MNT Reform RCM4 with A311D Upgrade
Dear MNT Customer ,
thank you for purchasing the MNT RCM4 with A311D
Upgrade, a processor module for your MNT Reform that
offers a significant performance increase. We hope you
will enjoy the enhanced productivity and fun it brings.
Installation
During installation, refer to the pictures on the right side
of this page for guidance.
1.
Remove your previous heatsink and CPU module
from MNT Reform, but keep one end of the MIPI DSI
cable connected to the motherboard. Connect the
other end to the matching connector on the RCM4
module.
2.
Push the module into the CPU slot of your MNT
Reform motherboard at a 45 degree angle and then
press it down until it clicks into place.
3.
Mount the shorter 2 hex M2 standoffs (included) on
the motherboard through the matching holes on
RCM4. Mount the longer 2 hex M2 standoffs on the
remaining 2 heatsink mounting holes on the
motherboard.
4.
Exchange the motherboard screw next to the SD
card slot with the remaining hex standoff. Mount the
acrylic antenna carrier on it using the short M2
screw , as pictured. Attach the WiFi antenna to the
carrier . Attach the antenna connectors to the CM4
module.
5.
Install the included heatsink using the thermal pad
for heat transfer between the CM4's System-on-Chip
and the heatsink. Remove protective foil from the
thermal pad before attaching it. Mount the heatsink
with 4x included M2 screws.
Safety Instructions ⚠
•
The module and the adapter are sensitive electronic
parts that can be damaged by static electricity. Make
sure to ground yourself before touching.
•
Before installation, consult the safety instructions of
MNT Reform and remove all power sources including
batteries from the system.
The product complies with the requirements of the
European Directives and DIN standards:
EMC Directive 2014/30/EU, Low Voltage Directive 2014/35/EU
RoHS Directive 2011/65/EU, DIN EN 55022:2011-12
DIN EN 55024:2016-05, DIN EN 61000-6-1:2007
DIN EN 61000-6-3:2007/A1:2011/AC:2012
,
DIN EN 61000-3-2:2014
DIN EN 61000-3-3:2013
MNT Research GmbH
Fehlerstr. 8, 12161 Berlin
WEEE: DE 33315564
https://mntre.com
Specifications
•
Includes BPi CM4 (Amlogic A311D, 4GB RAM)
•
4x2.2GHz Cortex-A73 + 2x1.8GHz Cortex-A53
•
ARM Mali G52 MP4 (OpenGL/ES 3. 1)
•
RTL8822CS WiFi 5 / Bluetooth 5.0
•
Size: 68x67 .5mm. PCB thickness 1mm.
•
Card Edge Connector: 200 pin SO-DIMM card edge
(mates with TE 1717254-1 or TE 1473005-1)
•
FPC Connectors for: 1x internal HDMI (works only
with Raspberry Pi CM4), 1x MIPI-DSI, 1x MIPI-CSI
Contents
•
RCM4 circuit board with BPi CM4 installed
•
MNT Reform Generic Heatsink (aluminum)
•
2mm thermal pad
•
4x heatsink hex standoffs (2x5mm, 2x6mm)
•
4x heatsink screws
•
Acrylic antenna carrier with hex standoff and screw
•
Complimentary WiFi antenna
•
Complimentary M.2 to mPCIe adapter
PCIe
Please note that CM4 compute modules support only
one PCIe lane. This is routed to the mPCIe slot on the
MNT Reform motherboard, so you will not be able to
use the M.2 slot. T o install your NVMe SSD, use the
included M.2 to mPCIe adapter .
Software and Sources
All MNT Reform Processor Modules use a unified kernel
and Debian GNU/Linux distribution, but each uses a
different bootloader configuration. Download the a311d
image from the following URL, unpack and image it to
an SD card:
https://mnt.re/system-image
Hardware sources, schematics and software
instructions are published at:
https://source.mnt.re/reform/mnt-reform-raspberry-
pi-cm4-som
Warranty
MNT Research covers the warranty to the extent
required by law for the unmodified product and
following the safety instructions. Warranty does not
cover any modifications made to the product.
Get updates and source code at: mntre.com/reform
Need help? Join community.mnt.re or write to
support@mntre.com
Join our IRC channel #mnt-reform on: irc.libera.chat
Need help?
Do you have a question about the Reform RCM4 A311D and is the answer not in the manual?
Questions and answers