---
name: "coretemp"
section: "4"
platform: "freebsd"
package: "base"
version: "16.0-CURRENT-20261027-61c70dc16a79"
release: "FreeBSD 16.0-CURRENT (2026-10-27)"
platforms: ["freebsd"]
url: "https://new.carta.tech/coretemp"
---

# coretemp(4)

device driver for Intel Core on-die digital thermal sensor

## NAME

**coretemp** – device driver for Intel Core on-die digital thermal sensor

## SYNOPSIS

To compile this driver into the kernel, place the following line in your kernel configuration file:

**device coretemp**

Alternatively, to load the driver as a module at boot time, place the following line in [loader.conf(5)](/loader.conf/5.md):

```
coretemp_load="YES"
```

## DESCRIPTION

The **coretemp** driver provides support for the on-die digital thermal sensor present in Intel Core and newer CPUs.

The **coretemp** driver reports each core's temperature through a sysctl node in the corresponding CPU device's sysctl tree, named *dev.cpu.%d.temperature*.

## SEE ALSO

[amdtemp(4)](/amdtemp/4.md), [sysctl(8)](/sysctl/8.md)

## HISTORY

The **coretemp** driver first appeared in FreeBSD 7.0.

## AUTHORS

The **coretemp** driver was written by Rui Paulo ⟨*rpaulo@FreeBSD.org*⟩ as part of a Google Summer of Code project. This manual page was written by Dag-Erling Smørgrav ⟨*des@FreeBSD.org*⟩.