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 Home » Freeware Downloads » Hardware Testing and Diagnostics   
  File Name Rating Downloads
Last Update/Developer
CPU Core Overload v2.3
CPU Core Overload v2.3 CPU Overload will make the specified core of your CPU to work at maximum speed. This can have multiple purposes: stress test of your CPU, thermal overload, stability test, miscellaneous system and programming tests. This app is completely portable and can be ran from a USB stick, network folder or cloud folder.
5/5 1,617 Oct 08, 2019
Cubic Design
Defpix v1.4.10.17
Defpix v1.4.10.17 Defpix - Defective (dead) pixels tester is a free program that can help you with checking for defective pixels on your LCD screen. The program simply shows these colors - red, green, blue, white and black - over the whole surface of the screen. Defpix requires no installation and supports multiple monitor systems. Defective pixels are pixels on an LCD screen not performing as expected. The pixel is failing to reproduce light levels correctly. There are three different types of defective pixels: Hot pixels (always on). Dead pixels (always off). Stuck pixels (one or more sub-pixels are always on or always off).
5/5 5,355 Jun 06, 2019
HE - Hardware Read and Write Utility v1.21.1.20
HE - Hardware Read and Write Utility v1.21.1.20 HE - Hardware Read and Write utility is a powerful utility for hardware engineers, BIOS engineers, driver developers, QA engineers, performance test engineers, diagnostic engineers… etc. This utility access almost all the computer hardware, including PCI (PCI Express), PCI Index/Data, Memory, Memory Index/Data, I/O Space, I/O Index/Data, Super I/O, DIMM SPD, CPU MSR Registers, S.M.A.R.T monitor, HDD physical sector , ATA Identify Data, ACPI Tables Dump, ACPI AML Code Disassemble, Embedded Controller, USB Information, SMBIOS Structures, PCI Option ROMs and MP Configuration Table. It’s a Windows base utility support Win7 / Win8 / Win8.1 / Win10. This utility comes with ABSOLUTELY NO WARRANTY, it allows you to modify hardware settings, this may damage your system if something goes wrong. Author will not take any responsibility about that, you are on your own risk. How to use To run this program with all functions, you need HE.EXE, HE.INI. To run this program for minimum functions (PCI (PCI Express), PCI Index/Data, Memory, Memory Index/Data, I/O Space, I/O Index/Data, CPU MSR Registers, Physical Disk Sectors, ATA Identify Data, S.M.A.R.T Monitor, ACPI Table Dump, ACPI AML Code Disassemble, Embedded Controller, USB Information, SMBIOS Structures, PCI Option ROMs, MP Configuration Table), you need HE.EXE only, but some information will not be displayed, such as PCI vendor name... For Super I/O, HE will load the [SUPERIO] section in initial file HE.INI, and auto detect the system entry by entry, once the detection routine return success, the Super I/O function will be available to use, user may add new super I/O entries in HE.INI. For DIMM SPD functions, HE will load the [SMBUS] section in HE.INI, same as the [SUPERIO] section, program will detect the chipset to find out the SM bus controller, and the algorithm provided by this section support the DIMM SPD functions. ...
5/5 637 Jan 19, 2021
HeavyLoad v3.6
HeavyLoad v3.6 The freeware stress test tool HeavyLoad was developed to bring your PC to its limits. It can be installed on any edition of Windows and client/server versions (32-bit and 64-bit) currently supported by Microsoft. HeavyLoad puts your workstation or server PC under a heavy load and lets you test whether they will still run reliably. Be mobile: Install HeavyLoad as a portable version e.g. on a USB stick and use it wherever needed! Stress Test for Your Most Valuable Systems Check your most important systems in advance to see whether they can withstand the highest loads. Tests for All System Components No matter if CPU, GPU, RAM, hard disk, or all of them together: HeavyLoad takes it to the limit! Easy to Use Thanks to an intuitive graphical user interface and visual feedback, no expert knowledge is required. Complete manual here. This download is for the 64bit version. If you need the 32bit version, download here. What is New in HeavyLoad? Version 3.6.0 Improvements Running on a virtual machine, HeavyLoad now explicitly indicates that there is a risk of overloading the machine's host. The CPU test now supports the load of more than 32 processor cores. HeavyLoad can now also be executed in the background using the command line option "/NoGui". HeavyLoad is now also available via Chocolatey. Bugfixes: Settings in the checkboxes of the diagram legend are now persistent even after a new installation. Fields that do not support negative values now ignore the entry of "-". 13 January 2020 Click here to visit the author's website.
