migrating to new hardware, new system wont boot with old config

[quik]

Hi

I used a consumer PC as a freenas server for a while and now i wanted to upgrade to ECC ram. So i bought a new Mainboard/CPU/RAM and I'm trying to use the old config for the new system.
When I use the old USB or go into freenas with a fresh install and upload the old config on the new hardware, freenas wont boot anymore. A fresh install works fine with the new hardware until i try to load the old config.
I get the following messages:

PXE-E61: Media test failure, check cable
PXE-M0F: Exiting Intel Boot Agent.
ClIENT MAC ADDR: ..............
PXE-M0F: Exiting Intel Boot Agent.

Seems like it's trying to boot from network?
Maybe has something to do with BIOS UEFI? Since the old hardware is consumer grade Mobo, RAM, CPU and the new hardware is all server grade.
any ideas how to make the old config file bootable in the new hardware?

thank you

 

[quik]

ok it seems like i got it to work. I had to enable UEFI in BIOS, now it seems to boot with the new usb drive and the old config. But the old usb drive still wont boot. but as long as all the settings in the new drive are there, everything is fine