Avalue Technology BMX-T540 User manual

Part No. E2017BM40A1R
BMX-T540
Mini ITX Barebone System with Intel® C246P Chipset
Quick Reference Guide
2nd Ed –23 June 2021
Copyright Notice
Copyright 2021 Avalue Technology Inc., ALL RIGHTS RESERVED.

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FCC Statement
THIS DEVICE COMPLIES WITH PART 15 FCC RULES. OPERATION IS
SUBJECT TO THE FOLLOWING TWO CONDITIONS:
(1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE.
(2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED INCLUDING
INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION.
THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO COMPLY WITH THE LIMITS
FOR A CLASS "A" DIGITAL DEVICE, PURSUANT TO PART 15 OF THE FCC RULES.
THESE LIMITS ARE DESIGNED TO PROVIDE REASONABLE PROTECTION AGAINST
HARMFUL INTERFERENCE WHEN THE EQUIPMENT IS OPERATED IN A
COMMERCIAL ENVIRONMENT. THIS EQUIPMENT GENERATES, USES, AND CAN
RADIATE RADIO FREQUENCY ENERGY AND, IF NOT INSTATLLED AND USED IN
ACCORDANCE WITH THE INSTRUCTION MANUAL, MAY CAUSE HARMFUL
INTERFERENCE TO RADIO COMMUNICATIONS.
OPERATION OF THIS EQUIPMENT IN A RESIDENTIAL AREA IS LIKELY TO CAUSE
HARMFUL INTERFERENCE IN WHICH CASE THE USER WILL BE REQUIRED TO
CORRECT THE INTERFERENCE AT HIS OWN EXPENSE.
A Message to the Customer
Avalue Customer Services
Each and every Avalue’s product is built to the most exacting specifications to ensure
reliable performance in the harsh and demanding conditions typical of industrial
environments. Whether your new Avalue device is destined for the laboratory or the factory
floor, you can be assured that your product will provide the reliability and ease of operation
for which the name Avalue has come to be known.
Your satisfaction is our primary concern. Here is a guide to Avalue’s customer services. To
ensure you get the full benefit of our services, please follow the instructions below carefully.
Technical Support
We want you to get the maximum performance from your products. So if you run into
technical difficulties, we are here to help. For the most frequently asked questions, you can
easily find answers in your product documentation. These answers are normally a lot more
detailed than the ones we can give over the phone. So please consult the user’s manual
first.
To receive the latest version of the user’s manual; please visit our Web site at:
http://www.avalue.com.tw/

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Content
1. Getting Started............................................................................................................6
1.1 Safety Precautions ................................................................................................6
1.2 Packing List...........................................................................................................6
1.3 System Specifications ...........................................................................................7
1.4 System Overview.................................................................................................10
1.4.1 Front/Rear View ........................................................................................................................ 10
1.5 System Dimensions.............................................................................................11
2. Hardware Configuration...........................................................................................12
2.1 BMX-T540 connector mapping............................................................................13
2.1.1 Serial port 1~6 connector (COM1~6)........................................................................................ 13
2.1.2 VGA connector (VGA1)............................................................................................................. 13
2.2 Installing Mounting Brackets................................................................................14
3.BIOS Setup....................................................................................................................15
3.1 Introduction..........................................................................................................16
3.2 Starting Setup......................................................................................................16
3.3 Using Setup.........................................................................................................17
3.4 Getting Help.........................................................................................................18
3.5 In Case of Problems............................................................................................18
3.6 BIOS setup..........................................................................................................19
3.6.1 Main Menu................................................................................................................................. 19
3.6.1.1 System Language ............................................................................................................. 20
3.6.1.2 System Date...................................................................................................................... 20
3.6.1.3 System Time ..................................................................................................................... 20
3.6.2 Advanced Menu ........................................................................................................................ 20
3.6.2.1 CPU Configuration ............................................................................................................ 21
3.6.2.1.1 CPU - Power Management Control................................................................................... 22
3.6.2.2 PCH-FW Configuration...................................................................................................... 23
3.6.2.2.1 OEM Flags Settings .......................................................................................................... 24
3.6.2.2.2 Firmware Update Configuration ........................................................................................ 24
3.6.2.3 Trusted Computing............................................................................................................ 25
3.6.2.4 ACPI Settings.................................................................................................................... 25
3.6.2.5 Super IO Configuration...................................................................................................... 26
3.6.2.5.1 Serial Port 1 Configuration................................................................................................ 27
3.6.2.5.2 Serial Port 2 Configuration................................................................................................ 27
3.6.2.5.3 Serial Port 3 Configuration................................................................................................ 28

