NVRAM serves approximately the same purpose as PRAM but its corruption is fairly uncommon. Note that modern Macs no longer use PRAM, instead they use something called NVRAM (non-volatile RAM). Occasionally PRAM gets corrupted and needs to be restored to fix problems that have developed. PRAM is powered by the internal battery, that’s why the information is not lost when you turn your Mac off. PRAM (Parameter Random Access Memory) stores vital system information, including display settings, the speaker volume, time zone settings, etc. Your Mac’s entering sleep unexpectedly, the battery doesn’t charge properly, your keyboard isn’t responding normally, Wi-Fi and Bluetooth refuse to work - these symptoms might mean that PRAM and SMC reset is necessary.īut before we show you how to reset MacBook’s PRAM and SMC, let us explain what SMC and PRAM mean and what problems resetting may solve. Macs are reliable machines but on the rare occasions, they may start acting strangely for no obvious reason. But to help you do it all by yourself, we’ve gathered our best ideas and solutions below.įeatures described in this article refer to the MacPaw site version of CleanMyMac X. So here's a tip for you: Download CleanMyMac to quickly solve some of the issues mentioned in this article.
