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22) SATA_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.
23) BAT (Battery)
The battery provides power to keep the values (such as BIOS configurations, date, and time information)
in the CMOS when the computer is turned off. Replace the battery when the battery voltage drops to a
low level, or the CMOS values may not be accurate or may be lost.
• Always turn off your computer and unplug the power cord before replacing the battery.
• Replace the battery with an equivalent one. Danger of explosion if the battery is replaced with an incorrect
model.
• Contact the place of purchase or local dealer if you are not able to replace the battery by yourself or
uncertain about the battery model.
• When installing the battery, note the orientation of the positive side (+) and the negative side (-) of the
battery (the positive side should face up).
• Used batteries must be handled in accordance with local environmental regulations.
Hardware Installation
2
1
Pin No. Definition
1
2
3
4
5
6
7
8
- 31 -
8
7
SGPIO_SATA_DATAIN
No Pin
SGPIO_SATA_DATAOUT
GND
GND
SGPIO_SATA_LOAD
NC
SGPIO_SATA_CLOCK
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