Graphics card testers: 3D Benchmark — Video card speed test

Video Card Testing & Software Quality Assurance

nVidia GeForce GTX 1080 Ti nVidia GeForce GTX 1080 Ti 11264 MB
ASUS GeForce RTX 2070 nVidia GeForce RTX 2070 8192 MB
MSI GeForce GTX 1070 nVidia GeForce GTX 1070 8192 MB
nVidia GeForce GTX 1050 nVidia GeForce GTX 1050 4192 MB
nVidia GeForce GTX 1050 Ti nVidia GeForce GTX 1050 Ti 4096 MB
eVGA GeForce GTX 970 nVidia GeForce GTX 970 4096 MB
nVidia GeForce GTX 1650 nVidia GeForce GTX 1650 4096 MB
nVidia Quadro K2000 nVidia Quadro K2000 2048 MB
PNY XLR8 GeForce GTX 660Ti nVidia GeForce GTX 660Ti 2048 MB
ASUS GeForce GTX 680 nVidia GeForce GTX 680 2048 MB
eVGA GeForce GTX 760 nVidia GeForce GTX 760 2048 MB
nVidia GeForce MX150 nVidia GeForce MX150 2048 MB
nVidia GeForce GTX950A nVidia GeForce GTX950A 2048 MB
EVGA GeForce GT 730 nVidia GeForce GT 730 2048 MB
nVidia CN-047KM8-56189 nVidia Quadro K620 2048 MB
eVGA GeForce GTX 750Ti nVidia GeForce GTX 750Ti 2048 MB
Asus GeForce GTX 660Ti nVidia GeForce GTX 660Ti 2018 MB
MSI N480GTX nVidia GeForce GTX 480 1536 MB
eVGA GeForce GTX 580 nVidia GeForce GTX 580 1536 MB
eVGA GeForce GTX 560 nVidia GeForce GTX 560 1024 MB
eVGA GeForce GTS 250 nVidia GeForce GTS 250 1024 MB
eVGA GeForce GT 220 nVidia GeForce GT 220 1024 MB
PNY GeForce GT 430 nVidia GeForce GT 430 1024 MB
ASUS ENGTS450 TOP nVidia GeForce GTS 450 1024 MB
eVGA GeForce GTX 280 nVidia GeForce GTX 280 1024 MB
nVidia GeForce GT 630m nVidia GeForce GT 630m 1024 MB
nVidia Quadro 2000 nVidia Quadro 2000 1024 MB
nVidia GeForce GT 420M nVidia GeForce GT 420M 1024 MB
nVidia GeForce GT 720 nVidia GeForce GT 720 1024 MB
nVidia Quadro 2000 nVidia Quadro 2000 1024 MB
eVGA GeForce 210 nVidia GeForce 210 1024 MB
eVGA GeForce GTX 650 nVidia GeForce GTX 650 1024 MB
eVGA GeForce GTX 750 nVidia GeForce GTX 750 1024 MB
Gigabyte GV-N61001GI nVidia GeForce GT 610 1024 MB
nVidia GeForce 8800GTX nVidia GeForce 8800GTX 768 MB
nVidia GeForce 8800GTX nVidia GeForce 8800GTX 768 MB
BFG GeForce 8800GTS OC nVidia GeForce 8800GTS 640 MB
Asus EN8400GS Silent nVidia GeForce 8400GS 512 MB
Biostar V6802XA52 nVidia GeForce 6800XT 512 MB
PNY GeForce 9800 GTX nVidia GeForce 9800 GTX 512 MB
eVGA e-GeForce 9800GT nVidia GeForce 9800GT 512 MB
eVGA E-GeForce 9600GT nVidia GeForce 9600GT 512 MB
eVGA e-GeForce 7950GT nVidia GeForce 7950GT 512 MB
eVGA e-GeForce 7950GT nVidia GeForce 7950GT 512 MB
nVidia GeForce 310 nVidia GeForce 310 512 MB
PNY Verto GeForce 7300GT nVidia GeForce 7300GT 256 MB
XFX GeForce 7900GS nVidia GeForce 7900GS 256 MB
