Best Mac OS X for MacBook5,2?

[Cubytus]

Try undervolting as well: http://coolbook.se

You need a fix to make it work on Mountain Lion and newer (up to Sierra) using this guide: https://forums.macrumors.com/thread...mavericks-details-here.1662099/#post-22946432

I'll also get a Noctua NT-H1 thermal compound. I've been using it and it's great, I average 40 degrees celsius now, fans hitting 3k RPMs.

Except that SleepEnabler has disappeared, the project page gives a 404 error.

Gelid G751 is supposed to be the best of thermal compounds, only being slightly more difficult to work with than the Arctic Silver…

 

[Cubytus]

Try undervolting as well: http://coolbook.se

You need a fix to make it work on Mountain Lion and newer (up to Sierra) using this guide: https://forums.macrumors.com/thread...mavericks-details-here.1662099/#post-22946432

I tries to follow the instructions in the linked post, but now CoolBook displays only 0MHz, and doesn't allow any adjustment.

Any idea? Should I uninstall CoolBook first?

 

[asoksevil]

I tries to follow the instructions in the linked post, but now CoolBook displays only 0MHz, and doesn't allow any adjustment.

Any idea? Should I uninstall CoolBook first?

Apologies for the late reply lol.

You just have to follow the instructions I have linked. Make sure you are getting the right plist for your model. Also cookbook is a paid tweak, you can't use it without a license.

Start everything from scratch, uninstall and follow every step CAREFULLY.

CoolBook is currently working on my 2010 MBA with El Capitan.

Some tips for cookbook. When connected to the power cord make sure to find the sweet point between lowest acceptable voltage and highest frequency without crashing. In my case it was 0.9250 V (the lowest I can actually go) for 1866 MHz as opposed to the 1.0375V and 1866 MHz the system will use by default.

You find this spot by testing all frequencies until one of them "crashes" under heavy load. Once you find it just use the one above it.

When on battery, I don't recommend setting it on the lowest frequency as we already have low machines and even using Safari at something lower than 1000 MHz (800 or 900 MHz are the options I can choose) would make it lag when opening new tabs. So get the middle or high frequency and set it to the same lowest acceptable voltage.

 

[Cubytus]

A very, very late reply on an old topic. This same computer is still running as well as it can given its age, but I discovered by reading the schematic that two thermal sensors next to the fins were completely omitted. That's right, J5520 on MacBook5,2 is unconnected. AFAIK U5535 is supposed to integrate three inputs, the internal CPU thermal diode, its own internal sensor, as well as the external thermal diode. It can work with only two input but presumably wouldn't perform as well

Sloppy repair?
Late-minute factory change?

One mystery.