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2.4.11
SATA 3.0 Connectors (CN26~CN30)
These Serial Advanced Technology Attachment (Serial ATA or SATA) connectors are for
SATA 3.0 interface allowing up to 6.0Gb/s data transfer rate. It is a computer bus
interface for connecting to devices such as hard disk drive.
Pin
Signal
1
GND
2
SATA_TX+
3
SATA_TX-
4
GND
5
SATA_RX-
6
SATA_RX+
7
GND
2.4.12
SMBus Header (CN31)
The CN31 (5x1-pin p=2.00mm) is for SMBus (System Management Bus) interface.
Pin
Signal
1
SMB_SCL
3
GND
5
+5V
2.4.13
Voltage Monitor Header (CN32)
The CN32 (8x1-pin p=2.54mm) is for voltage monitoring only. It doesn't supply power.
Pin
Signal
1
GND
3
VCC5_SB
5
-5V
7
-12V
Board and Pin Assignments
Pin
Signal
2
N/C
4
SMB_SDA
Pin
Signal
2
GND
4
+3.3V
6
+5V
8
+12V
IMB502 LGA1151 ATX Motherboard
17
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