XFX GeForce 8500GT nVidia GeForce 8500GT 256 MB
nVidia GeForce 7300LE nVidia GeForce 7300LE 256 MB
PNY GeForce 7800GT nVidia GeForce 7800GT 256 MB
nVidia GeForce 8600M GT nVidia GeForce 8600M GT 256 MB
nVidia GeForce 7600GS nVidia GeForce 7600GS 256 MB
MSI PCX 5750 nVidia GeForce FX 5750 128 MB
nVidia GeForce 6600 nVidia GeForce 6600 128 MB
Leadtek WinFast PX6200TD nVidia GeForce 6200 128 MB
PNY Verto GeForce 6600GT nVidia GeForce 6600GT 128 MB
eVGA e-GeForce 6600GT nVidia GeForce 6600GT 128 MB
nVidia Quadro NVS140M nVidia Quadro NVS140M 128 MB
eVGA e-GeForce 6800 nVidia GeForce 6800 128 MB
ASUS GeForce 8400GS nVidia GeForce 8400GS On Board
Diamond GeForce 4 MX nVidia nForce 2 IGP On Board
nVidia GeForce 6150 nVidia nForce 430 On Board
nVidia GeForce 6100 (nForce 420) nVidia nForce 420 On Board
Sapphire Radeon RX Vega 64 AMD Radeon RX Vega 64 8192 MB
Gigabyte Aorus Radeon RX 580 AMD Radeon RX 580 8192 MB
MSI Radeon RX 480 AMD Radeon RX 480 8192 MB
AMD Radeon R7 M270 AMD Radeon R7 M270 4096 MB
ASUS Radeon R9 280 AMD Radeon R9 280 3072 MB
Gigabyte Radeon R7 250 AMD Radeon R7 250 2048 MB
AMD Radeon R9 360 AMD Radeon R9 360 2048 MB
AMD Radeon HD 7690M XT AMD Radeon HD7690M XT 2048 MB
AMD Radeon HD 6950 AMD Radeon HD6950 2048 MB
AMD Radeon HD 7340 AMD Radeon HD7340 2048 MB
AMD Radeon RX 550 AMD Radeon RX 550 2048 MB
AMD Radeon R9 360 AMD Radeon R9 360 2048 MB
AMD FirePro V5900 AMD FirePro V5900 2048 MB
Gigabyte Radeon HD 6450 AMD Radeon HD6450 1024 MB
Sapphire Radeon HD 6750 AMD Radeon HD6750 1024 MB
Sapphire HD5750 AMD Radeon HD5750 1024 MB
MSI R5570 AMD Radeon HD5570 1024 MB
AMD Mobility Radeon HD 6550 AMD Mobility Radeon HD6550 1024 MB
AMD Mobility Radeon HD 5650 AMD Mobility Radeon HD5650 1024 MB
AMD Radeon HD 7670 AMD Radeon HD7670 1024 MB
XFX Radeon HD 5450 AMD Radeon HD 5450 1024 MB
Asus EAh4650 Silent AMD Radeon HD3650 512 MB
HIS h360XTQT512DDN-R-P AMD Radeon HD2600 XT IceQ Turbo 512 MB
HIS h360PRF512DDN-R-P AMD Radeon HD2600 Pro 512 MB
AMD Radeon HD 2900 XT AMD Radeon HD2900 XT 512 MB
ASUS EAh4850 AMD Radeon HD3850 512 MB
ASUS EAh4850 AMD Radeon HD3850 512 MB
Diamond Radeon HD 2600 Pro AMD Radeon HD2600 Pro 512 MB
VisionTek Radeon HD 4870 AMD Radeon HD4870 512 MB
Sapphire Radeon X1900 XTX AMD Radeon X1900 XTX 512 MB
Diamond Radeon HD 3870 AMD Radeon HD3870 512 MB
AMD Radeon HD 4850 AMD Radeon HD4850 512 MB
Gigabyte RX345256H AMD Radeon HD3450 256 MB
HIS 240PRHMF256N-R AMD Radeon HD2400 Pro 256 MB
AMD Radeon X1650 XT AMD Radeon X1650 XT 256 MB
