I have 2 of these (one is serial YK9D035109) Esprimo Edition P2411 PCs purchased at more or less the same time and both have developed the same fault within 2 weeks of each other. I have established that it is not the power supply.
The problem is that the PCS will not boot... when turned on they begin to boot, for around 5 - 20 seconds and then reset. This repeats a few times and then they give up. There are no beeps, and the hard disk does fire up. I can't get into the bios.
Can anyone advise me as to what is the likely cause having ruled out the power supply? Given the fact that both failed at the same time, I'd imagine that I'm not alone.