Fixed : The monitoring only test configured with launching an external program will no longer fail when started without scripts

The HwInfo version number is now dynamic so I don't forget to update it manually anymore

Fixed : The vram test UI will properly load the "Test all GPU" value when switching periods / loading a schedule

Fixed : Sync issue between threads that should load the same physical core ( Thanks artemus ! )

Fixed : A lingering process was present when you tried to start OCCT twice

Added Snapshot polling support. This allow HwInfo to more accurately get the CPU frequency and uses much less CPU cycles to do so. Enabled by default.

Fixed : During stability certificates, errors were properly detected and reacted upon, but failed to show in the log and indicator

Fixed : error count in the log would repesent the total numbers of errors detected and not the new error count

Fixed : Final fix to the GUI slow updates during Memory stress tests

Fixed : when maximized, the test names were missing from the period display. What a weird bug to be honest.

When a single period is present in a schedule, the delete and move buttons are now hidden (they didn't do anything anyway)

Fixed : Some translations issues on Stability certificate descriptions and tooltips

Improvements on disk-related tasks to improve UI reactivity under high load scenarios

Fixed : The memory test in Auto thread modes could result in very large hangs on the GUI side.

Fixed : The test was not properly "killing itself" when the GUI was crashed

Fixed : In the report, 3D adaptive was using its internal name when displayed in the period selection combobox

Fixed : selecting a 3D Adaptive period   in the period selection area was outputting errors

Fixed : The default report filename wasn't properly formatted

Fixed : debug code reached production and generated errors on the CPU test. Sorry.

Added sound support in OCCT, announcing any error detected using our first voice performer : GLaDOS !

Fixed : AMD GPUs were showing as "gfx" in OpenCL tests ( Vram and Compute)

Added proper error messages when HwInfo cannot be initialized or when OCCT cannot write in the temp folder

Fixed : OCCT was refusing to start on setups without proper OpenCL support - which is usually due to missing or very old drivers

Fixed : Auto thread mode sometimes didn't start the proper amount of threads

Fixed : Coolermaster UI related glitches ( thanks Serhii ! )

Fixed : Forgot to remove 3D adaptive from the list of benefits in the stability certificate section

Fixed : If a CPU is lacking a particular CPU cache level ( for example, no L3 cache ), the bench won't display the option anymore and won't try to give figures for it when it's really missing.

Fixed : the latency benchmark would fail to give bandwidth figure in some cases due to a large page error

Removed dependencies to windows cryptographic functions

Replaced the "busy" indicator with a new one to lower the UI usage by using a 2FPS animation for this indicator. Especially useful for the new memory latency benchmark

Updated HwInfo engine to the latest version

Much better support for the top-level bar for AMD GPUs (some sensors were missing previously)

OCCT now allows you to disable monitoring again, as in v11

Revamped the advanced thread section ! The CPU test will allow you to do per-core testing, exclude core, and ecven launch several threads per core. This will definitely get you covered for all your per-core testing needs !

Fixed issues with multi-GPU support - will now work flawlessly

Test is now available in the Free edition of OCCT

Fixed the GPU selection algorithm and this test will now work on GPU that aren't 3D capable ( Nvidia A100, etc.)

New benchmark : Latency/Bandwidth ! This test will tell you latency, read and write bandwidth for Memory, L1, L2, and L3 cache

Revamped the Upload mechanism, cutting down memory requirements for very big uploads (platinum certificates) and time required for preparing the data for upload

Fixed : A StackOverflow exception might occur on setup with large numbers of sensors when uploading platinum stability certificates

Fixed : the graphs might be missing after a successful benchmark upload

Fixed : Auto-starting a Stability certificate without having a config file present would start a Bronze level certificate regardless of the level chosen, in the GUI edition only

Fixed : The autoupdate would sometimes fail due to being too fast and clashing with other processes analyzing files. Sadly, this will be fixed when auto-updating from 12.0.13 to later versions

Fixed : negative font offsets are now properly remembered

Fixed : The summary would be stuck displaying SSE when instead of the selected instruction set. This was just a display issue.

Fixed : The last readings file would not be created in OCCT's temp folder

Fixed : When OCCT isn't configured to stop on the first error found, the schedule status would be set to finished, instead of error detected, when error occured. This lead to bogus exit codes in command-line.

Fixed : Auto-starting a stability certificate using command-line uin the GUI edition would be stuck with bronze level. Silver and others could not be selected. This did not occur with the command-line edition of OCCT.