VisionTek XTASY Radeon X1300 AMD Radeon X1300 256 MB
AMD Radeon X1950 Pro AMD Radeon X1950 Pro 256 MB
AMD Radeon X1950 Pro AMD Radeon X1950 Pro 256 MB
AMD Radeon HD 3450 AMD Radeon HD3450 256 MB
Sapphire Atlantis Radeon 9500 AMD Radeon 9500 64 MB
AMD ES1000 AMD ES1000 16 MB
AMD Ryzen 5 2400G AMD Radeon RX Vega 11 On Board
AMD Radeon RX Vega 10 AMD Ryzen 7 3700U On Board
AMD Radeon Vega 3 AMD Ryzen 3 3200U On Board
AMD Mobility Radeon HD 4250 AMD Mobility Radeon HD4250 On Board
AMD Radeon HD 6620G AMD A8-3500M On Board
AMD Radeon R6 AMD Radeon R6 On Board
Intel HD Graphics 4000 Intel Core i7-3630QM On Board
Intel HD Graphics 4600 Intel Core i7-4790 On Board
Intel HD Graphics 4600 Intel Core i7-4790 On Board
Intel HD Graphics 4600 Intel Core i7-4790 On Board
Intel HD Graphics 4600 Intel Core i7-4790 On Board
Intel UHD Graphics 630 Intel Core i7-9750H On Board
Intel HD 5500 Intel Core i7-5500U On Board
Intel HD Graphics 530 Intel Core i7-6700 On Board
Intel HD Graphics 630 Intel Core i5-7400 On Board
Intel HD Graphics 530 Intel Core i5-6400 On Board
Intel HD Graphics 530 Intel Core i5-6400 On Board
Intel HD 4600 Intel Core i5-4460 On Board
Intel HD Graphics 4000 Intel Core i5-3360M On Board
Intel HD Graphics 530 Intel Core i5-6400 On Board
Intel HD Graphics 520 Intel Core i5-6200U On Board
Intel HD Graphics 630 Intel Core i5-7300HQ On Board
Intel UHD Graphics 620 Intel Core i5-8250U On Board
Intel HD Graphics Intel Core i5-460M On Board
Intel HD Graphics 2000 Intel Core i3-2100 On Board
Intel HD Graphics 4400 Intel Core i3-4170 On Board
Intel HD Graphics 5500 Intel Core i3-5010U On Board
Intel HD Graphics 4400 Intel Core i3-4030U On Board
Intel HD Graphics 4400 Intel Core i3-4030U On Board
Intel HD Graphics Intel Core i3-550 On Board
Intel HD Graphics 2000 Intel Core i3-2100 On Board
Intel HD Graphics 3000 Intel Core i3-2365M On Board
Intel UHD Graphics 630 Intel Core i3-8100 On Board
Intel Core i3-8100 Intel UHD Graphics 630 On Board
Intel 945GM Express Intel i82945G On Board
Intel GMA 950 Intel i82945GM On Board
Intel HD Graphics 3000 Intel HD 3000 On Board
Intel GMA X3000 Intel i82965G On Board
Intel GMA X3000 Intel i82965G On Board
Intel GMA 950 Intel i82945G On Board
Intel GMA 950 Intel i82945G On Board
Intel G33/G31 Express Intel G33/G31 Express On Board
Intel GMA 450 Intel 4 Mobile Series Express On Board
Intel HD Graphics 630 Intel HD Graphics 630 On Board
Intel GMA 500 Intel SCH US15W On Board
Intel HD Graphics Intel Pentium P6100 On Board
ALI CyberBlade XP Trident-ALI ALI M1651T On Board