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3.6.2.5.4 Serial Port 4 Configuration................................................................................................ 28
3.6.2.5.5 Serial Port 5 Configuration................................................................................................ 29
3.6.2.5.6 Serial Port 6 Configuration................................................................................................ 29
3.6.2.6 NCT6106D H/W Monitor ................................................................................................... 30
3.6.2.6.1 Smart Fan Configuration................................................................................................... 30
3.6.2.7 S5 RTC Wake Settings ..................................................................................................... 32
3.6.2.8 Serial Port Console Redirection........................................................................................ 32
3.6.2.8.1 Legacy Console Redirection Settings............................................................................... 33
3.6.2.9 USB Configuration............................................................................................................. 34
3.6.2.10 Network Stack Configuration............................................................................................. 35
3.6.2.11 NVMe Configuration.......................................................................................................... 35
3.6.3 Chipset ...................................................................................................................................... 36
3.6.3.1 System Agent (SA) Configuration ..................................................................................... 36
3.6.3.1.1 Memory Configuration....................................................................................................... 37
3.6.3.1.2 Graphics Configuration...................................................................................................... 38
3.6.3.1.3 DMI/OPI Configuration...................................................................................................... 38
3.6.3.1.4 PEG Port Configuration..................................................................................................... 39
3.6.3.1.4.1PEG Port Feature Configuration ....................................................................................... 40
3.6.3.2 PCH-IO Configuration ....................................................................................................... 40
3.6.3.2.1 PCI Express Configuration................................................................................................ 41
3.6.3.2.1.1Intel I211 LAN Chip (PCI-E Port 6) ................................................................................... 41
3.6.3.2.1.2M.2 KeyE (PCI-E Port 7~8)............................................................................................... 42
3.6.3.2.1.3Intel I211/I210 LAN Chip (PCI-E Port 11) ......................................................................... 43
3.6.3.2.1.4Intel I211/I210 LAN Chip (PCI-E Port 12) ......................................................................... 44
3.6.3.2.1.5M.2 KeyM (PCI-E Port 21~24) .......................................................................................... 45
3.6.3.2.2 SATA And RST Configuration........................................................................................... 46
3.6.3.2.3 HD Audio Configuration .................................................................................................... 47
3.6.3.3 Board Configuration .......................................................................................................... 47
3.6.4 Security ..................................................................................................................................... 48
3.6.4.1 Secure Boot............................................................................................................................... 49
3.6.4.1.1 Restore Factory Keys........................................................................................................ 50
3.6.4.1.2 Key Management.............................................................................................................. 51
3.6.5 Boot........................................................................................................................................... 52
3.6.6 Save & Exit................................................................................................................................ 53
3.6.5.1 Save Changes and Reset ................................................................................................. 53
3.6.5.2 Discard Changes and Reset ............................................................................................. 53
3.6.5.3 Restore Defaults................................................................................................................ 54
3.6.5.4 Launch EFI Shell from filesystem device.......................................................................... 54
4. Drivers Installation.......................................................................................................55
4.1 Install Chipset Driver ...........................................................................................56

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4.2 Install VGA Driver................................................................................................57
4.3 Install LAN Driver.................................................................................................58
4.4 Install Audio Driver (For Realtek ALC662 HD Audio) ..........................................60
4.5 Install ME Driver..................................................................................................61
4.6 Install RST Driver ................................................................................................62
4.7 Install Serial IO Driver..........................................................................................64

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1. Getting Started
1.1 Safety Precautions
Warning!
Always completely disconnect the power cord from your
chassis whenever you work with the hardware. Do not
make connections while the power is on. Sensitive
electronic components can be damaged by sudden power
surges. Only experienced electronics personnel should
open the PC chassis.
Caution!
Always ground yourself to remove any static charge before
touching the CPU card. Modern electronic devices are very
sensitive to static electric charges. As a safety precaution,
use a grounding wrist strap at all times. Place all electronic
components in a static-dissipative surface or static-shielded
bag when they are not in the chassis.
1.2 Packing List
1 x BMX-T540 Barebone system
Accessories:
—8 x HDD Screw
—8 x Rubber foot

