How to test the computer overclocking is stable?

1, calculate the high pi time how long

superπ

Superπ is a software developed by the Jin Tian Research Institute of Tokyo University of Japan to calculate PI, the original intention of the designers was only used on Hitac s-3800/480 supercomputer, because in the calculation of pi value, the test of the CPU's multidimensional computing capacity, Therefore, Japan's overclocking enthusiasts were transplanted to the PC, using superπ to test the performance after overclocking, and then slowly introduced to China, many hardware laboratories also use this software as the basis for testing the stability of the CPU.

Run the program, click the "Run Calculation" button, this time will pop up a dialog box you choose to run the number of Pi, the general use of 1.04 million-bit can be confirmed to start the operation, will soon be able to get the results shown in Figure 1, the time is of course the shorter the better. If your requirements are higher, you can allow superπ to run 2.09 million-bit or even higher operations, so that the CPU can run at full capacity under more severe conditions, if you can pass 33.55 million tests, then your system will be able to operate in any harsh environment stable.

2. Is my CPU stable?

Hot CPU Tester Pro

This is a veteran test software, designed with a unique Defecttech technology, developed by Opusware Enterprise, which tests stability by allowing the CPU to run at full capacity for a long time to improve temperature. To detect the ability to achieve overclocking or defective CPU, if overclocking after the CPU can? Hot CPU Tester Pro stable running for more than 5 hours, then overclocking can be considered to be successful.

1. Limitations of the free version

Although Hot CPU Tester Pro provides a total of 14 test items, if you are using a free version, you will only be able to complete the complex matrix (complex matrix), calculating pi (calculate pi value), sorting Algorithms (sorting algorithm), Prime test (Prime number Test), Memory, HD, MMX and other projects, if you want to test fast Fourier Transforms (Fast Fourier conversion), chipset, L1 Cache, L2 Cache, SSE, SSE2, 3dnow! and other projects, you must click the "Purchase Hot CPU Tester Pro" button to buy enhanced version.

If you are using an enhanced version, switch to the Options tab, where you can select the test project that you are interested in, and you can also freely define more advanced options. However, for our regular users, the free version of the functionality provided should be enough to use.

2. The stability of measuring system

Hot CPU Tester Pro provides computational power testing, single test, performance testing and other test projects, here for a brief introduction.

Computational Power Test

Run the program by default and switch to the "Diagnotisc" tab. We can test the computational power here, as shown in Figure 2, as long as you click the "Run Test" button to start the test, the test will be continuous operation of each project, in the process of your CPU utilization will continue to maintain at 100 %, this can test the stability of the CPU, at the same time will produce greater heat, if the system can be stable running more than an hour, then it can be considered to be qualified. However, due to the CPU resource occupancy rate at 100% during testing, so any other operation at this point is very dangerous, most likely to cause the system to crash, it is best to close all running programs (including the program that resides in the background of the system), if you really need to run some programs at the same time, please Options→hot CPU Tester tab, set program Priority to Standard or low. At the end of the test, we can see in the lower right corner of the three boxes to start testing and end the test time, of course, the shorter the better.

Single Test

Switch to the "buin-in" tab, where you can run individual tests such as CPU burn-in or memory burn-in, allowing users to set the number of tests and the size of the test memory, and then click the corresponding button directly.

Performance test

Switch to the "Benchmark" tab, click the "Run Benchmark" button to conduct the benchmark, the test project in the middle window, the test will be completed in the "Total Score" box to display the corresponding score.

View System Information

It is worth mentioning that hot CPU Tester Pro also provides the ability to view system information, switch to the "System Info" tab, as shown in Figure 3, where you can view the chipset model, motherboard model, CPU manufacturer, CPU clock frequency, memory capacity, The information, such as cache, is simple, but very accurate. In addition, you can see if your CPU supports multi-processor System (multiprocessor technology), hyper-threading technology (Hyper-Threading technology).

3. The ultimate test

Prime95

Prime95 was originally the American mathematician and program designer George. Wartman, Jankulovski jointly developed a search for the largest prime number of the distributed computing software, the world's math enthusiasts can download the use of free, this is the famous "Gimps (Internet Mason Prime number of large search project)." This software client is a running in the background of the program, as long as a boot automatically run, will not affect the normal work of users, due to the use of the Internet on a large number of computer idle time to calculate, you can get the equivalent of supercomputers computing power.

If you use Prime95 to test the stability of the system, it will be the most "brutal" in all the pager software, it is said that other test software can not find the stability problem, even if the system can successfully pass 4.19 million tests in the superπ, it is not possible to survive in the Prime95 a few minutes, So many overclocking players use Prime95 as the basis for overclocking success.

1. Pre-test configuration

After entering the main interface, we should first select "Options→cpu" to open the "CPU Settings and Information" window to set, the default setting of the time period is 12 hours, from the 7:30~23:30 points, this time is really too long, Expect to be able to stick to the number of players will not be, or quickly change it again. For example, we can set the start time before the end of work, the exit time on the casual you, in fact, according to the author's experience, there are more than 3-5 hours is enough.

2. Stability Test

When the setting is finished, select "Options→torture Test", and the dialog shown in Figure 4 will pop up to require the user to choose the test method, "Blend" by default, and the stability test for both CPU and memory. Alternatively, you can choose either "Small fftx" or "In-place Large FFTs", which focuses on testing the CPU and can run other programs at the same time while testing, such as browsing the web, watching videos, running games, and so on, which focuses on testing memory and generally cannot run other programs at the same time.

Click the "OK" button, you can start the stability test, if you do not choose the "In-place Large FFTs" test mode, then Prime95 run will not consume too much system resources, we can rest assured that other operations. During the test, we can see a red program icon in the system tray area, which turns yellow if the test is not finished, indicating that the test failed.

3. Performance Test

Prime95 also provides performance testing of the project, select "Options→benchmark" to test system performance, testing in a certain amount of time spent as a standard, of course, the shorter the better. Here to explain, because Prime95 performance test is too harsh, mainly will consume a lot of system resources, very short time can rise to 100%, so it is very easy to cause the system crash and can not complete the test, but even if not passed the test, in fact, can not represent the stability of the problem, Because the working principle of Prime95 requires that the integer operation of the CPU can not have the slightest attenuation, the memory and CPU data exchange delay time must be within a certain range, so it is possible to make a stable system can not pass the test.

Therefore, in most cases, we mainly use Prime95 to test the success of CPU overclocking, and as for performance testing, it is recommended that you do not force tests without testing.

How, see the above introduction, do you also have a kind of let their love machine eager to impulse it? However, before the "extreme torture" of your CPU, be sure to first back up good important data yo.