Best Tools to Stress Test Graphics Cards [2023]

Contents

GPU stress testing is the only way to find out how much performance juice your graphics cards packs inside. A reliable GPU stress test tool helps in pushing a graphics card to its limit, this helps in yielding deep insights about any performance or stability issues.

In simple words, these stress test tools tax your graphics card by running complex graphical simulations. These simulations for a few hours to find out if a graphics card really stays stable in performance or crashes within this time period. Within this time period, you can monitor the temperature, power consumption, and performance of your graphics card.

There are several applications on the internet to stress test a GPU. Here in this guide, I’ve only listed the ones that I’ve personally used. All of these tools are free to use, but if you want deeper insights into your graphics card, then you’ll have to buy their paid plan.

If you are a PC gamer, then stick with the free plan and if you review graphics cards for your audience, then I’ll recommend you go with the paid plan.

Best Benchmarking Tools to Stress Test A Graphics Card

3D Mark: Overall Best Tool for Casual Gamers & Hardware Reviewers

Source: 3DMark

3DMark is one of the most popular benchmarking tools to tax your graphics card or the entire build. It has a very friendly interface which allows you to compare and test the performance of different hardware inside your PC.

This tool comes up with several benchmark tests to evaluate your build’s performance in different workloads like content creation, basic computing, and gaming.

You can run complex graphical scenarios to stress test your card. Among some of them are the Time Spy and Fire Strike benchmarks that test the patience of the most powerful graphics cards on the market.

At the end of each test, you’ll get an overall score which you can then use to compare with other benchmark scores across the platform.

3DMark also provides in-depth information about your graphics which you’ll hardly find from the manufacturer.

This tool supports DirectX 11 & 12 along with added support for ray-tracing and DLSS. In this way, you can quickly know how your graphics card will perform when you turn on the ray-tracing and DLSS at the same time.

Whether you’re a gamer or enthusiast, 3D Mark gives you an in-depth look at every aspect of your graphics card. This tool allows you to measure your GPU performance from every angle.

FurMark: Best for Extreme Testing

Source: FurMark

When it comes to taxing your GPU with 100% workloads, there’s no better tool than the FurMark. I personally recommend this tool to professionals or users who often overclock their graphics cards.

For beginners, I strongly recommend sticking with the classic OpenGL test to gauge the performance of their graphics card. So, if you have an entry-level or mid-range graphics card, then you can run the OpenGL test to gauge the performance.

For high-end graphics cards, FurMark simulates a series of intense graphical tests, some of those tests include a full-screen antialiased 3D graphics test and a GPGPU test that involves OpenCL to stress test to its limits.

Just like the 3DMark, the FurMark also provides a deeper look at the temperatures, power consumption, frame rates, voltage, clock speed, and other useful factors. All of this information can be used to identify any thermal or bottlenecking issues.

FurMark also gives you a detailed report on issues like GPU freezes, crashes, or artifacts. So, if you are a hardcore gamer, overclocker, or hardware tester, FurMark is a great tool to get valuable insights about your card.

You can use this tool to stress test any Nvidia, AMD, or Intel video card. However, keep in mind that Nvidia underclocks their cards for FurMark to avoid any physical damage as a result of overheating. So you may encounter lower scores if you tax an Nvidia card with FurMark.

Unigine Superposition – Best for Testing Gaming Performance of GPU

Source: Reddit

Some benchmarking tools are designed for testing gaming performance, and Unigine Superposition is one of them. To be honest, this is the tool I used to test the Nvidia RTX 3070 Ti graphics card and it gave me a really tough time with that upper mid-range chip.

Well, you can also use the simple Unigine benchmark tool to stress test your card, but I’ll recommend going with the Superposition version. This tool is designed to measure the synthetic and real-world scenarios build by a graphics card.

If somehow, you get bored with the Superposition environment, you can try the Heaven and Valley simulation which are super complex 3D environments to render for a graphics card. Unigine has added 900 objects which include dynamic lighting and VR modules.

All of this results in a very complex gaming environment that you’ll even not find in the most advanced AAA games of the time. This means that the Unigine Superposition will stress test your GPU like no other benchmarking tool on the list.

