Maxtang FP20 User manual

FP20 Mini ITX Motherboard

Copyright
© 2021 Shenzhen Maxtang Computer Co., Ltd. All rights reserved. No part of this publication may be reproduced,
copied, stored in a retrieval system, translated into any language, or transmitted in any form or by any means,
electronic, mechanical, photocopying, or otherwise, without the prior written consent of Shenzhen Maxtang
Computer Co., Ltd (hereinafter referred to as “Maxtang”).
Disclaimer
Maxtang reserves the right to make changes and improvements to the products described in this document without
prior notice. Every effort has been made to ensure the information in the document is correct; however, Maxtang
does not guarantee this document is error-free.
Maxtang assumes no liability for incidental or consequential damages arising from misapplication or inability to use
the product or the information contained herein, nor for any infringements of rights of third parties, which may result
from its use.
Trademarks
All the trademarks, registrations, and brands mentioned herein are used for identification purposes only and may be
trademarks and/or registered trademarks of their respective owners.

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FP20 User Manual
(Version 0.5)
Version:
No.
Description
Issue Date:
V0.5
Initial version.
2021/12/29

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Content
FP20 User Manual.................................................................................................................................................1
Chapter 1 Product Introduction............................................................................................................................3
1.1 Brief Introduction....................................................................................................................................3
1.2 Parameters..............................................................................................................................................3
1.3 Connector Diagram .................................................................................................................................4
Chapter 2 Hardware..............................................................................................................................................5
2.1 Jumper Setting ........................................................................................................................................5
2.2 Memory Slots..........................................................................................................................................5
2.3 Display.....................................................................................................................................................5
2.4 Storage (Screen Printing：SATA, M.2_N, PWSATA).................................................................................5
2.5 Expansion (Screen Printing：M.2_E)......................................................................................................5
2.6 USB Interface...........................................................................................................................................5
2.7 LAN..........................................................................................................................................................5
2.8 Audio (Screen Printing：FP_AUDIO, JAUD) ............................................................................................6
2.9 COM (Screen Printing：COM1, COM2, COM36) ....................................................................................6
2.10 GPIO Pin(Screen Printing：GPIO) .........................................................................................................8
2.11 System Fan(Screen Printing：SYS_FAN)................................................................................................8
2.12 CPU FAN(Screen Printing：CPU_FAN1) ................................................................................................8
2.13 Board Power Supply(Screen Printing：PWR1, PWR2)..........................................................................9
2.14 Panel Switch Pin(Screen Printing：JPOWER)........................................................................................9
2.15 Hardware Auto Start (Screen Printing：JAT) ........................................................................................9
2.16 CMOS Clearance/Retention (Screen Printing：CLR_CMOS).................................................................9

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Chapter 1 Product Introduction
1.1 Brief Introduction
The FP20 ITX motherboard is based on AMD FP5 series processors.
1.2 Parameters
CPU: Ryzen V1605B--Quad Core, Base Freq. 2GHz, Max Freq. 3.6GHz, TDP 12-25W
Memory: Dual Channel SO-DIMM DDR4 up to 32GB, maximum frequency 2400MHz.
GPU: Integrated graphics based on CPU, display via 2x HDMI2.0, 1x DVI-D, 1x VGA.
Storage: 1 x M.2 Key M for 2242/2280 SSD NVMe (SATA optional), 1x Standard SATA3.0
USB: 3x USB3.2 Gen1(2*ports+1*headers); 8xUSB2.0(2*ports+6*headers)
Ethernet: 2x onboard Gigabit Network Cards (Realtek RTL8111H)
Audio: High-resolution audio chip, rear Line-out, Mic-in, Line-in, front Line-out, Mic-in (onboard pins); power
amplifier (onboard pins, connects to passive speakers)
COM: 6xRS232 serial ports (RS485 is optional for COM2)
Expansion: 1 x M.2 Key E 2230 for Wi-Fi
Dimensions: 170mm x 170mm
Power: 12V/19V DC-in
Working temperature: -20℃~60℃

