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TG Pro is a professional macOS hardware monitoring and management tool. Its core function is real-time monitoring of the temperature and status of various internal components (such as CPU, GPU, hard drive, battery) and providing precise manual or automatic fan control. It effectively helps users prevent overheating, optimize performance, extend hardware lifespan, and is compatible with a wide range of Mac models from Intel to Apple Silicon (M-series chips).
1. Core Interface and Workspace Overview
TG Pro’s interface is intuitive, mainly divided into three core areas: the main monitoring window, the menu bar icon, and the preferences panel. From the first use, you’ll appreciate its professionalism and simplicity.
1. Main Monitoring Window
After launching TG Pro, the main window is the information hub, typically containing the following panels:
- Temperature Sensor Panel: Displays real-time temperature readings of key components such as CPU cores, GPU, logic board, and hard drive (SSD/HDD) in a clear list format, usually in Celsius (°C) and Fahrenheit (°F).
- Fan Control Panel: Shows the current speed (RPM) of all built-in fans. Here you can switch fan control modes (auto/manual) and directly drag sliders or enter values to adjust target speeds.
- Hardware Diagnostics Panel: Provides key hardware diagnostic information such as battery health, cycle count, and SMART status, and indicates whether repair is needed.
- Log & Events Panel: Records all temperature alerts and fan speed events, supports export to CSV files for in-depth analysis.
2. Menu Bar Icon
TG Pro resides in the menu bar with an icon, serving as a quick access hub. You can glance at it anytime to check your Mac’s “temperature.”
- Click the icon: A dropdown menu shows the most important temperatures (e.g., highest CPU temperature) and fan speeds.
- Menu item functions: Quickly switch fan control modes, enable “Turbo Boost” mode (instant maximum fan speed), or jump directly to the main window and preferences.
3. Preferences
Access via the menu bar TG Pro > Preferences... or the main window menu; this is the core for customizing software features.
- General: Set startup options, temperature units, etc.
- Fans: Configure automatic fan control rules (“Auto Boost”), install or reinstall the Fan Helper.
- Notifications: Set temperature threshold alerts, choose to receive alerts via macOS Notification Center or email.
- Advanced: Configure logging, network access policies, and other security and diagnostic options.
2. Complete Workflow: From Launch to Daily Use
Below is a complete TG Pro usage workflow, taking you from zero to mastering the tool.
Step 1: Launch and Initial Check
Method: Find and click the TG Pro icon in the Applications folder to launch. On first run, the software may prompt to install the “Fan Helper” for full fan control permissions.
Location: After launch, the main monitoring window opens automatically. Meanwhile, the TG Pro icon (thermometer shape) appears in the menu bar.
Step 2: Monitor Hardware Status
In the main window, all sensor data updates in real time. No additional action is needed to view your Mac’s internal health at a glance. Key focuses:
- CPU/GPU Temperature: Whether it exceeds 90°C under load.
- Fan Speed: Whether it’s within normal range (typically below 2000 RPM at idle, rising to 5000-6000 RPM under high load).
- Battery Condition: Check the “Diagnostics” section for “Service Recommended” notices.
Step 3: Configure Automatic Fan Control (Advanced Settings)
This is one of TG Pro’s core features, designed to intelligently manage fans based on temperature.
- Open Preferences (Cmd+,) and go to the “Fans” tab.
- Click the “Edit Rules…” button.
- In the rule editor, click “+” to add a new rule. For example:
- Condition: When “Highest CPU Temperature” exceeds “75°C”.
- Action: Set “All Fans” to “70% of maximum speed”.
- You can create multiple rules; TG Pro executes the first matching rule from top to bottom.
Tip: For desktop devices like iMac, you can set more aggressive rules to keep temperatures low; for MacBooks, balance noise and temperature.
Step 4: Manual Fan Control (Instant Cooling)
When performing intensive computing or feeling your Mac overheating, you can intervene manually.
- In the main window’s Fan Control Panel, switch each fan’s control mode from “Auto” to “Manual”.
- Drag the slider or double-click to enter a value, increasing the speed to the desired level (e.g., 5000 RPM).