Unigine Superposition allows you to monitor all the important measures like temperature, voltage, power consumption, average frame rates, etc.

Moreover, you can compare your scores with other Unigine Superposition users across the platform. It’s a complete benchmarking and monitoring tool for your graphics card.

V-Ray 5

Source: Chaos Developer

This is another popular platform for benchmarking your graphics card. V-Ray 5 includes GPU-accelerated path tracing, adaptive image sampling, and unbiased light sampling to simulate and render stunning visuals.

The V-Ray 5 is free to use tool which is used by professionals for creating 3D graphical environments. The tool is not as advanced as the 3DMark and FurMark, but it still offers valuable insights about your card.

The tool is incredibly fast and easy to use. You can also build your own complex 3D environments within the tool. I don’t recommend this tool for beginners, but if you have a little bit of knowledge of V-Ray Sketchup, then this is the right tool to with.

MSI Kombustor

Source: Geeks3D

Everyone knows that MSI offers reliable tools for tuning and overclocking PC hardware. The MSI Kombustor is one of my favourite applications to stress testing a graphics card. When combined with MSI Afterburner, this tool forces your graphics card to run at its full capacity.

This tool is specially designed to test the stability and thermal performance of a graphics card. The Kombustor makes use of OpenGL or Vulkan to run 3D-intensive simulations to tax your hardware.

MSI Kombustor uses several tests to measure the performance of your graphics card. It works with most graphic card testing APIs like FurMakr, 3DMark, GPGPU stress test, and VRMark.

If you are a hardcore gamer with a powerful graphics card like RTX 3090 Ti, RTX 4080, or RTX 4090, then give MSI Kombuster a try to tax these beasts.

How to Stress Test A GPU

In order to stress test a GPU, follow the steps below:

  • Download any stress-testing GPU from the list, and install it. Once installed, launch the application.
  • If you are running the test on a laptop, then make sure the charging is plugged in as stress testing consumes a lot of power.
  • Run the benchmarking tool and set the stress test level to maximum.
  • Make sure you run the stress tool for a longer period of time to fully test the hardware.
  • Keep an eye on the temperature of the graphics card, and if the temperature surges from the safe limit, stop the test immediately.
  • Run the test under different power states, voltage levels, and cooling methods. Make sure your graphics card comes with adequate cooling.

Why Do You need to Stress Test A GPU?

Stress testing helps in:

  • Checking the stability and reliability of a graphics card
  • Determining how much maximum temperature a GPU can hit while consuming the maximum power
  • Identifying any technical issues
  • Verifying whether it is safe to overclock a graphics or not
  • Identifying if your GPU is bottlenecking your hardware

Alternatives to Synthetic Stress Testing

First of all, I highly recommend using the above-mentioned tools for stress testing your card. But if you want to measure the performance by other means, then you can simply play some heavy AAA games on your graphics card. Playing graphically intensive games is also the best way to measure the performance juice of your chip.

Some of the games that you can play to stress test a video card are listed below:

  • Shadow of the Tomb Raider
  • Assassin’s Creed: Odyssey
  • Red Dead Redemption 2
  • Metro: Exodus
  • Horizon Zero Dawn
  • Dying light 2 Stay Human 
  • Spider-Man Remastered
  • Far Cry 6 
  • Cyberpunk 2077

FAQs

Can stress testing damage a graphics card?

No, stress testing cannot damage a graphics card unless you are doing it within a safe temperature limit and your graphics card has enough cooling on it. Make sure you run stress on a graphics card that comes with a better cooling solution. Watch out for the maximum temperature and make sure that it does not climb over 95° C.

How long should I run a GPU stress test?

I personally run a test for one hour or so. You can run the tests for more than one hour, but this can lead to overheating issues, which ultimately can damage your graphics card if there’s no proper cooling on it.

Verdict

Finally, these were some of the best tools for stress testing your GPU. I personally recommend you to either go with 3DMark or FurMark to measure the performance of your hardware from every aspect. Both of these tools provide a deep insight into every minor detail of a graphics card. There are several tests that you can run in order to benchmark your card.

