---
name: "powermac_nvram"
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/powermac_nvram"
---

# powermac\_nvram(4)

non-volatile RAM

## NAME

**powermac\_nvram** – non-volatile RAM

## SYNOPSIS

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

**device powermac\_nvram**

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

```
powermac_nvram_load="YES"
```

## DESCRIPTION

The **powermac\_nvram** driver provides access to the Open Firmware configuration NVRAM available on the Apple PowerPC-based machines.

This driver currently supports "Core99" machines containing a Sharp, Micron, or AMD NVRAM.

## SEE ALSO

[nvram(8)](/nvram/8.md)

## HISTORY

The **powermac\_nvram** driver first appeared in FreeBSD 7.0.

## AUTHORS

The **powermac\_nvram** driver was written by Maxim Sobolev ⟨*sobomax@FreeBSD.org*⟩.