Whether you have an older model or a new MacBook Pro, use TG Pro to extend the life of your Mac. The editor will tell you in detail about the experience of using TG Pro~
Open TG Pro and the first thing you'll notice is the main window with plenty of temperature, fan speed, and diagnostic information.
This is one of the main areas of the application that you will interact with. This is explained in detail in the following sections.
Another main area to quickly see everything is the status menu. It is very similar to the main window, just in a more compact form.
The status menu is available by clicking on the TG Pro icon in the upper right corner of the menu bar. Depending on your preference, it may look similar to the following:
To adjust some common settings, open Preferences (from the application menu or menu bar icon) and select the Applications tab. It looks like this:
Here's what each app does:
Login - To automatically launch the application when you start or log into your Mac, select the "Automatically launch TG Pro" checkbox.
Run Mode - To have the app run in the background without a dock icon or menu bar, select Background. This is the most common setting as it allows the application to run in the background and still provide a status menu (from where the main window can also be accessed).
Update frequency - This is how often TG Pro checks temperature and fan speed. The default value is 10 seconds, which is usually a good compromise between continuous updates and infrequent queries.
Hotkeys - If you want to be able to press a keyboard combination to display the main window, select the desired checkbox and click the "Record Shortcut" button. Then press your desired keyboard combination. For example, it might be Shift-Control-F or Shift-Command-Option-M, etc.
Console Output - This is for debugging purposes and is generally not checked unless Tunabelly support asks you to check it.
Hackintosh - Use this option to enable Universal Sensor Mode, which will dynamically determine the available sensors rather than the Mac model. This is useful for Hackintosh models (homebrew Macs) as they require a valid Mac model name but don't always have a suitable sensor list to match it.
Reset app to default settings - Completely resets the app to its original state. This will reset all Auto Boost rules and preferences.
To change how information is displayed in the menu bar, switch to the MenuBar preferences tab. It looks like this:
Menu bar content - Choose which temperatures are displayed and optional fan speeds.
Stacking Order - Determines how information is stacked. Horizontal will use more space and have a larger font, while vertical will use less space and have a smaller font. Here are examples of each:
level:
vertical:
Options - A number of options for customizing how information is displayed. NOTE: "Use smaller font" does not work for vertical stacking order because it already uses a fairly small font.
In the Temperature preferences tab, there are a few more settings worth checking out. It looks like this:
Temperature Units - Choose between displaying temperatures in degrees Celsius (C) or Fahrenheit (F).
Optional - Enable this option to also check drive temperature via SMART. On some older Macs, this can slow things down, which is why this warning appears.
Reset maximum temperature - Resets all recorded maximum temperatures. These are displayed in the main window with a vertical black bar at the end of each row when the mouse is hovered over a specific temperature.
Monitor all internal temperatures
One of the most common things people like to do with the TG Pro is to check and monitor all internal temperatures. Sometimes this is just out of curiosity, sometimes because there may be a problem and this will help track it down.
The best place to start is to look at the main window of all the different temperature sensors and the types available.
On the left (#1) is a list of hardware areas, with a row at the top labeled "All". As shown in the screenshot above, selecting this option will display every temperature sensor that TG Pro can detect. If you only want to see sensors for a specific area (eg: CPU), just click once on that row.
On the right (#2), are all temperature sensors for the selected area. For each sensor, you'll see the name, the current temperature, and a bar graph showing the temperature between 0°C and 105°C (32°F and 221°F).
Check the maximum temperature value
To see the highest recorded temperature for a specific sensor, simply hover over the row and a popup will appear. At the end of each temperature level, the same information is shown as a vertical line.
Note that if you set the update frequency to less than 4 seconds or so, the popup will not appear. This is because macOS waits a few seconds before displaying the tooltip/popup on mouseover. If you set the update frequency to the lowest value (e.g. 1 second), there is not enough delay before the table is refreshed (with all temperature values).
To change this setting, open the application preferences, click the Application tab, and move the Update Frequency slider at least to the right, between the 1 and 10 second marks.
To reset the maximum temperature mark, click the gear icon in the upper right corner of the main window and select "Reset Maximum Temperature" from the context menu that appears.
What do green, yellow and red mean for temperature?
The temperature bar will be one of three colors:
Green - Temperatures between 0 and 89C (32 and 192F) are usually nothing to worry about.
Orange - Temperatures between 90 and 99C (194 and 210F), getting closer to the thermal limits of the hardware.
