# Fatal Error Incompatible CPU detected

**URL:** <https://forums.docker.com/t/fatal-error-incompatible-cpu-detected/9162>\
**Category:** Docker Desktop\
**Tags:** macos\
**Created:** [April 14, 2016, 8:14pm UTC](https://forums.docker.com/t/fatal-error-incompatible-cpu-detected/9162 "2016-04-14T20:14:32Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![gaetan](https://sea3.discourse-cdn.com/docker/user_avatar/forums.docker.com/gaetan/32/6047_2.png) [@gaetan](https://forums.docker.com/u/gaetan)\
**Post date:** [April 18, 2016, 4:56pm UTC](https://forums.docker.com/t/fatal-error-incompatible-cpu-detected/9162/6 "2016-04-18T16:56:57Z")

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Hello,

I am sorry if the documentation isn’t more complete regarding this matter.

On OS X, the way of knowing if your CPU complies with all the Hypervisor.framework requirements is by checking the value of the sysctl `kern.hv_support` key.

```auto
$ sysctl kern.hv_support
kern.hv_support: 1

```

If it is 1, then your CPU is supported.  
If it is 0, it means the Hypervisor.framework cannot be used with your CPU, for a reason or another.

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_[View the full topic](https://forums.docker.com/t/fatal-error-incompatible-cpu-detected/9162)._