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SC825 Chassis Manual
D-3 Version Information
The BPN-SAS3-825TQ backplane has been designed to utilize the most up-to-date
technology available, providing your system with reliable, high-quality performance.
This manual reflects PCB Revision 2.00a, the most current release available at the
time of publication. Refer to the Supermicro Web site at www.supermicro.com for
the latest updates, compatible parts and supported configurations.
D-2
Appendix D: BPN-SAS3-825TQ Backplane Specifications
D-4 Rear Connector Locations
The following connectors are on the side of the backplane that faces the rear of the
chassis. They are marked by silkscreen labels.
1
1
2
1
1
1
1
8
+12V
+12V
GND
GND
GND
GND
+5V
+5V
+12V
+12V
GND
GND
GND
GND
+5V
+5V
1
1
48
48
1
1
1
9
16
16
32
32
JP29:9072 RESET
JP29:9072 RESET
Figure D-1. Rear Connector Locations
1. Power connectors: JP10, JP13
2. CD/floppy drive power connectors:
J17. J18
3. Activity LED header: JP26
4. I
2
C connector #2: JP45
1
1
1 6
1 7
+12V
+12V
GND
GND
GND
GND
+5V
+5V
+12V
+12V
GND
GND
GND
GND
+5V
+5V
1
1
48
48
1
1
1
1
1 3
1 2
16
16
32
32
JP29:9072 RESET
JP29:9072 RESET
Figure D-2. Rear SAS/SATA Connectors
10. Cable connector #0: J5
11. Cable connector #1: J6
12. Cable connector #2: J7
13. Cable connector #3: J8
1
1
1
4
3
1
2
6
ACT_IN
ACT_IN
I C
I C
2
2
#2
#2
SIDEBAND #2
SIDEBAND #2
1
1
1
5
SAS825TQ
SAS825TQ
REV 2.0
REV 2.0
BAR CODE
BAR CODE
I C
I C
2
2
#1
#1
SIDEBAND #1
SIDEBAND #1
1
7
5. I
C connector #1: JP44
2
6. Sideband connector #2: JP52
7. Sideband connector #1: JP51
8. MG9072 chip: U40
9. Upgrade header: JP46
1
1
1 4
1 5
I C
I C
2
2
#2
#2
SIDEBAND #2
SIDEBAND #2
ACT_IN
ACT_IN
1
1
SAS825TQ
SAS825TQ
1
REV 2.0
REV 2.0
1 0
BAR CODE
BAR CODE
1
I C
I C
2
2
#1
#1
1 1
SIDEBAND #1
SIDEBAND #1
14. Cable connector #4: J10
15. Cable connector #5: J12
16. Cable connector #6: J14
17. Cable connector #7: J16
D-3
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