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1.3 Connector Diagram
DC_IN
PWR2
2*HDMI2.0
VGA+DVI-D
1*USB3.2
LAN1+2*USB3.2
LAN2+2*USB2.0
Audio
M.2_SSD
JAUD
FP-AUDIO
PWSATA
SATA
GPIO
2*USB2.0
LAN_LED
COM1
JPOWER
COM4_P
SODIMM
M.2 WIFI
COM2_P
SYS_FAN
CPU_FAN1
COM36
CPU
COM2
2*USB2.0
2*USB2.0

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Chapter 2 Hardware
2.1 Jumper Setting
Please configure the jumpers according to your requirements before installing the hardware.
How to identify the first header of jumpers and pins: Observe the mark beside the jumper or pins and find the
header marked by “1” or bold line or triangular symbol. Or observe the rear panel and the header with a square
solder pad is the first header.
2.2 Memory Slots
On-board 2 x SO-DIMM DDR4-2400 slots, supporting dual channels, maximum capacity 32 GB.
2.3 Display
The board is equipped with 2xHDMI2.0, 1xDVI-D, and 1xVGA for display.
2.4 Storage (Screen Printing: SATA, M.2_N, PWSATA)
It supports a standard SATA3.0, the transmission rate can reach up to 6Gb/s, and is equipped with one hard disk
power supply socket.
Screen Printing as M.2_N should be M.2 Key M; it supports 2242/2280 SSD NVME (SATA optional).
2.5 Expansion (Screen Printing: M.2_E)
Screen Printing M.2_E: M.2 Key E, supporting NGFF WIFI Card.
2.6 USB Interface
The board is equipped with 3xUSB3.2 Gen1(including 2 rear ports and 1 header), 2xUSB2.0 rear ports, and
6xUSB2.0 headers (spacing 2.54mm).
USB:(Screen Printing：F_USB1, F_USB2, F_USB3)
Signal
Pin
Signal
VCC 5V
1
2
VCC 5V
USB DATA-
3
4
USB DATA-
USB DATA+
5
6
USB DATA+
GND
7
8
GND
NC
9
10
(NC)
2.7 LAN
It adopts the high-performance Gigabit Ethernet control chip Realtek RTL8111H, provides 2 RJ45 ports,
(supports Magic packet wake up; LAN1 supports PXE network boot.)
In addition, a set of LAN_LED pins are provided to support the connection of the (orange) status light of the
network port to the chassis panel.
LED Status Indicators：
LILED(Green)Status
Function
ACTLED(Orange)Status
Function

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Always on
Network Connected
Blinking
Data transfer
LAN_LED (Screen Printing: LAN_LED)
Pin
Signal
1
LAN1_D+
2
LAN1_D-
3
LAN2_D-
4
LAN2_D+
2.8 Audio (Screen Printing: FP_AUDIO, JAUD)
Using the ALC897 audio control chip, the green one is the audio output interface (Line-out), the pink one is
the microphone input interface (MIC-in), and the blue one is the audio input interface (Line-in); the JAUD pin is the
power amplifier output.
FP_AUDIO：(Screen Printing：FP_AUDIO)
Signal
Pin
Signal
MIC2-L
1
2
AGND
MIC2-R
3
4
AVCC
FRO-R
5
6
MIC2-JD
F-IO-SEN(AGND)
7
8
(NC)
FRO-L
9
10
LINE2-JD
JAUD (Screen Printing: JAUD)
Pin
Signal
1
L+
2
L-
3
R-
4
R+
2.9 COM (Screen Printing: COM1, COM2, COM36)
The board is equipped with 6 RS232 serial ports. COM1 and COM2 onboard pin spacing: 2.54mm; COM2 can
be set as RS485 optional. The COM2_P, COM4_P provide 5V/12V voltage optional for COM2 and COM4.
COM1 (Screen Printing: COM1)
Signal
Pin
Signal
DCD
1
2
RXD
TXD
3
4
DTR
GND
5
6
DSR

