DFI GH551 User manual

Board Layout
1
www.dfi.com
Quick Reference
GH551
933-GH5511-000G A-595-Q-2019
M.2 M Key
Front Audio
Speaker
JP9000
JP6
JP1
Battery
JP5
JP4
LVDS Backlight
LED1
LVDS
USB 0/3 (USB 2.0)
SMBus
Buzzer
Mini PCIe
COM1
SATA Power
SATA
CPU Fan
DIO
JP2
USB 5 (USB 2.0)
LAN3
LAN2, USB 3.0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
LAN1, USB 3.0
DP4
DP3
DP2
DP1
26
27
28
29
30
31
32
33
34
33
12
10
1
5
2
2
19
1
1
1
1
210
9
1 2
39 40
1
1
1
1
1
1
1
1
910
2
2
5
6
1
2
5
6
1
1
1
2
3
7
8
9
4
6
5
10
12
11
13
14
15
17
16
33
34
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Heater
12V DC-In
DDR4 (Bottom)
Nano SIM (Bottom)

Jumper Settings
Pin Assignments
2Quick Reference | GH551
8. Front Panel (JP5)
Pin Assignment Pin Assignment
1Power Button 2Power LED VCC
3 GND 4 Power LED
5System Reset 6HDD LED
4. APU Power (JP9000)
Pin Assignment
1 APU_VRM1_SCLK
2 APU_VRM1_SDATA
3 GND
9. Panel Power Select (JP4)
22. Backlight Power Select (JP2) 5. AT/ATX Select (JP6)
1-2 On:
+3V3 (default) 2-3 On: +5V
6. Clear CMOS (JP1)
13. USB 2.0 Ports 32. 12V DC-In
1-2 On: Normal (default)
13 2
2-3 On: Clear CMOS
13 2
1-2 On: +12V
642
531
3-4 On: +5V
642
531
5-6 On: +3.3V (default)
642
531
31 2 31 2
2-3 On:
ATX Mode
1-2 On:
AT Mode (default)
31 2 31 2
VCC
-Data
+Data
GND
Key
VCC
-Data
+Data
GND
N.C.
2
10
1
V1000
only
Pin Assignment
1 GND
2 GND
3 +12V
4 +12V
1
3
2
4

3Quick Reference | GH551
17. COM1
3. Speaker
20. CPU Fan
31. Heater
18. SATA
21. DIO
14. SMBus
19. SATA Power
2. Front Audio
Pin RS232 RS422 RS485
1 DCD- TXD- Data-
2 RD TXD+ Data+
3 TD RXD+ N.C.
4 DTR- RXD- N.C.
5 GND GND GND
6 DSR- N.C. N.C.
7RTS- N.C. N.C.
8CTS- N.C. N.C.
9 RI- N.C. N.C.
Pin Assignment Pin Assignment
1 Mic-L 2 GND
3 Mic-R 4 N.C.
5 Line-Out-R 6 Mic-JD (sense)
7 GND 8 N.C.
9 Line-Out-L 10 Line-JD (sense)
12
10
1
5
2
2
19
1
1
1
1
210
9
1 2
39 40
1
1
1
1
1
1
1
1
910
2
2
5
6
1
2
5
6
1
1
12
10
1
5
2
2
19
1
1
1
1
210
9
1 2
39 40
1
1
1
1
1
1
1
1
910
2
2
5
6
1
2
5
6
1
1
12
10
1
5
2
2
19
1
1
1
1
210
9
1 2
39 40
1
1
1
1
1
1
1
1
910
2
2
5
6
1
2
5
6
1
1
Pin Assignment
1 SPK_Out_L+
2 SPK_Out_L-
3 SPK_Out_R-
4 SPK_Out_R+
+5V
GND
GND
N.C.
1
7
RX-
GND
TX+
TX-
GND
1
RX+
GND
Pin Assignment
1 Ground
2 Power
3 Sense
12
10
1
5
2
2
19
1
1
1
1
210
9
1 2
39 40
1
1
1
1
1
1
1
1
910
2
2
5
6
1
2
5
6
1
1
Pin Assignment Pin Assignment
1 DIO_7 2 DIO_6
3 DIO_3 4 DIO_4
5 DIO_5 6 DIO_2
7 DIO_1 8 DIO_0
9 5VSB 10 GND
12
10
1
5
2
2
19
1
1
1
1
210
9
1 2
39 40
1
1
1
1
1
1
1
1
910
2
2
5
6
1
2
5
6
1
1
Pin Assignment Pin Assignment
1 3V3SB 2 GND
3 SMBus_Clock 4 SMBus_DATA
5 SMBus_Alert 6 ---
12
10
1
5
2
2
19
1
1
1
1
210
9
1 2
39 40
1
1
1
1
1
1
1
1
910
2
2
5
6
1
2
5
6
1
1
Pin Assignment
1 12V
212VSB_PG_SW
12
10
1
5
2
2
19
1
1
1
1
210
9
1 2
39 40
1
1
1
1
1
1
1
1
910
2
2
5
6
1
2
5
6
1
1

DFI reserves the right to change the specifications at any time prior to the
product's release. This QR may be based on editions that do not resemble your
actual products. For more documentation and drivers, please visit the download
page at go.dfi.com/GH551,or via the QR code to the right.
4Quick Reference | GH551
12. LVDS
10. LVDS Backlight
19. SATA Power
Pin Assignment Pin Assignment
1 GND 2 GND
3 LVDSA_Out3+ 4 LVDSB_Out3+
5 LVDSA_Out3- 6 LVDSB_Out3-
7 GND 8 GND
9 LVDSA_Out2+ 10 LVDSB_Out2+
11 LVDSA_Out2- 12 LVDSB_Out2-
13 GND 14 GND
15 LVDSA_Out1+ 16 LVDSB_Out1+
17 LVDSA_Out1- 18 LVDSB_Out1-
19 GND 20 GND
21 LVDSA_Out0+ 22 LVDSB_Out0+
23 LVDSA_Out0- 24 LVDSB_Out0-
25 GND 26 GND
27 LVDSA_CLK1+ 28 LVDSB_CLK1+
29 LVDSA_CLK1- 30 LVDSB_CLK1-
31 GND 32 GND
33 LVDS_DDC_CLK 34 NC
35 LVDS_DDC_DATA 36 +3.3V
37 Panel Power 38 GND
39 Panel Power 40 Panel Power
Pin Assignment Pin Assignment
1 +12V 4 PWM Brightness Control
2 GND 5 5V
3Backlight On/Off
12
10
1
5
2
2
19
1
1
1
1
210
9
1 2
39 40
1
1
1
1
1
1
1
1
910
2
2
5
6
1
2
5
6
1
1
12
10
1
5
2
2
19
1
1
1
1
210
9
1 2
39 40
1
1
1
1
1
1
1
1
910
2
2
5
6
1
2
5
6
1
1