Fixed : OCCT would sometimes refuse to start on older CPUs

Fixed : the graphs were not showing without license

Fixed : An exception may occur if your system had no 3d-capable GPU

The language translation option is now properly hidden again

Fixed : There's no constraint on the minimum interval when loading OCCT's settings anymore. The newer timer used doesn't allow concurrent refreshes, so the minimum refresh time doesn't have to be constrained anymore

Fixed : The enterprise edition would sometimes refuse to start if your CPU had more than 32 cores

Both the UI and the Command-line version will have an exit code corresponding to the test status (only if --auto-close is used for the UI edition). Codes are as follows : Finished = 0, Cancelled =1,Overheat = 2,Crashed = 3,ErrorFound = 4, WheaErrorFound = 5

Fixed : OCCT would not properly close if no test was launched prior

The cursor will switch to wait status while OCCT's cleaning up before closing

Fixed : When the window was closed, the process responsible for stopping the running tests and saving the report might have been interrupted

Fixed : The last location used for saving a screenshot is now properly remembered

Fixed : Auto starting a test would sometimes not display the test timer if the window was maximized

Fixed : if a report file with the same name already existed, OCCT would wrongly save it as #2#3, instead of #3 right away

Fixed : The sensor rules file was not properly loaded on startup, and OCCT would use its default rules

Fixed : When a WHEA error was detected and no compute error, the text status would still say "no error(s) detected". They properly appeared in the test log, and the indicator was yellow as intended, but this led to confusion.

Added Serial number reporting for Memory modules

Fixed : When no GPU was detected, the intended message didn't show up

Fixed : an issue was rarely preventing the benchmarks from finishing properly

Fixed : The summary did not display the current benchmark running

Fixed : The test status in the PNG report for the personal edition was not reflecting the last test run

Fixed : Serial numbers for Memory were missing from the json and HTML report

Fix : pressing space during a stability certificate won't restart the timer.

Fixed : Unsupported instruction sets would appear in the dropdown

Tentative fix : AVX512 would display weird behavior in advanced thread mode

Fixed : Schedules created with v11 would not load properly

Fixed : Autoupdate was still kicking in when it is not yet supported

Fixed a regression introduced in 12.0.3 : OCCT would fail to start on computer where it was never started before

Fixed : the monitoring driver may have been in use before starting OCCT

Fixed : The upload to ocbase setting was ignored 

Fixed : The font size setting wasn't kept after a restart

Fixed : After restarting a test that detected errors quickly, OCCT would detect a negative number of errors

Fixed : The instruction set wouldn't appear in the Power test summary

Removed the CPU and 3D test start log lines in the power test to avoid confusion

"Run all" CPU benchmark is now the default (without a config file)

System - Bronze stability certificate is now selected by default

Fixed : The autoupdate will properly restart OCCT and stop displaying a cmd box upon updating. As the issue is in the client, OCCT 12.0.0 and 12.0.1 will still exhibit this bug when auto updating to 12.0.2 or later versions. Starting from 12.0.2, this behavior will be gone.

The top-level bar will now remember the CPU&GPU selected

The top-level bar will try to auto-select a relevant GPU instead of the first one, which was often the iGPU

Added motherboard infos to system information

Fixed an exception that could occur if the number of physical cores and logical cores was badly detected ( mostly on older CPUs)

Added an option to save a debug file with system information and monitoring information - will come in handy to improve the top level bar auto-sensor picking

Fixed : the duration was off in the text of the UI ( the stability certificate durations were right, this is just a display issue )

Not forgetting about you translators, bugfixes are occuring in a side branch, please bear with me !

Fixed : The Drive flag for monitoring wasn't working

Fixed : The about window was not displaying license status and HwInfo version

Fixed : A memory leak would occur when OCCT was minimized and the graphs were displayed

Fixed : a dependency was missing, causing a crash of the test when started on bare Windows installations

Fixed : The GPU select option (and test all GPUs) was missing from the Power test

Rewrote 70% of the application - switched to net core. UI will feel much more reactive, will use less CPU, at the cost of some memory usage

Removed a lot of dependencies - OCCT has never been THAT portable

Added the ability to launch an external program to OCCT through the Monitoring Only test

Introducing a brand new UI with lots of features. The most proeminent is the top-level monitoring bar that is slated to improve a lot over time !

You can now more easily filter monitoring values. Use the right click to do so !

