As soon as I plug in the power cable the power supply fans spin up (but not the chassis fans), and the two hard drives get power.
The motherboard also has a green light on.
But hitting the power button does nothing, it just stays amber. No error indications to reference.
It's been sitting on the desk for a few days with a clean windows install and been working fine but it was just dead when we walked in this morning.
Bad PSU?