I built a 16 Bay San using a Supermicro X7DB8 mother board.
It has a Promise 16 Port PCIx16 Raid controller for 16 SAS drives.
There is a PCIx16 Video Card.
The board has 2 onboard Intel Gigabit LAN ports
I added 2 more older PCI-X intel cards dual port LAN cards gigabit (4 ports total)
It also has 1 10GB PCI-X (in green slot) for replication to another san.
Everything was working fine. One day I logged in remotely to this server and bam I was cut off. I went over to the server and all LAN ports lights shut off, including the onboard LAN.
However the switch where all the ports are connected is all lit up.
When i try to boot the OS hangs at 86% and eventually resets itself. When i pull the intel cards out everything boots fine. But I notice all my ip addresses are back to default settings except for he 10GB card.
Any ideas what this could be?