Graphs can be clicked to pinpoint values accurately. Give it a shot

Introducing GPU, System, and System (no 3D) stablity certificates

Added report comparison feature - contact us for more detail

The translation system will be released in an upcoming version of OCCT - this is english only for the time being. Sorry for that delay - it definitely needs some more time

Fixed a regression introduced in 11.0.22 related to stability certificate upload

Fixed a regression introduced in 11.0.22 leading to a crash when saving reports

Updated monitoring engine to deal with the recent security update released for Windows 11

Fixed : the window was still somewhat resizeable when monitoring was disabled for a short time

FIX : The serial numbers for some components were missing in the JSON report

Fixed : The upload would still occur if it was disabled in the settings

Added a fallback to another endpoint to the upload in case it fails

Fixed : The GUI would refuse to start if no GPU was detected

Instruction Set : Auto will be set to AVX2 instead of 512 as this option has proven to be much better at error detection ( for now )

The initialization time won't be counted in the global timer anymore. This means the test will apply the loqad change roughly 2s after starting, time for it to initialize

Fixed : Much smoother curve on older GPUs

Fixed : the load was set too low on RTX4090, resulting is a steep jump between 99% and 100%

The test will have a much better scaling on newer GPUs ( RTX4090 especially )

Fixed : uploading would fail in edge cases ( those issues are tough to reproduce )

Fixed : a rare bug would prevent stability certificate from uploading properly

Fixed : OCCT Command-line would error out when loading its config file and revert to the default values

Fixed : The memory available for testing was reported as 1GB instead of its real value

Fixed the upload issue - the previous fixes from 11.0.14 are now back in the main branch

Revamped the way OCCT is listing GPUs for better compatibility with ARC GPUs

Fixed : threads were competiting too much for a single resources, resulting in a loss of efficiency in high thread, small data set scenarios ( thanks Anders from Asetek ! )

Fixed : If a duration was exactly 00:00:00, the report would display it as "invalid duration" in the log

Release 11.0.14 has a critical issue with uploading that will take time to diagnose. 11.0.13 has been relabeled as 11.0.15 to give me some time to diagnose the issue. Sorry !

Big update & support for newer CPUs and GPUs ( Arc770,RTX4k...)

Fix : the test would refuse to start on a second GPU if it wasn't launch on the first GPU at least once ( Thanks PCSpecialist & Devin Hartley ! )

OCCT now creates a file named "LastMonitoringValues.json" in its temp folder which will always contains the latest sensor information ( Values, minimum, maximum...)

Fixed : The enterprise report would not properly display the total amount of memory available

Fixed : Saving the report now doesn't hang the GUI, and the cursor will be in a waiting state, as this process can last quite a while. A better fix will be coming later on, with, ideally, a progress bar.

Fixed : a regression caused the csv file only to contain enabled sensors. It will now contain all sensors regardless if they're enabled or not, as intended.

Fixed : when chaining several periods of 3D adaptive running on several GPUs, the test would be wrongly flagged as crashed

Tentative fix : wrong GPU order was used when several GPUs are present and tested at once

When no GPU is selected and the system has several, only the first one will be used (instead of all of them)

Fixed : on CPUs with E and P-cores, all the threads of the Memory test were assigned to E-cores for an unknown reason. Their affinity is now fixed to get around that issue.

Fixed : in case there was a LOT of lines in the report, OCCT would fail to generate the report. The report is now limited to 13000 pixels (which is already quite something)

Fixed : the status was wrongly set in the JSON file following 11.0.8 fixes

Fixed : the date and times were not properly displayed in logs if they were above 24 hours.

"test" is now the default verb if you don't specify one

Fixed : when the report was saved on a slow drive, there was a chance that the saving was interrupted before being fully completed

Fixed : settings were not saved properly on exit unless you started a test in the Personal/Coolermaster edition

Fixed a graphical alignment issue in the 3D adaptive configuration ( minor fix )

Added word wrap to fix some lines being cut using russian language

Fixed : the test configuration besides the currently active test should now all be saved when restarting OCCT

Fixed : The test config wasn't properly saved

Fixed : Gpu Standard settings were not properly loaded and saved in schedules

Fixed : Ukrainian and Russian translations text wrapping ( Thanks Serhii ! )

Fixed : in Windows Audit mode, Physical GPUs were considered Virtual, due to DirectX not populating properly its registry values. This is now handled correctly. Thanks Victor !

