Dom0 crash/reboots

Hello,

We have just upgraded all our pools to XenServer 7.0.

One of the cluster is causing troubles with "random crashs/reboots". I can't find any clue in logs of anywhere.

Other clusters work like a charme.

Hardware is :

• MB : Supermicro X10DRFF-C
• CPU : Intel(R) Xeon(R) CPU E5-2650 v3

How could I figure out the crash/reboot issue? This is happening randomly on all pool members, which make me think we can exclude hardware failure.

Gaëtan