Masab

Hi, this is Masab, the owner and founder of the PC Wire. I’m a PC enthusiast who loves to talk about computers. I have been testing PC hardware for several years now, and I hope my knowledge would answer your queries thoroughly.

Intel limits the performance of video cards

Home » News » Intel limits the performance of video cards. There is a way to make them faster. But there is a way out! It turned out that the chips were artificially slowed down by one of the manufacturer’s technologies.

Following the introduction of the first Intel Arc graphics cards, which were designed with gamers in mind. Initially, the manufacturer introduced weaker chips: Arc A350M and A370M. They are suitable for thin and light notebooks.

Although there are no models with new chips on our market yet, tests of the first samples have already appeared in the Korean media. Very interesting observations were made by the BullsLab Benchmarks tester.

BullsLab Benchmarks tested the Samsung Galaxy Book2 Pro , one of the first models to feature the new graphics from Intel. The laptop was equipped with a processor Intel Core i5-1240P , 16 GB memory LPDDR5 and graphics card intel Arc A350M .

Standard graphics performance is not very impressive. Below you can watch the unboxing video and the first hardware tests (in Korean).

BullsLab has noticed that notebook performance is artificially limited by Intel DTT technology ( Intel Dynamic Tuning Technology ). Theoretically, this function is designed to adjust the power of CPU and GPU. According to laptop workloads ( analog SmartShift from AMD and Dynamic Boost from Nvidia ). In practice, this does not work as expected and limits the performance of the GPU .

Disabling DTT gives a huge increase in performance ( at the level of several tens of percent !). See a comparison of the performance of a laptop with Intel DTT enabled and a laptop with Intel DTT disabled in several popular games.

Limited performance isn’t the only issue with the Intel Arc graphics cards. Testers also reported freezes ( braking ) in some games. Accordingly, this made it impossible to play on their new laptops.

Thus, it seems that graphics chips are not yet perfected and suffer from the so-called « children’s problems «. This is quite understandable when using new equipment (or released too early). It remains to be hoped that the manufacturer will eliminate the shortcomings in the new versions of the drivers (more problems are fixed with the next version).

Book CPU Galaxy GPU intel SAMSUNG Video card review performance

Computer and office equipment diagnostic tools and devices

The number of various electronic equipment in operation is growing every day. A significant part of it can only function normally with regular maintenance, because, like any other equipment, it sometimes breaks down and needs to be repaired. About devices that help to perform these types of work, and will be discussed below.

Today, the most common office equipment is a computer and its peripherals (printers, video monitors, drives). This, unfortunately, cannot be said about diagnostic tools — they are still very rare. There are several reasons for this: the high cost of such devices, the infancy of domestic service departments and, to a large extent, the developed capabilities of self-diagnosis of computers and peripherals (in the case of simple malfunctions, the computer is able to diagnose itself). The available diagnostic programs allow, in particular, to test memory, floppy and hard disk drives, external interfaces (for this, it is enough to install plugs in the connector, in which the inputs are connected to the outputs). In addition, along with individual modules (for example, a sound card), in addition to drivers, manufacturers also supply specialized programs for their diagnostics.

But in order to run any program, the computer must first boot. If, after turning on the power, it does not show signs of life, then, using the modular design of the computer, you can try to find the malfunction by replacing it. This method allows you to identify most of the faulty modules. True, it always carries the risk of failure of a new module when it is installed in a faulty computer (especially if the computer’s inoperability is caused by a malfunction of the motherboard’s bus drivers).

MOTHERBOARD DIAGNOSIS

The motherboard diagnostic tool is a module connected to the motherboard’s system backbone. They are represented by a fairly large number of varieties that differ in the type of supported backbone (ISA, MCA, PCI) and the set of features. The functionality of simple devices is limited to displaying BIOS POST codes (power on self test — the results of self-testing after turning on the power), indication of trunk signals and control of the supply voltage. In their work, they use BIOS tools or tests loaded from ROM on the module itself. More sophisticated devices also perform diagnostics on addressing, direct memory access, and interrupts. In addition, the ROM may contain universal test programs for all the main components of the computer (keyboards, interfaces, drives).