5/5 982 Aug 05, 2020
JAM Software GmbH
MemTest v7.0
MemTest v7.0 MemTest is a RAM tester that runs under Windows. It verifies that your computer can reliably store and retrieve data from memory. A correctly functioning computer should be able to do this with 100% accuracy day in and day out. A computer that fails these tests, perhaps because of old hardware, damaged hardware, or poorly configured hardware, will be less stable and crash more often. Even worse, it will become even less stable over time as corrupted data is written to your hard disk. By running MemTest you can ensure that your computer's RAM correctly functions. It is wise to test this when you buy a new computer, install new RAM, or change the configuration of your machine (for instance, to overclock it). Are you the sort of user who likes to push the performance of your machine to the edge? Relying upon whether your machine will boot after your new BIOS tweaks is a poor way to determine the safety of your new settings. Use Mem Test as a true test of stability. Release notes: 7.0: New MemTest Pro UI gives instant control over the number of threads and how much ram per thread, and summarizes results across threads. Displays total memory test throughput too. Click here to visit the author's website.
5/5 3,838 Feb 08, 2021
HCI Design
Memtest86 Free v4.3.7 Floppy Disk image
Memtest86 Free v4.3.7 Floppy Disk image7 MemTest86 is a free, thorough, stand alone memory test for x86 architecture computers. There are many good approaches for testing memory. However, many tests simply throw some patterns at memory without much thought or knowledge of memory architecture or how errors can best be detected. This works fine for hard memory failures but does little to find intermittent errors. BIOS based memory tests are useless for finding intermittent memory errors. RAM chips consist of a large array of tightly packed memory cells, one for each bit of data. The vast majority of the intermittent failures are a result of interaction between these memory cells. Often writing a memory cell can cause one of the adjacent cells to be written with the same data. An effective memory test attempts to test for this condition. Therefore, an ideal strategy for testing memory would be the following: Write a cell with a zero. Write all of the adjacent cells with a one, one or more times. Check that the first cell still has a zero. It should be obvious that this strategy requires an exact knowledge of how the memory cells are laid out on the chip. In addition there are a never ending number of possible chip layouts for different chip types and manufacturers making this strategy impractical. However, there are testing algorithms that can approximate this ideal and MemTest86 does just this. For the floppy download you will need a blank floppy disk. Click here to visit the author's website.
5/5 5,846 May 31, 2019
Passmark Software
Memtest86 Free v9.3
Memtest86 Free v9.3 industry standard for memory diagnostics MemTest86 is the original, free, stand-alone memory testing software for x86 and ARM computers. Boots from USB flash drives to test the RAM in your computer for faults. Utilizing algorithms that have been in development for over 20 years. Industry standard since 1994. Features PassMark MemTest86 supports all current technologies: 13 different RAM testing algorithms - including row hammer fault detection* All RAM types supported (DDR2, DDR3, DDR4, SODIMM, XMP, ECC) Self-booting off USB or Network (PXE)* boot, without needing DOS, Linux nor Windows Optimized for UEFI-based x86/ARM systems Native 64-bit code (since version 5) ECC error detection & injection* Secure Boot verified – Code signed by Microsoft Graphical interface with mouse input Save logs and create customizable HTML reports Full test automation via configuration file Support for memory blacklisting in Windows (badmemorylist) and Linux (BADRAM) Multi-language support (Chinese, German, Russian, Spanish & more) Notes: IMPORTANT: MemTest86 V8 images support only UEFI boot. On machines that don't support UEFI, MemTest86 will not boot. Please download the older V4 BIOS release for CD or V4 BIOS release for USB of MemTest86 instead. Installation and usage instructions are available on the Technical Information page MemTest86 is a stand-alone program that does not require or use any operating system for execution. The version of Windows, Linux, or Mac being used is irrelevant for execution. However, you must use either Windows, Linux or Mac to create a bootable USB drive. System Requirements x86 (32/64-bit) or ARM64 based hardware UEFI platform firmware Windows, Linux, or Mac OS USB Flash Drive ...
