Xserve issue!


hi everyone, have issue 2008 xserve, dual cpu @3.0 model. have had unit in house 3 months, , plugging in ac power cable power supply, started in 3 seconds delay automatically without need pressing power button. system id light on, on, without blinking. post lights don't light up, , front panel blue lights never come nor ethernet link lights (the ethernet light both lights if connect cable) have multi end screwdriver has torx or tip can open , close enclosure lock, have stock upgraded 4x1 gb ram, dual psu. connecting monitor gpu nothing, no signal, , ram lights turn red @ power 3 seconds, turn off. (the ram tested in dell power edge server , works fine) cpu's tested on same power edge , both work fine. monitor works mac. hdd spins up, no problem. can shed light on issue? there no docs online of constant yellow light, blinking. there 4 buttons on logic board grouped , have used them reset smc, etc. there lone button near edge has no label, , maybe can something? please help.
 

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