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1.3 System Specifications
System
Mother Board
EMX-C246P
CPU
Intel® LGA1151 Socket Supports 8/9th Generation Core™ Pentium® /
Celeron /i7/ i5/ i3 Processors (Max. TDP at 95W)
Intel® Xeon® Processor E3-2000 Family (Workstation)
Intel® C246 Chipset)
CPU Cooler (Type)
Cooler fan
Memory
2 x 260-pin DDR4 2400/2666MHz SO-DIMM socket, supports up to 64GB
Max (non ECC only)
Power Supply
ATX Power (400W)
Adapter
Power Win, 150W 24V/6.5A Power Din Adapter
System Fan
1 x System Fan
Microphone
1 x Line out, 1 x Mic in (optional)
Speaker
2 x 3W Speaker(optional)
Wireless LAN
M.2 WiFi Module Optional with 2 SAM connector
Operating System
Win10, Linux
Storage
Hard Disk Drive
2 x 2.5” HDD/SSD
Solid State Drive
Supported
Other Storage Device
EMX-C246P board :
1 x M.2 (2242/2260/2280) M-Key, support Intel RST, PCI-e x4 SSD
External I/O
PS/2 KB & Mouse
Yes
Serial Port
6 x COM (default RS232)
* 2 of 6 COM can be replaced RS232/422/485 by BIOS (OEM demand)
USB Port
8 x USB 3.1 Gen 1, 4 x USB2.0 (2x in front IO, 2x in Rear I/O by cable from
main board), 1 x PS/2 Keyboard & Mouse Combo Jack
DIO Port
16bits GPIO internal
Video Port
2 x HDMI,VGA
Audio Port
1 x Line-out, 1 x Mic-in (optional)
LAN Port
1 x Intel® I219LM Gigabit Ethernet PHY, 3 x Intel® I210AT PCI-e Gigabit
Ethernet
Wireless LAN Antenna
Optional: 2 x Wireless LAN Antenna
Switch
1 x Power-on Switch
Indicator Light
1 x HDD LED
1 x Power LED

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Expansion Slots
AUX-069 : PCIe x1 to 2 PCI slot Riser card
AUX-070 :PCIe x16 to 1 PCI + 1 PCIe x8 with x16
AUX-075 : PCI-ex16 to 2PCI-e x8 with x16 slot Riser Card
1 x PCI-e x 16 to PCI-ex16 Riser Card
Mechanical
Power Type
AT/ATX Mode (Default: ATX mode)
Power Connector Type
AC in
Dimension
107(H) X 372(W) X 307(D) (mm)
Weight
6.4kg packed
Color
Black
OS Support
Win10, Linux
Reliability
EMI Test
CE/FCC : Class B (Nice to have)
Safety
Avalue Standard
Dust and Rain Test
Avalue Standard
Vibration Test
Random Vibration Operation:
1. PSD: 0.03622G²/Hz , 1.5 Grms
2. operation mode
3. Test Frequency : 5-500Hz
4. Test Axis : X,Y and Z axis
5. 30 minutes per each axis
6. IEC 60068-2-64 Test:Fh
7. Storage : SSD
Sine Vibration test (Non-operation)
1 Test Acceleration : 2G
2 Test frequency : 5~500 Hz
3 Sweep：1 Oct/ per one minute. (logarithmic)
4 Test Axis : X,Y and Z axis
5 Test time :10 min. each axis
6 System condition : Non-Operating mode
7. Reference IEC 60068-2-6 Testing procedures
Package vibration test
1. PSD: 0.026G²/Hz , 2.16 Grms
2. Non-operation mode
3. Test Frequency : 5-500Hz
4. Test Axis : X,Y and Z axis
5. 30 min. per each axis

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6. IEC 60068-2-64 Test:Fh
Mechanical Shock Test
1. Wave form：Half Sine wave
2. Acceleration Rate：10g for operation mode
3. Duration Time：11ms
4. No. of Shock：Z axis 300 times
5. Test Axis: Z axis
6. Operation mode
7. Reference IEC 60068-2-29 Testing procedures
Test Eb : Bump Test
Drop Test
Package drop test
1 One corner , three edges, six faces
2 ISTA 2A, IEC-60068-2-32 Test:Ed
Operating Temperature
0~40°C (32˚F ~ 104˚F) w/ SSD, ambient w/ 0.5m/s air flow
Operating Humidity
40°C @ 95% Relative Humidity, Non-condensing
Storage Temperature
-40°C ~ 75°C (-40 ~ 167°F)
Note: Specifications are subject to change without notice.

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1.4 System Overview
1.4.1 Front/Rear View
Connectors
Label
Function
ATXPWR2
ATX Power connector
PS2USB1
PS2+USB connector
LAN1/2/3/4
2 x RJ-45 with Dual deck USB 3.0 connector
COM1~6
Serial port 1~6 connector
HDMI1/2
HDMI connector
VGA1
VGA connector
Ext. ON/OFF
Power on button

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1.5 System Dimensions
(Unit: mm)

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2.Hardware
Configuration
Jumper and Connector Setting
For advanced information, please refer to:
1- EMX-C246P User’s Manual
Note: If you need more information, please visit our website:
http://www.avalue.com.tw

