Hey guys,

i have this supermicro AS -E301-9D-8CN4, always work really well no issue last 1.5 years but the other day, i reboot it and never cameback...

I look at the manual "how to reset the cmos" thinking it will help but either im not doing propely or it does nothing... https://www.supermicro.com/en/Aplus/system/Embedded/AS-E301-9D-8CN4.cfm

from the manual:

CMOS Clear

JBT1†is†used†to†clear†CMOS¨†which†will†also†clear†any†passwordsƆInstead†of†pins¨†this†jumper

consists of contact pads to prevent accidentally clearing the contents of CMOS.

To Clear CMOS

1. First power down the system and unplug the power cord(s).

2. Remove the cover of the chassis to access the motherboard.

3. Remove the onboard battery from the motherboard.

4. Short†the†CMOS†pads†with†a†metal†object†such†as†a†small†screwdriver†for†at†least†four

seconds.

5. Remove the screwdriver (or shorting device).

6. Replace the cover, reconnect the power cord(s) and power on the system.

All good except #4, i use a screwdriver and to "short" it but not 100% it did anything

When i start the system... the light are green and fan starts... i can connect to the IPMI web console but, no "interface", the vga or the html5 console have no signal...

If i go to the IPMI POST Snooping options, it give me the code b5 if i leave 1 stick of ram and 10 if i remove everything ( i also remove any card expension (network), ram, nvme and ssd) - i have difficulty to find any info re this BIOS and those code...

I also notice that the hardware info is wrong... like it hasnt refreshed, at the moment only 1 stick of ram is connected but "it sees" 4 sticks, like when the system was fully operational...

I also noticed that the usb keyboard doesnt work... (usually i will notice it light up rgb when server start or after a few seconds...)

So what now? any suggestion on the next steps? is the board now faulty?

thanks!