Gigabyte GA-7TCSV1 Manual - Page 20

English GA-7TCSV-RH Motherboard 13 ) SGPIO2 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. Pin No. Definition 1 DATAOUT 1 2 NC 3 DATAOUT 4 GND 5 GND 6 LOAD 7 NC 8 CLOCK 14/ 15/ 16/ 17/18/19 ) CPU_FAN1/2 / SYS_FAN1/2/3/4 (CPU fan / System fan cable connectors) The cooler fan power connector supplies a +12V power voltage via a 3-pin/4-pin(CPU_FAN) power connector and possesses a foolproof connection design. Most coolers are designed with color-coded power connector wires. A red power connector wire indicates a positive connection and requires a +12V power voltage. The black connector wire is the ground wire (GND). Remember to connect the CPU/system fan cable to the CPU_FAN/SYS_FAN connector to prevent CPU damage or system hanging caused by overheating. SYS FAN1 SYS FAN2 CPU2 FAN 1 1 SYS FAN3 SYS FAN4 CPU1 FAN Pin No. 1 2 3 4 Definition GND 12V Sense Control 20