) ON Overheat/drive failure in hannel 2. D53 D5 ON ON Indicates 5V power. Light is on during normal operation. Indicates 2V power. Light is on during normal operation. 2-6

15 SS SS J3 J2 J R86 R83 R89 R87 D3 D6 SS SS SS J J9 J R50 R9 R95 R96 SS SS SS J7 J5 J3 R79 R73 R78 R6 R65 R7 SS SS SS R J20 J9 J8 R77 R76 R8 R82 R75 R80 D32 Safety Information and Technical Specifications 2- Rear onnectors and LED Indicators SS #2 J3 SS # J2 SS #0 J #2 # #0 SS D D7 D3 D6 D2 D5 T#2 FIL#2 D7 D R8 R85 SS #5 J T# FIL# T#0 FIL#0 SS # J9 D2 D5 SS #3 J #5 # #3 D2 D20 D8 D9 D5 D8 T#5 FIL#5 D20 D2 R88 R90 SS #8 J7 T# FIL# D8 D9 T#3 FIL#3 D5 D8 SS #7 J5 SS #6 J3 #8 #7 #6 D25 D30 D2 D29 D22 D23 Figure 2-5: Rear onnectors and LEDs T#8 FIL#8 D25 D30 SS # J20 T#7 FIL#7 D2 D29 SS #0 J9 D22 D23 T#6 FIL#6 SS #9 J8 # #0 #9 D28 D33 D27 D32 D26 D3 D33 D28 FIL# T# T#0 FIL#0 T#9 FIL#9 D27 D26 D3 Rear SS/ST onnectors Rear onnector SS Drive Number Rear onnector SS Drive Number SS #0 SS/ST HHD #0 SS #6 SS/ST HHD #6 SS # SS/ST HHD # SS #7 SS/ST HHD #7 SS #2 SS/ST HHD #2 SS #8 SS/ST HHD #8 SS #3 SS/ST HHD #3 SS #9 SS/ST HHD #9 SS # SS/ST HHD # SS #0 SS/ST HHD #0 SS #5 SS/ST HHD #5 SS # SS/ST HHD # Rear LED Indicators Rear LED Hard Drive ctivity Failure LED SS #0 D2 D5 SS # D3 D6 SS #2 D D7 SS #3 D5 D8 SS # D8 D9 SS #5 D2 D20 SS #6 D22 D23 SS #7 D2 D29 SS #8 D25 D30 SS #9 D26 D3 SS #0 D27 D32 SS # D28 D33 2-7

16 SS 826TQ Backplane Specifications Disclaimer (cont.) The products sold by Supermicro are not intended for and will not be used in life support systems, medical equipment, nuclear facilities or systems, aircraft, aircraft devices, aircraft/emergency communication devices or other critical systems whose failure to perform be reasonably expected to result in significant injury or loss of life or catastrophic property damage. ccordingly, 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