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2.1 BMX-T540 connector mapping
2.1.1 Serial port 1~6 connector (COM1~6)
Signal
PIN
PIN
Signal
DCD
1
6
DSR
RXD
2
7
RTS
TXD
3
8
CTS
DTR
4
9
RI
GND
5
2.1.2 VGA connector (VGA1)
PIN
Signal
PIN
Signal
PIN
Signal
1
RED
6
GND
11
NC
2
GREEN
7
GND
12
DDCDAT
3
BLUE
8
GND
13
HSYNC
4
NC
9
+5V
14
VSYNS
5
GND
10
GND
15
DDCCLK
COM4 6
COM5 6
COM6 6
COM1 6
COM2 6
COM3 6

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2.2 Installing Mounting Brackets
Step1. Remove 6 screws from rear and each side before removing back cover.
Step2. Secure HDD by means of 10 screws.
Step3. Re-assemble your system back through previous steps to complete the installation.

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3.BIOS Setup

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3.1 Introduction
The BIOS setup program allows users to modify the basic system configuration. In this
following chapter will describe how to access the BIOS setup program and the
configuration options that may be changed.
3.2 Starting Setup
The AMI BIOS™ is immediately activated when you first power on the computer. The BIOS
reads the system information contained in the NVRAM and begins the process of checking
out the system and configuring it. When it finishes, the BIOS will seek an operating system
on one of the disks and then launch and turn control over to the operating system.
While the BIOS is in control, the Setup program can be activated in one of two ways:
By pressing <Del> or <F2> immediately after switching the system on, or
By pressing the <Del> or <F2> key when the following message appears briefly at the
left-top of the screen during the POST (Power On Self Test).
Press <Del> or <F2> to enter SETUP
If the message disappears before you respond and you still wish to enter Setup, restart the
system to try again by turning it OFF then ON or pressing the "RESET" button on the
system case. You may also restart by simultaneously pressing <Ctrl>, <Alt>, and <Delete>
keys. If you do not press the keys at the correct time and the system does not boot, an error
message will be displayed and you will again be asked to.
Press F1 to Continue, DEL to enter SETUP

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3.3 Using Setup
In general, you use the arrow keys to highlight items, press <Enter> to select, use the
PageUp and PageDown keys to change entries, press <F1> for help and press <Esc> to
quit. The following table provides more detail about how to navigate in the Setup program
using the keyboard.
Button
Description
↑
Move to previous item
↓
Move to next item
←
Move to the item in the left hand
→
Move to the item in the right hand
Esc key
Main Menu -- Quit and not save changes into NVRAM
Status Page Setup Menu and Option Page Setup Menu -- Exit current page and
return to Main Menu
+ key
Increase the numeric value or make changes
- key
Decrease the numeric value or make changes
F1 key
General help, only for Status Page Setup Menu and Option Page Setup Menu
F2 key
Previous Values.
F3 key
Optimized defaults
F4 key
Save & Exit Setup
Navigating Through The Menu Bar
Use the left and right arrow keys to choose the menu you want to be in.
Note: Some of the navigation keys differ from one screen to another.
To Display a Sub Menu
Use the arrow keys to move the cursor to the sub menu you want. Then press
<Enter>. A “” pointer marks all sub menus.

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3.4 Getting Help
Press F1 to pop up a small help window that describes the appropriate keys to use and the
possible selections for the highlighted item. To exit the Help Window press <Esc> or the F1
key again.
3.5 In Case of Problems
If, after making and saving system changes with Setup, you discover that your computer no
longer is able to boot, the AMI BIOS supports an override to the NVRAM settings which
resets your system to its defaults.
The best advice is to only alter settings which you thoroughly understand. To this end, we
strongly recommend that you avoid making any changes to the chipset defaults. These
defaults have been carefully chosen by both BIOS Vendor and your systems manufacturer
to provide the absolute maximum performance and reliability. Even a seemingly small
change to the chipset setup has the potential for causing you to use the override.

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3.6 BIOS setup
Once you enter the Aptio Setup Utility, the Main Menu will appear on the screen. The Main
Menu allows you to select from several setup functions and exit choices. Use the arrow
keys to select among the items and press <Enter> to accept and enter the sub-menu.
3.6.1 Main Menu
This section allows you to record some basic hardware configurations in your computer and
set the system clock.

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3.6.1.1 System Language
This option allows choosing the system default language.
3.6.1.2 System Date
Use the system date option to set the system date. Manually enter the day, month and
year.
3.6.1.3 System Time
Use the system time option to set the system time. Manually enter the hours, minutes and
seconds.
Note: The BIOS setup screens shown in this chapter are for reference purposes
only, and may not exactly match what you see on your screen.
Visit the Avalue website (www.avalue.com.tw) to download the latest
product and BIOS information.
3.6.2 Advanced Menu
This section allows you to configure your CPU and other system devices for basic operation
through the following sub-menus.