Upgraded fine from 6 to 7.8 on my x86. Works fine until its loaded. Have Xeon E3-1200v2 4GB RAM and I350 dualport NIC. When load gets to around 800Mbit it reboots after 10 seconds. CPU load around 15%. 3670MB ram free, pure hardware no VM, no special features just NAT, queues, RIP, OSPF, native ipv6...