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RTS
7
8
CTS
RI
9
10
(NC)
COM36(Screen Printing: COM36)
Signal
Pin
Signal
DCD#
1
2
RXD
TXD
3
4
DTR#
GND
5
6
DSR#
RTS#
7
8
CTS#
RI#
9
10
NC
DCD#
11
12
RXD
TXD
13
14
DTR#
GND
15
16
DSR#
RTS#
17
18
CTS#
RI#
19
20
NC
DCD#
21
22
RXD
TXD
23
24
DTR#
GND
25
26
DSR#
RTS#
27
28
CTS#
RI#
29
30
NC
DCD#
31
32
RXD
TXD
33
34
DTR#
GND
35
36
DSR#
RTS#
37
38
CTS#
RI#
39
40
NC
COM2 (Screen Printing: COM2)
Pin
RS232
RS485
1
DCD#
DATA-
2
RXD
DATA+
3
TXD
(NC)
4
DTR
(NC)
5
GND
GND
6
DSR
(NC)
7
RTS
(NC)
8
CTS
(NC)
9
RI
(NC)

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COM2_P, COM4_P(Screen Printing: COM2_P, COM4_P)
Interface
Setting
Function
1-2
Close
5V
3-4
Close
RI
5-6
Close
12V
COM2 Mode Setting (Screen Printing: J1, J2)
COM2
RS232
RS485
J1(1-2)
J2(1-3, 2-4)
J1(2-3)
J2(3-5, 4-6)
2.10 GPIO Pin(Screen Printing: GPIO)
The board is equipped with a set of 2x5 Pin as JGPIO pin, (2.0mm spacing), supports 8 programable I/O lanes
in total.
GPIO(Screen Printing: JGPIO)
Signal
Pin
Signal
SIO_GP70
1
2
+3.3VA
SIO_GP71
3
4
SIO_GP74
SIO_GP72
5
6
SIO_GP75
SIO_GP73
7
8
SIO_GP76
GND
9
10
SIO_GP77
2.11 System Fan(Screen Printing: SYS_FAN)
The board provides a system fan socket with a default voltage of 5V, 12V optional.
SYSFAN(Screen Printing: SYS_FAN)
Pin
Signal
1
GND
2
VCC
3
TAC
4
CTL
2.12 CPU FAN(Screen Printing: CPU_FAN1)
The board provides a CPU fan socket with a default voltage of 12V, 5V optional.
CPU_FAN1(Screen Printing: CPU_FAN1)
Pin
Signal
1
VCC
2
GND
3
TAC

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4
CTL
2.13 Board Power Supply(Screen Printing: PWR1, PWR2)
Supports 12V/19V DC-in power adapter or ATX supplementary power (2x2 pin)
2.14 Panel Switch Pin(Screen Printing: JPOWER)
The front control panel interface is supposed to connect to the Function button and indicator on the front
panel of the chassis.
JPOWER(Screen Printing：JPOWER)
Signal
Pin
Signal
HDD_LED+
1
2
PWR_LED+
HDD_LED-
3
4
PWR_LED-
RSTBTN-
5
6
PWR_ON+
RSTBTN+
7
8
PWR_ON-
NC
9
10
(NC)
2.15 Hardware Auto Start (Screen Printing: JAT)
JAT(Screen Printing: JAT)
Settings
JAT
Close
Hardware Auto Start
2.16 CMOS Clearance/Retention (Screen Printing: CLR_CMOS)
The CMOS is powered by the button battery on the board. Clearing CMOS will permanently erase the previous
system settings and set them to the original (factory settings) system settings.
Steps:
(1) Turn off the computer and disconnect the power supply.
(2) Use a jumper cap to short the first and second pins of CLR_CMOS for about 10 seconds, and then
disconnect.
(3) Insert the jumper back into the 2nd and 3rd pins of CLR_CMOS (note that closing 1 and 2 pins are:
CLR_CMOS, closing 2 and 3 pins is: normal power on).
(4) When starting the computer, press the <Del> key to enter the BIOS, load the optimal default values,
save, and exit the settings.
COMS(Screen Printing: CLR_CMOS)
Pin
Settings
Function
1-2
Close
Clear COMS
2-3
Close
Normal Boot
Please do not clear the CMOS when the PC is powered on, in case of board damages. After clearing the
CMOS, the jumper cap must be set back to the 2nd and 3rd pins to boot normally.