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Chapter 4: Motherboard Connections
SAS Ports
The X11SCD-F motherboard has two Serial Attached SCSI 3.0 ports (SAS0 and SAS1).
M.2 Slot
There are two M.2 slots on the motherboard. M.2 is formerly known as Next Generation
Form Factor (NGFF). They are designed for internal mounting devices and provide M-Key
2280/22110 support dedicated for SSD devices with the PCI-E 3.0 x4 or SATA 3 interface.
I-SATA 3.0 Ports
The X11SCD-F has two I-SATA 3.0 ports (I-SATA1 - I-SATA4) through the backplane that are
supported by the Intel C246 chipset.
Power Switch
Press the power switch at SW2 to turn on the motherboard.
SGPIO Header
The S-SGPIO1 (Serial General Purpose Input/Output) header is used to communicate with
SAS AOC.
SGPIO Header
Pin Definitions
Pin#
Definition
Pin#
Definition
1
NC
2
DATA In
3
SAS_SEL
4
DATA Out
5
Load
6
Ground
7
Clock
8
NC
I
2
C Bus for VRM
Jumper JVR1 is used for VRM tool programming. JVRM1 allows the BMC or the PCH to
access CPU and memory VRM controllers.
VRM
Jumper Settings
Jumper Setting
Definition
Pins 1-2
BMC (Normal)
Pins 2-3
PCH