According to reports – and then a subsequent post from Intel which it say is part of its new transparency strategy – there are a high number of customers with Broadwell and Haswell CPUs that are experiencing random reboots for both PCs and servers.
We have received reports from a few customers of higher system reboots after applying firmware updates. Specifically, these systems are running Intel Broadwell and Haswell CPUs for both client and data center. We are working quickly with these customers to understand, diagnose and address this reboot issue. If this requires a revised firmware update from Intel, we will distribute that update through the normal channels. We are also working directly with data center customers to discuss the issue.