1
RM641-SD Installation Guide
•
1 RM641-SD system unit
•
SATA drive bay kit
Package Contents
Panel
Front View
DFI reserves the right to change the specifi cations at any time prior to the product's release. For the latest revision and more details of
the installation process, please refer to the user's manual.
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Rear View
Power LED
USB 2.0
Reset
Power
HDD LED
keyboard/mouse
USB 2.0
LAN 1-2
USB 3.0
Line-out
Mic-in
DVI-I
(DVI-D signal)
VGA
COM
DC-in Jack
HDMI
2
Removing the Chassis Cover
1. Before removing the chassis cover, make sure the system and all
other peripher
al devices connected to it have been powered-off.
2.
Disconnect all power cords and cables.
3.
Remove the 2 mounting screws to open the top cover.
4. You can install DDR4 DIMMs into the memory sockets. The
system supports dual channel architecture.
Chassis
screw
Chassis
screw
DIMM socket
3
Installing a SATA Drive
1. Unfasten the 4 mounting screws that secure HDD bracket to the
system.
2
. Secure the hard drive to the HDD bracket. Align the mounting
holes of the SATA drive with the mounting holes on the HDD
bracket and then use 4 mounting screws to install the hard driv
e
onto the HDD br
ack
et.
HDD bracket
SATA drive
Mounting screw
Mounting screw
HDD bracket
4
3. Connect the SATA data cable and SATA power cable to the con-
nectors on the SATA drive. Then connect the SATA
data cable to
the S
ATA port on the system board.
SATA port
SATA power and
data connector
5
4. Install the HDD bracket back to the system.
Note:
The system can accommodate 4 disks (3.5” or 2.5”). However, 3.5” to 5.25” or 2.5”
to 5.25” drive mounting bracket adapters will be required to install HDDs in the
optical bays.
Mounting screw
6
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Board Layout and Jumper Settings
RS232/RS422/RS485 Select :
COM1 (JP5), COM2 (JP1)
RS232/RS422/RS485 Select :
COM1 (JP6, JP7), COM2 (JP2, JP3)
RS232 (default) 1-2 On RS232 (default) 1-3, 2-4 On
RS422 Full Duplex 3-4 On
RS422 Full Duplex/RS485 3-5, 4-6 On
RS485 5-6 On
Note:
1. When COM1 RS232/422/485 is selected, JP6 and JP7 must be set in accordance
to JP5.
2. When COM2 RS232/422/485 is selected, JP2 and JP3 must be set in accordance
to JP1.
A44012952
Socket LGA1151
Line-out
Mic-in
LAN 2
USB 4
USB 3
USB 3.0
LAN 1
USB 2
USB 1
USB 3.0
PCIe x16
Battery
Intel
C236/Q170
5
1
62
SMBus
19 19
USB 7-8
USB 2.0
210 210
USB 13-14
1
20
10
11
USB 5-6
USB 3.0
19
USB 9-10
210
SPI Flash
BIOS
DDR4_1
DDR4_2
DDR4_3
DDR4_4
PS/2 KB/MS
USB 6
USB 5
USB 2.0
Auto
Power-on
Select
(JP10)
Standby
Power LED
Battery
Buzzer
S/PDIF
1
COM 1
VGA
DVI-D
HDMI
CPU Fan
1
1
System Fan 1
Digital
I/O
12
19
1
ATX Power
13
12 24
1
12
11 12
Front
Panel
2
1
1314
LPC
1
SATA 1
1
SATA 0
SATA 3.0
1
SATA 3
1
SATA 2
SATA 3.0
1
SATA 5
1
SATA 4
1
210
9
COM 5
1
210
9
COM 6
1
210
9
COM 3
1
210
9
COM 4
1
210
9
COM 2
6
5
2
1
COM 2 RS232/Power
Select (JP4)
PCIe x4
PCIe x4
PCI 1
PCI 2
PCI 3
PCIe x16
1
System
Fan 2
1
2
7
8
LAN LED
SD631-C236: C236
SD631-Q170: Q170
1
2
5
6
1
2
5
6
1
2
5
6
(JP1)
(JP2)
(JP3)
(JP3)
(JP2)
(JP1)
COM 2
RS232/422/485
Select
Chrontel
CH7517A
ASMedia
ASM1442
ASMedia
ASM1442
Intel
WGI219LM
Intel
WGI210AT
Realtek
ALC888
Nuvoton
NCT6106D
ASM1085
+12V
Power
4
8
6
5
2
1
5
6
12
6
5
2
1
6
5
2
1
COM 1
RS232/422/485
Select (JP5)
COM 1 RS232/Power
Select (JP8)
COM 1
RS232/422/485
Select (JP6)
COM 1 RS232/422/485
Select (JP7)
1
5
Clear CMOS
Data (JP9)
1
Chassis
Intrusion
1
RS232 Power Select
JP8 (COM 1)
JP4 (COM 2)
RS232 (def
ault) 1-3 (RI), 2-4 (DCD) On
RS232 with power 3-5 (+5V), 4-6 (+12V) On
Auto Power-on Select JP10
Power-on via power button (default) 1-2 On
P
ower-on via AC power 2-3 On
Clear CMOS Data JP9
Normal (default) 1-2 On
Clear CMOS Data 2-3 On
-
1
-
2
-
3
-
4
-
5
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6
DFI RM641-SD User manual
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