====== Qotom Q190G4N-S07 Celeron J1900 Fanless Appliance ======

!!Note: AstLinux 1.2.10 or later is required!!

**Board Specifications:**  [[http://doc.astlinux-project.org/_media/userdoc:qotom-q190g4n-s07-motherboard-manual.pdf|Q1900G4 Nano Motherboard]]

**Vendor:** [[http://www.qotom.net/product/36.html|Product Page]] ((there is also a nearly identical [[http://www.qotom.net/product/35.html|Q190G4U]] version in a slightly different design))

**AstLinux Board Type:**

  * "genx86_64" (Video Console: VGA)

**Complete System Recommended Options:**

  * Memory: 204-pin DDR3L (1.35V) 1333/1600 SO-DIMM 2GB
  * Storage: mSATA SSD (PC Engines msata16 “Phison” or similar)

**Total System Power (no VGA connection):**  7 Watts when idle.

**Performance:**  28.2 secs. (Single-core test, lower is better)

  time ( echo "scale=3456; 4*a(1)" | bc -l )

**Configuration:**


''/mnt/kd/rc.conf.d/user.conf''

  SENSEMODS="coretemp"
  
  ## Optional USB TTY serial login
  USBTTY="yes"
  USBTTY_BAUD_RATE="115200"

!!More Info ->!!
**[[userdoc:usbtty_serial_login|USB TTY Serial Login]]**

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''/mnt/kd/sensors.conf''

  # libsensors configuration file
  # -----------------------------
  # Qotom Q190G4N-S07
  
  # coretemp CPU sensor

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**BIOS Setup for Restore AC Power Loss:**

The Energy-Related Products Directive (ERP) is the European Commission Directive required for products sold and exported to the EU.  As such the Qotom Q190G4N-S07 does not automatically power on after a power failure.  Obviously this //feature// needs to be disabled.

On startup (quickly) press the <DEL> key to enter the BIOS Setup, go to the "Advanced" -> "ACPI Settings" .  Make the following changes...

  * ''Restore AC Power Loss -> Power On''

The results should like the following screen...

{{:userdoc:qotom-q190g4n-s07-bios-power-on.png?nolink|BIOS Power On}}

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**BIOS Setup for Boot OS Selection (non-UEFI):**

While in the BIOS Setup as above, check to make sure Legacy Win7 boot is enabled, go to the "Boot" menu...

  * ''Boot OS Selection -> Legacy Win7''

The results should like the following screen...

{{:userdoc:qotom-q190g4n-s07-bios-legacy-boot.png?nolink|BIOS Legacy Boot}}

Save the above BIOS changes, reboot.

!!Note:!! On newer BIOS versions (12/2018) you might need to make the following changes, if you can't boot the AstLinux installation from an USB stick:

In "Chipset/South Bridge/USB Configuration":

  * ''XHCI Mode -> Disabled''
  * ''USB 2.0(EHCI) Support -> Enabled''

If the mSATA was pre-installed (with e.g. PFSense) you also need to setup the Boot Priorities for the USB stick correctly on the "Boot" page.\\ 
Or you can choose a temporary Boot-Device at the „Save & Exit“ tab under „Boot Override“ at the bottom (instead of a Boot-Menu).

!!Update:!! To activate the boot menu, press F11 (or F7 on some models).

**Photos:**

{{:userdoc:qotom-q190g4n-s07-network.jpg?nolink|Network}}

{{:userdoc:qotom-q190g4n-s07-front.jpg?nolink|Front}}

{{:userdoc:qotom-q190g4n-s07-inside.jpg?nolink|Inside}}

**Qotom Q190G4U (alternative model)**

{{:userdoc:qotom-q190g4u-s01-back.jpg?nolink&650|Q190G4U Back}}

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