ASUS RS700-E7/RS8 用户手册

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页码 194
2-21
ASUS RS700-E7/RS8
2.7 
SATAII/SAS backplane cabling
Front side
The front side of the SATIIA/SAS backplane faces the front panel when installed. 
This side includes eight SATAII/SAS connectors for the hot swap drive trays.
Connect the SATAII/SAS HDDs
Connects the data cables 
connected to the motherboard
Back side
The back side of the SATAII/SAS backplane faces the rear panel when installed. 
This side includes the power connectors and SATAII/SAS interfaces for the 
motherboard Serial ATA connectors or the SAS card.
Connects a 8-pin 
plug from power 
supply
SGPIO_SEL jumper:  
pins 1-2 (Onboard) 
pins 2-3 (Add-on card)