Release Notes |
Monitoring GPU sensors on computers which have two independent switchable graphics units is not officially supported by the application: Some specific Apple computers come with two alternative GPU solutions: One energy-saving graphics processor inside the main processor and one high-performance graphics processor on an external chip. Such computer models show the option Automatic graphics switching (or similar) in the pane Energy Saver of System Preferences. If the option is active, which is the recommended default setting, the computer may change GPUs during operation, switching one graphics processor off and the other graphics processor on. All sensors of the GPU currently powered down will also become inactive. Due to architectural problems, there can be unexpected side effects in the application when you monitor such sensors.
Workaround: We don't recommend to monitor any of the GPU sensors for such computer models. Identify all graphics processor sensors in the pane Sensors of the Preferences panel of the application and set the check mark Data query: Don't acquire readings from this sensor for each of them.
After starting the program, I receive a warning that some resources have been damaged. Even when I download a fresh copy from the distribution site, the problem persists and I cannot use the application: On particular operating system installations, a warning panel with the message "Warning: The resources of this application have been damaged" may appear although the program bundle is authentic.
Workaround: This problem is caused by a security hole detected by the application. When a security problem is found, the program uses an error message which may mistakenly indicate that its own resources are damaged although critical permission settings in the operating system are damaged instead. Some bad installers for low-level UNIX applications are known to cause such a defect. You can repair the system as follows:
sudo chown -R root:wheel /usr/bin
sudo chmod -R go-w /usr/bin
The program should launch correctly after performing these steps. The security hole opened by the third-party installer will also have been closed.
After upgrading to Mac OS X 10.7.4, the sensors named "Battery 1 Cell x" may be shown as being disconnected: Mac OS X 10.7.4 is not capable of accessing voltage data of individual battery cells. When running this OS version, such sensors will no longer be available. Other versions of Mac OS X are not affected.
Workaround: This is a known defect of Mac OS X 10.7.4 and there is no workaround. The problem is caused by a defective version of the battery driver which is shipped with Mac OS X 10.7.4. We have made Apple aware of this problem and hope they will fix it in future versions of the operating system.
When using a MacBook Pro of the "Early 2011" model series (having identification codes beginning with "MacBookPro8"), the system might return invalid hardware information: Apple computers of the model series MacBook Pro 13-inch (Early 2011), MacBook Pro 15-inch (Early 2011), and MacBook Pro 17-inch (Early 2011) are originally shipped with a special release of Mac OS X, known as version 10.6.6 Build 10J3210, and the firmware version MBP81.88Z.0047.B04. Both components appear to be immature, not supporting all aspects of the MacBook Pro computers correctly yet. The systems might return incorrect information about technical details of the processor package and contain invalid entries in their System Management data. Applications such as Hardware Monitor depend on the operating system to respond correctly on hardware information requests. The following details could be display incorrectly: number of processor cores per processor package, system bus clock frequency, bus widths of memory chips, onboard devices, available expansion slots. This list might not be complete.
Workaround: There is no known workaround. Apple might or might not resolve these problems with future versions of Mac OS X and the MBP81 firmware. It is Apple's policy not to comment on any technical details of Intel-based computers.
When running monitoring utilities of other vendors which also access S.M.A.R.T. features of hard drives, Hardware Monitor can be blocked from accessing S.M.A.R.T. readings: Certain low-quality monitoring applications of third-party vendors are known to reserve exclusive access to the S.M.A.R.T. interfaces of hard drives. When running such applications, neither Hardware Monitor, nor other applications, like Apple's Disk Utility or System Profiler, can access any S.M.A.R.T. features until the misbehaving application is quit. S.M.A.R.T. sensors or probes show a value of "---", the Drive Overview window shows "S.M.A.R.T. status: not available".
Workaround: Either disable S.M.A.R.T. monitoring in the third-party application, or contact its vendor to have the problem resolved. It is bad practice to use exclusive access to the S.M.A.R.T. interfaces of hard drives.
After waking from sleep mode, the Main Logic Board Air Inlet sensor of some Power Macintosh G5 Dual Core systems shows negative or no readings: When a dual core PowerMac G5 wakes from sleep mode, the temperature reading of the air inlet sensor may show incorrect values.
Workaround: This is a known defect in specific versions of Mac OS X Tiger. This particular sensor is not correctly woken up by the operating system. We have made Apple aware of this problem and hope they will resolve it in future versions of Mac OS X. In the meantime, you can restart the computer to reset the sensor hardware, or disable data acquisition for this sensor in the preferences of the application.
Computers of the model series "iMac (Late 2006)" may show unusually high readings for the CPU A Current Sensor: When you are using an Apple iMac with model identification "iMac5,1", the values displayed for the current (amperage) sensor of the CPU appear to be too high and inconsistent with CPU power readings.
Workaround: This is a known problem with the System Management Controller (SMC) used in this particular model series. (Other iMac series are not affected by this problem.) It is unknown if Apple will release an SMC firmware update to fix this problem. You might like to disable data acquisition for this sensor in the preferences section of the application.
In certain configurations, the entry "Logitech LCD Manager" may not be displayed in the list of LCD devices, even if a Logitech product with LCD support is connected to the computer (Hardware Monitor only): Although you have attached a Logitech LCD product and installed the Logitech driver software, no device entry for this product appears in the preferences panel of Hardware Monitor. The display does not work and cannot be configured.
Workaround: The Logitech LCD Manager software does not start reliably under specific circumstances. In this case, applications are not able to see or connect to the respective LC displays. Not only Hardware Monitor, but all applications trying to use LCD-enabled Logitech devices are affected by this problem. Try the following to start the LCD Manager manually:
Logitech might resolve this problem in future versions of their driver software.