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Noah 3b motherboard (2025 evolution)
Intel E3845 AES-NI, 4 cores 1.91 GHz (memory upto 8 GB), 3LAN Gigabit, miniPCIe, 2 mSATA, USB 2.0
Long term availability, until 2032.
The Noah 3b is the 2025 evolution of the Noah3 motherboard.
The additions compared to the Noah3 are as follows:
- Support for 4G/5G communication with the M.2 connector under the motherboard.
- Ability to connect two mSATA drives, making it a fault-resistant system with software RAID supported by FreeBSD, OPNsense, pfsense, Linux, etc.
- Added TPM connector, allowing the installation of a TPM for software that requires it, such as Windows 11.
- Added support for a second miniPCIe slot for 4G/LTE modem (up to 3 x 4G/LTE modems with M.2 slot included).
- Replacement of the Intel I211 network controller with the Intel I210AT, significantly improving network transfer speeds with four transmit/receive queues per port instead of two for the I211.
Noah 3b is reliable and powerful fanless hardware for 24/7 devices and more
- Industrial environment (router, hardware controller, control panel interface, ...)
- Telecom (router, IPBX, VoIP gateway, LTE, WiFi controller, etc.)
- Network (firewall router, aggregator, VPN server, NAS, video surveillance, …)
- Security (VPN server, analyzer, packet inspector, …)
- IoT (gateway, concentrator, on-site controller, on-site analyzer, …)
- Prototyping (proof of concept, Geek hobbyst, …)
- And your equipment, contact us...
Noah3b the replacement alternative for the APU2 board from PC Engines.
The Noah3b was designed with the goal of facilitating the replacement of the PC Engines APU card. All APU users are invited to read our article on the subject.
Controlling LEDs and the push button under Linux
Rack Matrix Technology has developed an open source driver for Linux to manage the 3 LEDs and the push button on the front panel. This driver opens the possibility for all application developers to display different information about their application through the switching on or off of the LEDs as well as an interaction with the push button. We have written an article about its use on our website.
Successfully tested with
Specifications
| Processor System | CPU: Intel Atom E3845 |
| Core: 4 | |
| Frequency: 1.91GHz | |
| L2 Cache: 2MB | |
| BIOS: AMI 64 Mbits | |
| AES: AES-NI | |
| Memory | Technology: DDR3L 1333MHz |
| Max. Capacity: 8 GB (Should be installed in factory) | |
| Socket: 1 x 204 pin SODIMM | |
| Display | HDMI |
| Ethernet | Interface: Up to 3 |
| Controller: Intel I210AT | |
| Connector: RJ45 | |
| WatchDog Timer | Output: System reset |
| Internal Watchdog timer: (programmable 1-255s,1-255min, disable) | |
| Storage | mSATA: 2 x full size mSATA |
| Internal I/O | Up to 3 Serial: 1 x RS-232, |
| Ethernet: Up to 3 GbE | |
| HDMI: 1 | |
| Reset Button: 2 | |
| Power Button: 2 (For system wake) | |
| USB: 4 x USB2.0 (2 internal, 2 in back) | |
| GPIO: 24-bit GPIOs | |
| Expansion |
MINI_PCIE1 slot: mSATA, SIM and USB signal for (4G/LTE). |
| M2BEY5G : M.2 B-key 4G/5G Mux | |
| 2 x COM TTL (Transfer rate up to 1 Mbit/s) | |
| I2C | |
| Power | Power input: 12V ±10% only |
| Power Consumption (Typical,Minimum system) Noah with E3845: 0.5A @ 12V (5.28W) | |
| Power Consumption (Max, test in pfSense) Noah with E3845: 1A @ 12V (12W) | |
| Environment | Operating 0 ~ 60° C (32 ~ 140° F) (Operating humidity: 40° C @ 95% RH non-condensing) |
| Non-Operating -40° C ~ 85° C and 60° C @ 95% RH non-condensing | |
| Physical Characteristics | Dimensions (L x W): 160 x 152.4 mm (6.3" x 6") |
| Weight: 0.45 kg (0.99 lb) (with heatsink) | |
| Total Height: (with cooler + PCB + Bottom) 33mm |
Download: Noah3-E3845 Quick HW Manual v1.0.4.pdf
