What's new?
Hardware Monitor Widget Edition Version History

Release 2.95 (Build 110907)

Added support for the iMac (Mid 2011) model series.
Added support for the MacBook Air (Mid 2011) model series.
Added support for the Mac mini (Mid 2011) model series.
Added support for the Mac mini Server (Mid 2011) model series.

Release 2.94 (Build 110314)

Added support for the Early 2011 MacBook Pro model series.
Added support for monitoring Intel second generation Core i processors (Sandy Bridge).
Added support for monitoring Intel Family 6 Model 31 processors.

Release 2.93 (Build 101216)

Added support for the new (Late 2010) MacBook Air computers.
Support for the temperature sensors at the locations “Hard Drive Proximity” and “Graphics Processor 1 Analog Sensor” had to be withdrawn, because those sensors don't work as expected with specific portable and iMac computers.
Added version number at the backside of the widget and in the preview column of the Finder.

Release 2.92 (Build 100908)

Added support for new (Mid-2010) iMac computers.
Added support for computers with Intel "Westmere class" processors, including the new (Mid-2010) Mac Pro systems.
Added support for many additional sensors found in Intel-based Macintosh computers.
Resolved a problem where monitoring of light sensors was not possible on Intel-based computers.

Release 2.9 (Build 100419)

Added support for the new Intel Mobile Core i7-600, i5-500, i5-400, i3-300 processor series ("Arrandale").
Added support for the new MacBook Pro (2010) computers.

Release 2.85 (Build 100208)

Added support for the iMac 27".
Added a feature to detect defective device drivers on non-Apple systems which might send invalid readings to the widget.

Release 2.8 (Build 090918)

On PowerPC hardware, support for S.M.A.R.T. hard drive sensors accessed via SATA interfaces has been enhanced. The widget will now accept the temperature sensors of unknown SATA drive models. (This has always been the standard on Intel-based computers.)
The support for hard drive sensors controlled via proprietary drivers of Sonnet and FirmTek has been enhanced.
The default number of displayed digits behind the decimal point is now automatically set to zero in cases where it is known that the sensor hardware does not provide more significant digits.
Corrected a problem where the temperature values displayed for the cores of the Intel P7350 processor have been shifted by 15 degrees Celsius.

Release 2.7 (Build 090324)

Added full support for the new Mac Pro series (March 2009). This includes support for processors using Intel® Core™ i7 technology and simultaneous multi-threading.
Completed support for the new iMac and Mac mini series (March 2009).
The labels for several battery sensors have been changed to be more consistent with the labels of other sensors. Numbering will now begin with 1 instead of 0.

Release 2.6 (Build 090122)

Added new feature to display the current operating temperature of battery units and the voltages of each individual cell in a battery pack. This feature is only available for portable computers having battery units compliant with the Smart Battery Standard, running Mac OS X 10.4.9 or later.
Added support for the MacBook (Late 2008), MacBook Air (Late 2008) and MacBook Pro 15-inch (Late 2008).
Added preliminary support for the future MacBook White (Early 2009) and the future MacBook Pro 17-inch (Early 2009).
Added preliminary support for future models of the iMac and the Mac mini based on Nvidia chipset technology, expected to be announced in 2009.
Added support for "per-core" Digital Thermal Sensors on specific Intel Mobile Core 2 Duo processors in 45 nm technology.

Release 2.51 (Build 080623)

This is a maintenance update which reacts to recent developments in Mac OS X Leopard and fixes minor problems.

The readings of non-working GPU-load sensors provided by some of Apple's graphics drivers for Leopard are now correctly suppressed by the widget. Instead of displaying a constant zero value, the sensor will be removed entirely.
Support for monitoring the frequency of Intel processors based on 45 nm technology ("Penryn") has been withdrawn. The sensor might not reflect the true performance mode under all operating conditions.

