Changes
== I can't turn on the computer, it doesn't wake up? ==
* Please use the [[Airtop2 LED behavior description]] for further diagnostics.
'''LED Diagnostics feature is available only for models configured the with FM-AT2 FACE module'''
===1. Check power supply (PSU)===
*Verify Make sure the LED on the power supply brick is lit.*Make sure the DC cable is not damaged and functions connected properlyto the machine.*If you have another power supply use it Make sure the AC cord is properly plugged to eliminate both sides (power brick and determine to the failing sidewall).*In case you use other power supply make sure it provides uninterrupted power and stable groundingTry to plug the DC cable to the alternative DC socket on the Airtop2.
===2. Check memory (RAM)===
*Verify RAM modules are installed. The system will not boot without it.*Also Swapping DIMMS with a good known working ones could eliminate memory stick issues. '''diagnostic LED-(R (RAM)''' This LED turns lit <span style="background:greenGreen">Green</span>, the moment the memory initialization is successful*. This LED is *If lit in <span style="background:yellow">Yellow</span> while the it means memory initialization is has failed.*Verify RAM modules seated correctly and firmly in progresstheir respective sockets. If the *Try to eliminate faulty memory initialization has failed, for example: There is no DIMM installed / the DIMM is not supported - the R LED will stay <span style="background:yellow">Yellow</span>. The R-LED should stay <span style="background:Green">Green</span> at normal operation, also after BIOS POST is oversticks by swapping them with one another.
'''*LED Diagnostics feature is available only for models configured the with FM-AT2 FACE module'''
===3. Check Peripherals (HDD/SSD/USB)===
*Mount the disks cartridge and close the door.
*Plug the power and power up the PC (either auto-on or pressing power button).
[[File:Airtop2-bios-reset.gif]]
'''LED-B (BIOS)*'''
This LED is <span style="background:yellow">Yellow</span> after display initialization.
If BIOS setup menu is needed, the DEL button is functional from the moment the B-LED is <span style="background:yellow">Yellow</span>.
The B-LED is <span style="background:Green">Green</span> when the OS takes charge of the system.
== I don't have any display output, there's nothing on the screen? ==
===1.Screen functionalityand connectivity===* Make sure both power and display cables are connected firmly on both sides.* Advise the H(Hdmi)/D(Display port) LEDS, <span style="background:Green">Green</span> means the cable is connected to the monitor properly.** Make sure the screen is turned on On and works properlyis functioning.* The best way to check if plugging it screen functionality is by connecting to a good known working machine.