Red - The temperature is at or above 100C (212F) and very close to the thermal limit. It's best not to leave components running this hot for long periods of time. Usually it's a CPU sensor that shows such high temperatures. Most Intel CPUs have a maximum temperature of 95C (203F) to 105C (221F) at which point they will slow down to avoid damage.
Monitor fan speed
Returning to the main window, let's take a look at the Fans area, shown in #1.
Every fan within your Mac will appear in this area. In this example (a late 2013 13-inch MacBook Pro), there's only one fan. Fan speed is displayed in RPM, which stands for revolutions per minute. So if the fan is spinning at 2000 RPM, it means it is fully spinning 2000 times per minute. The higher the RPM, the faster the fan spins, which means more cooling.
#2 shows the name of the fan. The fan, which in this case is "right" because that's its physical location, also displays the current speed, which is 1935 RPM.
#3 shows the lowest speed of the fan, which is 1280 RPM. The fan speed will never drop below this, although there will be some small changes here and there where the rpm will drop a bit. In this case, when the fan speed changes, it may drop to 1275 RPM and then stabilize at 1280 RPM.
#4 shows the maximum speed of the fan, which in this example is 6199 RPM. Fan speed should never exceed this, despite the same warning as in #3.
#5 is for quickly changing fan control modes.
Note: On some Macs, such as the 2015-2017 MacBook Pro 13" models (MacBookPro12,1, MacBookPro13,1, MacBookPro13,2, and MacBookPro14,1), the hardware has a feature that turns off the fan when the CPU is below the CPU level. This happens When this happens, TG Pro cannot control it until the hardware turns it back on. Here's what it looks like:
What do green, yellow and red mean for fan speed?
Just like the temperature bars in the sections above, they will be one of three colors:
Green - Fan speed is between 0-74% of maximum. For example, if the value is 50%, the green slider will be exactly halfway between the minimum speed and the maximum speed. There's usually nothing to worry about as the system will increase and decrease the fan speed as needed, although usually conservatively. This is one of the reasons why the TG Pro has fan control.
Orange - Fan speed is between 75-89% of maximum speed. This is usually fine if the Mac has been working hard for a long time, unless it's always in this range or red.
Red - Fan speed is between 90-100% of maximum speed. This means the fan is almost full. Again, this doesn't matter if the Mac is working fine, unless it keeps running red.
If the fan is consistently running red even under light load, the fan may be faulty or clogged with dust.
To clean the fan, using compressed air around the vents can help remove any dust and debris. If you're feeling really adventurous, open your Mac and use the compressed air inside to give it a thorough cleaning. For information, search Google for "cleaning inside your Mac" or check out the examples under "Dust Removal"
Check hardware for defects
Back in the main window again, we'll look in the Diagnostics area as shown in #1.
This includes three parts:
Last shutdown: - This indicates whether the last shutdown of the Mac was normal, abnormal or forced. Some examples of force shutdown are when the battery dies or when the Mac overheats to the point of shutdown. In this case, it is "Normal" since the user used the "Shutdown..." option in the Apple menu.
Fans: - Shows if any fans have been marked as "bad" by the hardware. TG Pro Check has a special sensor to check if any fans may be faulty. If there are one or more of them, their names will appear as shown in #2. In this case, the "right side" is reported as defective.
#3 - If the fan fails, a help button will be displayed and when pressed, a helpful popup will be displayed with information about the operation. This means that TG Pro has detected that one or more of the fans may be defective in some way. A fan marked defective may be working properly now, although it may fail.
This can happen for a variety of reasons, the most common being:
A) Dust clogged it. To clean the fan, spray compressed air over the exhaust grille and gently vacuum the exhaust dust. B) This is a one-time event, restarting the Mac may set the diagnostics to normal. C) The system detects abnormal increases and decreases in fan speed.
Temperature Sensors: - If any of the temperature sensors are marked as "bad" by the hardware, they will be displayed here. Just like a fan, TG Pro checks special sensors for this information.
Battery Health: - Shows the status of the battery (if your Mac has one), any errors reported, and the charge cycle count (shown in #4). The condition will be one of the following:
- Good - A power supply with good performance.
- General - Functional power supply with limited capacity.
- Poor - The power supply is unable to provide power.
If the condition is "Fair" or "Bad", some system-provided error message is usually displayed in parentheses.
The charge cycle count is the number of times the battery has been discharged and recharged. For example, if it says 10, it means the battery has been discharged a certain amount and recharged (by plugging your Mac into a power outlet). Most Mac laptop batteries are designed to handle up to 1,000 charge cycles without any issues.
Overall, for the editor, this TG Pro Mac software is really great. It can perform temperature detection and fan adjustment on Mac computers at any time. You can try it!
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