Dead Motherborad on Readynas Ultra 4 Plus (RNDP400U)

Hello,

I have Readynas Ultra 4 Plus which I use from time to time(Turn on only when I need it) But box was connected to power outlet and to Ethernet for a WOL purpose. Unfortunately One day (probably by surge) I couldn't turn it on. At the beginning I though it was bad psu but when I open it and inspect parts there was couple of damage on motherboard. First one of Ethernet chips was blown(this to where ethernet cable was pluged in) second condenser and coil all of those was burned. But replacing those thing didn't change anything.

Maybe someone of you have motherboard diagram to this box? It will help to diagnose. 

But anyway the problem was how to get data back. I try to look for a same box but without luck so I decided to buy 6 bay unit. So I grab one of those Ultra 6 but not Plus. Same architecture but less power. Affraid that when I put hdd's new unit will erase all data i run machine. On machine was older firmware than I have in old box but it was no problem. Machine run great without any issues and even with all settings from old Ultra 4 plus. So if you have same problem as mine have broken box and need restore data try to buy same box or greater from same architecture. For Ultra 4 Plus work Ultra 4, Ultra 4 Pro, Ultra 6, Ultra 6 plus, Ultra 6 Pro. For Ultra 2 even more option all line Ultra 4 and Ultra 6.

If you have motherboard diagram to Ultra 4 plus (RNDP400U) or have good motherboard and want to sell it or even If you had same situation and know how to fix it please let me know. I would like to fix my old box.

Good luck with your boxes!!