5/5 4,203 Oct 06, 2021
Passmark Software
OCCT v9.1.3
OCCT v9.1.3 The most popular CPU/GPU/Power Supply testing tool available. OCCT is great at generating heavy loads on your components, and aims at detecting hardware errors or overclocking issues faster than anything else. A monitoring engine is also embedded, to ease diagnostic and see how your computer reacts under heavy load using graphs. OCCT is free for personal use only! If you are running OCCT in a corporate or commercial environment, you have to buy a PRO license to use OCCT. CPU:OCCT OCCT's own CPU test. Small data set is great at pushing your CPU to its limits, and Large data set is the best at finding errors quickly CPU:Linpack The famous Linpack test, known for pushing Intel CPUs to their limits. Not as great on AMD CPUs though, and less likely to pick up errors than OCCT GPU:3D OCCT's version of the furry donut, which includes a error detection mode for finding rendering errors automatically GPU:MEMTEST Exclusive OpenCL-based Memtest for testing your graphic card's memory ! Runs on any GPU (Intel, AMD, Nvidia) with OpenCL support. It is great at finding faulty bits, less at finding overclocking-induced errors POWER SUPPLY Combines CPU:OCCT and GPU:3D tests to stress your power supply and motherboard. This test is the most power-hungry included in OCCT. Useful to identify power-starved components ! Monitoring OCCT will monitor your computer and present you real-time graphs showing you temperatures, voltages, fan speed, frequencies, component usage, and power consumption during your tests. Built-in protection for your computer Worried about frying your components ? Turn the maximum temperature threshold in OCCT's options ! Should a component reach this critical temperature during a test, OCCT will stop itself immediately. Test report At the end of a test, you will be able to save a full graphical report of what happened during the test, for diagnostic purposes Changes: OCCT 9.1.3 Main Fixed a crash that could occur when copying the test log to the ...
5/5 1,318 Oct 12, 2021
QuickMemoryTestOK v3.23
QuickMemoryTestOK v3.23 A small but effective program to quickly check the RAM for errors before the warranty expires! Today you buy PCs with 16, 32, 64, 128, ... Giga-Bit RAM, but these are usually never used or addressed on most computers. For this reason, you should undergo a test, as long as the warranty does not expire. To make sure that there is no defective area in the main memory that you should use in the future. Or just test your Windows on the high memory behavior to provoke other system errors or so .... QuickMemoryTestOK Key Features: ◆ Memory Quick Test ◆ Pause test to monitor the PC with high RAM load ◆ Customizable test runs ◆ Clear display of memory status ◆ Keep the CPU's behavior in mind ◆ Access to essential memory and system functions Other options and specifications: ◆ Zoom: Visually-impaired and eye-friendly ◆ Very small program ◆ Low CPU usage ◆ Optional translation capability ◆ Portable ◆ Multilanguage Simple example for the use of the "memory quick test" Start the program. The first time, you will be presented with the default Quick Memory Test setting, but it can be customized at any time. You will be see all the relevant information about the current working memory and its use like in Windows XP Task-Manager. Start the memory test with the button "Start the Test", after the test start you can abort it with the same button "Stop the Test" and stop the memory test at any time. There is then still the button "Pause / Resume" to pause the memory test, to see how the computer behaves at a certain RAM (memory) load. Invalid or defective bytes are displayed. New in version 3.23 // 25 June 2021 • Important tests in the memory test on Windows 10 Home • New Code Sign certificate for QuickMemoryTestOK.exe • New language for Quick-Memory-Test-OK: Bosnian • Many ...
5/5 1,794 Jun 25, 2021
Nenad Hrg
StressMyPC v4.77
StressMyPC v4.77 Free stress testing software for stress testing your PC. Let's see! How long can your laptop battery hold a charge? Or let your PC sweat like a .... ;) Warning! Unstable and overclocked systems can be crashed. # StressMyPC : Start / Stop the stress-test # Paint-Stress : Simple stress for the graphics (GPU) # Aggressiv CPU-Stress : Aggressiv stress for the CPU(s) # HD-Stress : Stress for the hard drive "StressMyPC" does not have to be installed and can be executed easily from the desktop. It's one small, portable utility for Windows PC-s and is also a small usb-stick friend :) New in version 4.77 // 11 August 2021 • Review of the PC Stress Test Tool on MS Windows 11 OS • Small adjustments for Windows 11 • Update of the language files in the PC Stress Test Click here to visit the author's website.
5/5 6,602 Aug 13, 2021
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