[B]Hi everyone,[/B]

I'm having a bit of trouble with my [B]HP Prodesk 400 G2 MT[/B]. (At first it was giving 4 beeps with blinking red light) at start up. After replacing a shorted [B]4C08N MOSFET[/B], it now boots directly when I plug in the AC cable without pressing the power button. The fan spins, but there's no display.

I've tried flashing the BIOS using A ME CLEAN firmware, but that didn't solve the issue.

[B]Has anyone else encountered this problem?[/B] Any suggestions or troubleshooting steps would be greatly appreciated.

Thanks in ad