[Server boots sometimes the DSM Software]

And i tried it with fastboot disabeld too and it does not work

[Server boots sometimes the DSM Software]

Hello, 

I have a Problem with my Server. 

Server: Dual XEON X5650

Mainboard: Supermicro 8DTH

Ram: 48GB Samsung ECC DDR3

USB-Stick as first and only boot device 

 

The server was running a long time good, but after an Update it changed. The Server does not boot anymore from the old USB stick so i made a new one but there the Server booted but i can‘t finde it in the Software. After that the server had sometimes a blackscreen with a blinking cursor, sometimes it couldn‘t load the kernel and somtimes only a blckscrean. I mad a few more USB sticks but no one woked. I tried it in a other computer, there it worked.