Abaco XVB603
Initial setting:
In BIOS, go to Advanced->Network Stack Configuration and enable Network Stack and Ipv4 PXE Support.
In BIOS, go to Abaco->VMEbus Configuration and set Reserve VME Space to 512 MBytes.
In BIOS, go to Abaco->Network Boot Configuration and enable PXE ROM - ETH3 and PXE ROM - ETH4.
Save & Exit
Recycle power, it should be ready for PXE boot. If not, in BIOS, go to Boot and set appropriate network port(s) in BOOT Option #1 (and #2), disable others.