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GETTING TO KNOW YOUR ECS-9755
©Vecow ECS-9755 User Manual
2.4.10 Mini PCIe/mSATA Slot
CN6
CN10
CN12
CN8
SW2
Mini PCIe and mSATA share the same form factor and have similar electrical
pinout assignments on their connectors. There’s no clear mechanism to
distinguish if a mSATA drive or a Mini PCIe device is plugged into the socket
until recently that SATA I/O issued an ECN change (ECN #045) to redefine
pin-43 on mSATA connector as “no connect” instead of “return current path”
(or GND). When mSATA drive is inserted, its pin-43 is “no connect”, and the
respective pin on the socket is being pulled-up to logic 1. When a Mini PCIe
device is inserted, its pin-43 forces the respective pin on the socket to ground,
or logic 0.
SW2 is for switching mSATA drive and Mini PCIe device:
DIP Switch
Interface
SW2-1
Mini PCIe 1
ON
Mini PCIe
OFF
Auto Detection (Default)
SW2-2
Mini PCIe 2
ON
Mini PCIe
OFF
Auto Detection (Default)
SW2-3
Mini PCIe 3
ON
Mini PCIe
OFF
Auto Detection (Default)
SW2-4
Mini PCIe 4
ON
Mini PCIe
OFF
Auto Detection (Default)
No.
Conn.
SIM
mSATA
USB 2.0
Remark
Mini PCIe 1
CN12
SIM1 (CN13)
SATA4
V
Mini PCIe 2
CN8
SIM2 (CN9)
SATA5
V
Mini PCIe 3
CN10
SIM3 (CN11)
SATA6
V
Mini PCIe 4
CN6
SIM4 (CN7)
SATA7
-
Option with SATA4 HDD Connector
SIM Only supports PCIe module
