TSC: 1830168 cpu0:0)Init: 431: The Execute Disable/No Execute CPU feature is not enabled ...

[Obelisk79]

After installing ESX 4.1 on IBM x3650 Server following error apears:

TSC: 1830168 cpu0:0)Init: 431: The Execute Disable/No Execute CPU feature is not enabled for this machine

We have applied latest bios version installed.

Any idea?

[VTsukanov · Accepted solution]

Usually this error message denotes that you need to change BIOS settings, something like this "Advanced Options" -> "Processor Options" -> "No Execute Memory Protection" -> Enabled.

Take a look at CPU feature is no enable for the machine after upgrade ESX 3.5 to vSphere4 & After upgrading to vSphere error "TSC: 3197488: 461: The Execute Disable/No Execute CPU feature is n...

[Obelisk79]

It was option in Advanced settings of IBM BIOS

[CraneFL]

Do you know if this could be the possible cause to a ESX host locking up?

[tinchun]

Hi All,

If the server model is HP Proliant server, what should I do?

[WudthiP]

Reboot host and press F9 to access System BIOS

Select Advanced Options --> Processor Options.. --> No-Execute Memory Protection --> Enabled.

That's all.