Fixed : the command line edition would skip the prerequisite copy step if the GUI edition was never run on that computer

Fixed : the retry button will only be displayed when a stability certificate or benchmark fails to upload (Thanks Emie !)

Fixed : the log wasn't fully cleared after a benchmark/stability certificate upload

Fixed : 3D adaptive will be displayed correctly and its config will properly show in the Enterprise edition report

Fixed : Stability certificate would fail to start if the following conditions were met (bear with me) : you were using a v10 config file without restarting OCCT, and you start a stability certificate without changing the type/level of the stability certificate. 

Fixed : OCCT Command-line was unsigned which caused the program to refuse its license file

If an error or WHEA error occurs right at the end of the test, it may be reported when OCCT is switching state, which will result in the test not stopping. I added additional guards against these cases

Fixed a typo in the platinum CPU stability certificate description

Rewrote and optimized OCCT's core scheduler

Every test (but linpack) now detect if the GUI has crashed and stops accordingly

Switched to 7z for the internal format of my tests to save exe space

The test files are now upacked on startup to gain time when starting

Dependencies are installed upon startup (this is especially true for the new 3D test)

Added the ability to stop on WHEA error ( enabled by default for Benchmark and Stability certificates)

Sliders can now be controlled using up and down on your keyboard for precise selection

Introducing the revolutionary 3D test, based on Unreal engine, with dynamic load options !

Introducing Variable mode, where the load will gradually increase from a set value to another, at a rate you specify. Test your whole GPU Curve with a single click !

Introducing Switch mode, where the load will switch very fast between two set values. Perfect for generating transient loads !

Added a retry button in case the upload fails

Introducing Stability certificates, allowing you to test your components using a predefined test, and share your report online to prove your computer is stable. GPU and System stability certificates will come later !

Available for CPU & Memory at first, in Bronze / Silver / Gold / Platinum levels

The number of slots per license is limited ( each report consumes a slot). The number of slots depends on your license, and Patreon sub level. I had to do this as a single certificate can be heavy, and storing that data is costly sadly.

You can manage the slots in your account menu

Added verbs to the command-line options of OCCT GUI & Command line ( use --help for more info )

Greatly updated the report - it is now much closer to the stability certificate display of my website

Fixed : without a license, if this part of OCCT was left open, the popups would pile up and you had to wait and click X popups. Now, only one of them will be displayed.

Only the first core will be checked by default instead of every core. This part of the UI screams for clarification.

Fixed : Auto and Advanced thread modes would not behave properly on CPUs with more than 64 cores

Bugfix : The CPU test, if launched fast & repeatedly in Fixed thread mode, may crash immediately after starting

Bugfix : Graphs with high variance were overly optimized and too much data was visually lost in the graphs (Thanks Emie !)

Bugfix : the auto-updater would fail in some circumstances

Bugfix : in the "license will soon expire" warning, the number of days left wasn't properly displayed

Minor improvements to the benchmark upload algorithm, including a higher timeout

Bugfix : it is now again impossible to change the currently active tab when a test is running

Bugfix : The waiting screen can be displayed several times in the monitoring section

Alder lake CPU's e-cores were incorrectly considered as having HT enabled in advanced thread mode

Bugfix : On some rare occasions, no cores were selected in the Advanced thread section when first displayed

Fixed : the per-core usage wasn't appearing for Intel CPUs with P-cores and E-cores

Fixed : when an error was occuring on a thread higher than the number of logical cores, no message was present in the log

Fixed : when the test crashed, no message was present in the log

Fixed : the benchmark upload would fail in Pro versions

OCCT will now kill any lingering test process upon starting a new test

If autostart is enabled, the last known status won't be displayed

Chaining Power Supply and 3D tests will now work properly (Thanks Jimms !)

Fixed : the SMBus flag wasn't working properly (Thanks Mickey !)

OCCT's window will now correctly respond to WIN+arrow shortcuts (Thanks Thierry !)

The graph lines won't disappear when changing OCCT's skin ( Thanks xixou2!)

The Graph update interval will be properly saved in OCCT's settings

AVX-512 was incorrectly reported as missing on CPU that fully support it (Thanks Michael !)

Virtual GPUs created using RDP/MSTSC won't appear in the GPU selection window and interfere with the test ( Thanks Austin ! )

The summary won't display 0MB when the test is starting, it was confusing

Stable

Edition

Version

Date

Changelog

Download

OCCT personal

Invalid DateTime

OCCT personal

x

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Versions

V12

OCCT V12

1

2

3

4