Release 2.5 (Build 080312)

Added support for new portable Mac systems with Intel T8000 processors.
Added temperature sensor support for the standard PATA hard drive of the MacBook Air.
Support for on-core temperature sensors of Intel processors based on 45 nm technology ("Penryn") has been modified: As confirmed by Intel, the core sensors behave no longer linear enough for the display of absolute readings in low temperature ranges. For this reason, support for core temperature sensors in 45 nm technology has been removed in the Temperature Monitor Widget. The Hardware Monitor Widget will display them as logical sensors showing "Core Hot" status information.
Enhanced support for CPU clock frequency monitoring, especially on systems with Xeon 5400 processors and MacBooks running Leopard or running without a battery unit.
Added a workaround for a security problem in Mac OS X which affects systems containing a GPU of the ATI Radeon X1000 series. In those systems, the GPU driver can crash, causing the screen content to freeze. The Hardware Monitor Widget now tries to avoid situations that could increase the likelihood for this defect to become noticable. NOTE: It is our policy not to discuss security holes in third-party products before giving the vendor (Apple) six months time to fix this problem.

Release 2.4 (Build 080211)

Added support for new Macintosh systems equipped with Intel Xeon 5400 processors.
Added support for the MacBook Air.
Added full support for load sensors of Intel GMA X 3100 and ATI Radeon X 2000 graphics chips.

Release 2.3 (Build 071024)

Added official support for the iMac models published in August 2007.

Release 2.2 (Build 070619)

Added support for the new MacBook Pro series introduced in June 2007.
Added support for a variety of internal temperature sensors of new hard drive models. This affects old Macintosh computers not supporting the AHCI standard.
The widget now correctly suppresses the display of electrical sensors for NVIDIA 7600 GT MXM cards in the 24-inch iMac. In that special configuration, the power supply of the GPU cannot be monitored.
The widget now better keeps track of the user's preferences for the two display areas if it is run on a computer with changing sensor configurations.

Release 2.1 (Build 070104)

Added support for a large number of voltage, current (amperage), power, and light sensors for Intel-based Macintosh systems.
Added full support for the new Apple Xserve Quad Xeon.
Added support for S.M.A.R.T. temperature sensors in SATA drives connected via an SAS bus.
Removed support for the internal Intel CPU sensor monitoring the target value of the core voltage. This is now superseded by the voltage sensors monitoring the actual core voltage supply.
The button to start the main application was removed.
The sensor menus on the preferences backside have been enhanced to better differentiate between sensors measuring different quantities at the same location.
The rounding of readings from frequency sensors of x86 processors has been updated according to Intel's recommendations.
Corrected a problem where a memory sensor in portable Core 2 Duo systems was misidentified as being a memory riser-card sensor.
Corrected a problem where the internal temperature sensor of Hitachi Deskstar 7K500 drives was no longer seen as functioning sensor.

Release 2.0 (Build 061108)

Added support for a large number of new temperature sensors of Intel-based Macintosh systems. This includes thermal diodes monitoring the processors externally, GPU sensors, drive bay sensors and FB-DIMM sensors of the Mac Pro, etc.
Corrected a problem where the speeds of switched-off fans were displayed as "---" instead of "0 RPM" on some specific PowerBook models.

NOTE: Some specific sensor location labels for Intel-based systems are subject to change and may not be final. Compatibility Reports for the new Core 2-based Mac series created via the Help menu of Hardware Monitor are welcome. Intel Xserve models are not fully supported yet. Support will be added when these systems become available.

Release 1.95 (Build 061010)

Due to recent efforts in reverse-engineering Apple's System Management Controller, it is now possible to support all fan sensors of all Intel-based Macintosh systems. The sensors and their parameters for permissible limits are found automatically. Additional temperature sensors are expected to be supported in the near future.

