I have already 2 running instances of unraid, and they work fine. I tried to install unraid on a true server with 2 CPUs and 48 gigs of memory.

 

The problem is that unraid gets stuck at this screen. Blinking cursor stops and nothing happens anymore

 

I already tried:

Plugging the USB in another slot

disabling fast boot

disabling TPM

Is this a clean install or an existing one?

1 hour ago, JorgeB said:

Is this a clean install or an existing one?

Its a clean new install while having the first boot

See if the same flash drive boots in a different server.

I tried it on my PC and it works. I tried it on a different USB stick (on the server) and it's stuck on blinking Cursor 

That suggests some compatibility issue with Unraid and that server, you can try a different release, like 6.12 if you are trying 7.0, or vice versa, in case the different kernel helps.

I've tried this now:

Unraid 6.12

Unraid In GUI mode

In safe mode

In safe GUI mode

 

Proxmox 

Ubuntu server

And even windows server

Memtest(passed)

Removed a power supply

Removed the other power supply

Rearranging ram

Removing every ram stick except one for each cpu

 

And I inspected the Mainboard for physical damage such as blown capacitors 

 

Nothing changes anything

 

I also tried: 

Disconnecting everything unnecessary for boot. (Removed all drives, raid controllers and USB hubs(build into the case) and even a CPU)

 

It always gets stuck at some point or another. Always blinking Cursor goes away

Edited February 27, 20251 yr by 1euro7cent
Added inspect board

Not much else to try, see if you can source a different board.

Some side info. I tried to install Windows 10. It worked flawlessly (I needed to install the drivers for the raid controller) I'm going to try to mess a bit with the bios and maybe that fixes it. Windows can only use one CPU but all the ram. Even the ram on CPU #2