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17) SGPIO (SATA SGPIO Header)
SGPIO is stands for Serial General Purpose Input/Output which is a 4-signal (or 4-wire) bus used
between a Host Bus Adapter (HBA) and a backplane. Out of the 4 signals, 3 are driven by the HBA and
1 is driven by the backplane. Typically, the HBA is a storage controller located inside a server, desktop,
rack or workstation computer that interfaces with Hard disk drives (HDDs) to store and retrieve data.
18) IPMB1 (IPMB connector)
Hardware Installation
Pin No.
1
2
1
2
3
4
7
8
5
6
7
8
1
3
- 26 -
Definition
SGPIO_SATA_DATAIN
No Pin
SGPIO_SATA_DATAOUT
GND
GND
SGPIO_SATA_LOAD
NC
SGPIO_SATA_CLOCK
Pin No.
Definition
1
SCL
2
GND
3
SDA
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