Release 1.9 (Build 060918)

Added support for the 4 new iMac series introduced in September 2006.
Added support for temperature sensors in some old hard drives which are not fully compliant with today's implementation of the S.M.A.R.T. industry standard.
By user request, the widget now additionally supports monitoring of the case security lock for all Xserve systems. The lock position is monitored by a logical status sensor, where 1 denotes the normal, locked position, and 0 the unlocked setting.

Release 1.8 (Build 060825)

Added support for the Apple Mac Pro.
The widget can now detect if a processing core of an Intel processor was shut down by the user, so the digital thermal sensors of that core no longer update their values. The sensor display of the affected core will switch to the usual "disconnected sensor" reading after some time.

Release 1.7 (Build 060618)

Due to quality problems and intellectual property issues, support for the third-party software "SpeedIt" has been removed. The application Hardware Monitor now comes with its dedicated own driver to access internal information of x86 processors. The driver can easily be installed or uninstalled from within the application. The program will automatically notify the user if installation of the driver is recommended. The widget will automatically detect and use the driver after it has been installed.
The following additional sensors will be accessible on current x86-based Macintosh systems when the driver is active: the internal digital thermal sensors for each CPU core of Intel processors, current core voltage value of Intel processors, current true clock frequency of Intel processors.
The policy for detecting temperature sensors that are built into hard drives has changed: If the application detects a SATA drive under control of an Intel-based Macintosh system using AHCI, it will automatically assume that this drive contains a working temperature sensor compliant with the latest version of the ATA and S.M.A.R.T. standards. Up-to-date hard drives will no longer need explicit support by the application but will be accepted automatically.

Release 1.6 (Build 060504)

By request of many interested customers, this update is published earlier than initially intended. You only need to update from 1.51 if you like to use one of the following modifications:

Due to very high demand, this version adds support for the third-party software "SpeedIt" by InCrew Software, Spain. SpeedIt is a kernel extension for Mac OS X which grants user applications permission to access the on-chip CPU temperature sensor of Intel-based Macintosh systems. The monitoring application will automatically detect if SpeedIt is running on the system. If yes, the features of SpeedIt will be used to acquire readings from the CPU. For additional information, please see the FAQ chapter of the reference manual.
Enhanced support for the first generation iBook G4, where temperature sensors of the type Analog Devices ADT7460 did not deliver their readouts fast enough with specific Mac OS X versions, causing intermittent display of zero values.
Corrected a problem where temperature sensors controlled by the G4 version of the Apple System Management Unit could not be selected.

Release 1.51 (Build 060428)

Added support for ACPI-compliant battery units of non-Apple computers.
Added support for several new S.M.A.R.T. hard drive sensors.

Release 1.5 (Build 060302)

Added support for new Macintosh systems which use the "smart battery" industry standard.

Release 1.4 (Build 060216)

Because many users requested a smaller front of the widget, the layout has been changed. The front has been reduced in width while the backside has been made wider. The widget now uses cut-off labels when the front is not large enough to display all data.
By user request, not only the internal core of the widget but also the outer bundle now contains version information.
Added support for hard drive sensors accessed by SATA controllers that follow the AHCI standard, which is a new feature of Mac OS X 10.4.4.
Added support for several new S.M.A.R.T. hard drive sensors.
Added preliminary support for the iMac Intel Core Duo.
Corrected a problem where the load sensor of the ATI Mobility Radeon 9700 was erroneously detected as temperature sensor.

Release 1.3 (Build 051125)

Added support for the third-generation iMac G5 (iSight).
Added support for several new S.M.A.R.T. hard disk sensors.

Release 1.2 (Build 051110)

Added support for the new PowerMac G5 Dual Core systems.
Added support for the new PowerBook G4 (Super Drive Dual Layer) systems.
Added support for ambient light sensors found in the latest PowerBook models.
Added support for several new S.M.A.R.T. hard disk sensors.

Release 1.0 (Build 050720)

First official version of Hardware Monitor Widget Edition.

What's new? Hardware Monitor Widget Edition Version History