- Shortcut (Quick Cooling): Click the TG Pro icon in the menu bar and select “Turbo Boost”; all fans will immediately run at maximum speed for rapid cooling.
Step 5: Set Alerts and Logs
To be notified of abnormal temperatures, you can set notifications.
- Open Preferences (Cmd+,) and go to the “Notifications” tab.
- Enable “Temperature Notifications”.
- Set the temperature threshold for alerts, e.g., set “Highest CPU Temperature” alert to 95°C.
- Choose notification method: “Use Notification Center” or configure email alerts.
- In the “Advanced” tab, you can enable CSV logging to record all temperature and fan data for long-term analysis.
Step 6: Daily Use and Quitting
After configuration, TG Pro runs silently in the background. Daily use mainly involves quickly checking status via the menu bar icon.
Quit the software: Right-click the menu bar icon and select “Quit”. Note that after quitting, automatic fan control rules will be disabled, and fan control returns to macOS.
3. Advanced Tips for Common Features
Beyond basic operations, mastering these tips will take your TG Pro experience to the next level.
- Create Custom Sensor Views: In the main window, you can drag to reorder the sensor list or pin the sensors you care about most (e.g., CPU diode) to the top.
- Fix iMac Fan Full Speed Issue: Some iMacs run fans at full speed continuously after replacing the hard drive with a third-party one. In TG Pro’s “Fans” preferences, create a rule that overrides system control (e.g., fix fan speed at a reasonable value) to solve this issue.
- Use SMC Reset as Auxiliary: If fan behavior is abnormal, after using TG Pro manual control, try an SMC reset (for Intel Macs), then observe if TG Pro’s automatic control returns to normal.
- Combine with Activity Monitor: When TG Pro shows high temperatures, immediately open “Activity Monitor” (via Spotlight search), sort by “CPU” or “Energy” tab, and identify and manage high-load processes.
4. Common Issues and Solutions
You may encounter minor issues during use. Here are 5 of the most common questions and answers.
1. Fan control not working or “Fan Helper not installed” shown
Problem: Unable to manually adjust fan speed, or software prompts to install helper.
Solution:
- Go to TG Pro > Preferences > Fans tab.
- Click the “Reinstall Fan Helper Application” button.
- Enter administrator password as prompted to complete installation. You may need to restart TG Pro after installation.
2. Inaccurate temperature readings or missing sensors
Problem: Some sensors on certain Mac models (especially newer models like M-series Macs) may not be recognized.
Solution:
- Ensure you are using the latest version of TG Pro (e.g., v2.54+), which adds sensor support for Apple Silicon Macs.
- Sensor support depends on hardware and firmware; TG Pro reads all available data as much as possible, but not all hardware sensors are accessible to third-party software.
- Use officially supported readings (e.g., CPU core temperature) as primary reference.
3. Menu bar icon not showing
Problem: After launching TG Pro, no icon appears in the menu bar.
Solution:
- Check System Preferences > Dock & Menu Bar to see if TG Pro is hidden.
- Open TG Pro preferences’ “General” tab and confirm “Show TG Pro in menu bar” is checked.
- Try quitting and restarting the TG Pro application.
4. Software itself uses high CPU
Problem: In “Activity Monitor,” the TG Pro process shows sustained CPU usage.
Solution: This may be due to a memory leak issue in older versions (before v2.54) on Apple Silicon Macs.
- Primary solution: Be sure to upgrade to v2.54 or later, which fixes this issue.
- Check if notification or logging rules are too frequent (e.g., logging interval too short).
5. How to restore default fan control?
Problem: Want to return Mac to system default fan control strategy.
Solution: Simply quit TG Pro. After quitting, all custom fan rules are disabled, and fan control is fully returned to macOS. When you launch TG Pro again, it will restore your previously set rules.
5. TG Pro for Mac Shortcuts Summary Table
Mastering shortcuts makes using TG Pro more efficient. The table below summarizes the most commonly used shortcuts.
| Function Description |
Shortcut (Mac) |
Location |
| Open main monitoring window |
Cmd + 1 |
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