All the above devices have tests selected by means of switches and displayed on LED digital and position indicators. Consequently, the main role in these systems is assigned to a person, and automation and documentation of the testing and diagnostics process is impossible. More powerful diagnostic systems are free from this drawback: they contain a processor, thanks to which testing is performed automatically. Control and display of results are carried out using software from another computer: it is connected to the main device via a serial interface. Such systems not only carry out full testing of the computer in automatic mode (including checking the keyboard interface), but also implement other additional functions (signature and logic analyzer), the presence of which allows them to be used for diagnostics in serial production.

TESTING MEMORY MODULES

Perhaps the most common problem is the unstable operation of RAM, due to which the computer can periodically fail at the most inopportune moment. Such malfunctions can only be determined with the help of specialized testers. Testing without removing the memory modules from the computer allows you to identify only completely failed memory modules. The quality of testing on specialized equipment is significantly higher, since it is performed under stressful conditions, using more complex algorithms, at increased or decreased voltage, and with varying time parameters for write/read procedures. In addition, some testers can measure the actual timing of memory modules. Due to the variety of memory modules available, the testers have several types of connectors or come with adapters.

DIAGNOSTICS OF DISK DRIVES

As noted above, for testing hard disk drives, universal test programs are quite enough (of course, if a reliable interface is available). The situation with floppy drives is a bit more complicated. If a floppy disk in such a drive is read and written, this does not mean at all that it will be perceived by drives of other computers. To make sure of compatibility or achieve it by aligning the heads, you can use reference diagnostic diskettes. The level of the signal taken from the head can be estimated using an oscilloscope. However, the setup process can be greatly simplified by using a special test program. Such a program displays the results of reading information in real time on the computer screen and, thus, simplifies the assessment of the positioning accuracy of both heads.

REPAIR OF VIDEO MONITORS

Most universal diagnostic programs allow you to check the quality of the video monitor in various modes. But for this you need a computer with an appropriate video card. Meanwhile, this work can be greatly simplified by using test signal generators. The generators can output all video components (VIDEO, Y, RGB, V-SYNC, H-SYNC) and composite video in digital and analog form over a wide range of scanning frequencies. To ensure compatibility with various types of video monitor inputs, they may have different types of connectors. In addition to generating a sweep in a given mode, the generators can produce a monochrome or color test signal for adjusting video monitor circuits.

TESTING SERIAL AND PARALLEL INTERFACES

Very often, communication problems caused by serial or parallel interface failures can be diagnosed using software tools and plugs in which the inputs are connected to the outputs to create a loop.

PRINTER DIAGNOSIS

The printer test is a bit easier. Most of them have advanced built-in diagnostic tools. Sometimes part of these tools or information about error codes is available only to specialists from branded service centers. As for dot matrix printers, due to their simplicity, widely available diagnostic tests are quite enough. But laser printers require a special approach. On the one hand, there are too many components in them, and if they fail, it is very difficult to identify the cause of the problem. On the other hand, their design is such that it is impossible to look inside during their operation. In addition, some models simply cannot work without a computer, as they do not have their own display and control tools. Therefore, the diagnosis of laser printers without special equipment sometimes resembles fortune telling on coffee grounds. The solution to these problems gives a laser printer tester. This rare device provides measurement of all voltages necessary for the operation of the printing node, elimination of all blocking from remote nodes, emulation of the keyboard and display for working with printers designed for software control, generation of test images. It should be noted that universal testers are designed to work with a fairly wide range of printer models from different manufacturers that use the same type of drives (print unit and cartridge).

TESTING PATCH CORDS

Even in a medium-sized organization, service personnel have to constantly test the cords of various peripherals or, if they are not labeled, determine their wiring diagram.