Power is on , hardrive is spinning , led flashing , power to all ext hardrives /ancillary etc.
No Post screen and signal not being received to screen. Re installed another screen and rebooted , Same problem (Nada) ???????
Turned power completely off and retried start , several times (nada )
System fans 4 in total , set to min speed and when booting noticed all fans ran at top rpm then settled back to normal speed???????