Jetway JBC373F38W Atom D525 Fanless Appliance

Note: Requires AstLinux 1.x

This barebone appliance is also known by the Jetway Part No: HBJC373F38 / HBJC373F38W

Board Specifications: JBC373F38 / JBC373F38W

AstLinux Board Type:

  • “genx86_64” (VGA video console)
  • “genx86_64-serial” (19200 baud serial console)

Complete System Recommended Options:

  • Memory: 204-pin DDR3 1333 SO-DIMM 2GB (requires 1Rx8 or 2Rx8, not 1Rx16 or 2Rx16)
  • Flash Storage: Industrial Compact Flash 2 GB or mSATA SSD or 2.5” SATA SSD
  • Included:
    • Fanless Case
    • AC Power Adapter (brick)
    • SATA data/power cable for 2.5“ SSD (remove cable if not being used)

Note → The JBC373F38W model includes a Mini PCI-e WiFi card, which should be removed. The corresponding antenna jack/cable may also be removed.

Tip → Ten (10) small screws must be removed to open the case fully. When closing the case be sure to guide the front panel LED's into the case holes.

Total System Power: 15 Watts when idle.

Performance: 48.5 secs. (Maximum OpenVPN: 66 Mbps)

openvpn --genkey --secret /tmp/secret
time openvpn --test-crypto --secret /tmp/secret --verb 0 --tun-mtu 20000 --cipher aes-256-cbc




WDMODULE="iTCO_wdt"  # Optional Watchdog

ALERT_SOUNDS="startup shutdown"  # Optional Sounds


# libsensors configuration file
# -----------------------------
# Jetway JBC373F38W Atom D525 Fanless Networking Barebone

chip "f71882fg-*" "f71869a-*"

ignore in2
ignore in3

ignore fan1
ignore fan2
ignore fan3

ignore temp1

label in0 "3.3V"
label in1 "VCORE"
label in4 "VDIMM"
label in5 "5V"
label in6 "12V"
label in7 "3VSB"
label in8 "Vbat"

label temp2 "SYS Temp"
label temp3 "CPU Temp"

compute in0 @*2, @/2
compute in4 @*(1.5), @/(1.5)
compute in5 @*(3.7), @/(3.7)
compute in6 @*(11), @/(11)
compute in7 @*2, @/2
compute in8 @*2, @/2

Only if a Compact Flash card is used, and it supports DMA, much higher disk performance can be obtained by enabling LIBATA DMA for Compact Flash. Enable from the CLI by issuing the following command:

set-kcmd libata.dma=5

Serial Console COM Port:

If the board type of “genx86_64-serial” is used, you can change the serial console from the default, rear COM port to the front panel COM port. From the CLI issue the following command:

setconsole-speed-tty 19200 ttyS1

Revert back to the default rear COM port with the command:

setconsole-speed-tty reset

Tip → A reboot is required for either change to take effect.

BIOS Setup for Auto-Power-On after Power Failure:

The Energy-Related Products Directive (ERP) is the European Commission Directive required for products sold and exported to the EU. As such the Jetway JBC373F38W does not automatically power back on after a power failure. Obviously this feature needs to be disabled.

On startup press the <DEL> key to enter the BIOS Setup, go to the “Power Management Setup” → “ERP Function” . Make the following changes…

  • ERP Function → Disabled
  • PWR Status after PWR Failure → Always On

The results should like the following screen…

Power BIOS

Save the above BIOS changes, reboot.


Inside 1

Inside 2