【 Weak current college 】 computer memory fault

CPU and memory is a computer in two very important components. Because of its almost entirely of semiconductor chips, under normal usage conditions and the possibility of failure. But once the CPU and memory slightly quality problems or installed improperly used, will cause the system to function properly with serious consequences.
First, the CPU itself quality problems caused by the fault
In all computer accessories, can be said that the CPU itself failure rate is the lowest, this is because the CPU has a strict production and detection system as integrated very high high-tech products, due to the CPU itself has the quality problem is causing the failure is very rare. But everything is not absolute, as the CPU clock speed increased, the number of transistors inside integrated more and more, increasing high-speed Cache capacity. Because the Cache problem causes the system to run unstable situation are increasing. Especially the part of the Cache problem products, manufacturers will use masking it sold policies after the downgrade, lawless JS provides fraud opportunities.
If unfortunately got to shield Cache open product, CPU failure probability will significantly increase. Therefore, when the system has run large programs instability in the exclusion of software and other accessories, we have to consider the quality of the CPU itself, you can enter the motherboard BIOS setting CPU internal Cache temporarily shut down, if the situation improves, the CPU has the possibility of quality problems are very big.
Another long-term overclocking results in "electronic migration" effect, so that CPU "chronic", if overclocked death rates too high or the voltage settings are incorrect, you may keep the CPU "sudden death". CPU failure there is a particular case is the CPU itself there is a problem on the design, such as having to make a lot of heated discussions of Pentium CPU "except zero overflow" BUG. CPU once damaged phenomenon or more obvious, is on latersystem without any response, the solution can only be replaced.
2. CPU riser card and socket trouble
CPU itself failure rate is not high, but its associated fittings caused problems and the possibility of system failure or larger. For example, many friends using riser card at old Motherboard upgrade tulading Celeron CPU, if riser exist quality problems, can cause no reactions when powered on.
We all know the maximum power consumption of accessories I'm afraid it is CPU, operating current of up to 10 amps, riser card provides CPU power is required, the related contact long working in high-current, easily contact site fever oxidation causing poor contact. Some cheap riser card, contact Department does not have a gold-plated handle, this problem is more likely to occur. Then you can open the case, unplug the adapter, the idea of using ethanol, cleaning out a report in the "Goldfinger" above, the problem may be oxides. For a quality motherboard, CPU slot similar problems may occur, or does not provide enough current to cause CPU cannot normally use.
In addition to install CPU Socket class, we must pay attention not to the pins. Although CPU slot is called a "zero insertion force," but if the quality is not good, the slot CPU insertion of resistance or large, we remove or install the CPU attention to maintain balance, especially installation should pay attention to check for bent pins, do not blindly use brute force pressure or pulling, otherwise it is possible to break the CPU pins. Percentage of the CPU pins, commonly users themselves are very unmanageable, and that such failure dealers will not be responsible for the replacement, you can send to the professional service facility, through a special welding process, it is possible to repair. Third, the CPU operating temperature and heat issues
CPU is the computer in most parts of fever, so heat is not easy to cause instability or even destroyed. Here first, the CPU temperature problems, specific workingtemperature of the CPU is very complex, and the clock speed, production processes, working voltage, thermal conditions, many factors are relevant. General CPU operating temperature than the ambient temperature is high 40 ° or less is normal. CPU operating temperature more access via motherboard monitor feature, but here to draw attention to the accuracy of the temperature measurement is the motherboard and not everyone thought that high, in the BIOS to the CPU temperature, only for reference.
In fact, we are unable to accurately measure the CPU core temperature as long as the computer is working properly, without frequent crash, no unnecessary. CPU temperature in addition to the motherboard comes with temperature measurement apparatus, we also can output power of the CPU and the fan power to estimate.
CPU cooling is not good cause CPU failure of those responsible, this fault in the post run time system frequently panic even reboot. To solve the problem of CPU cooling, not only to the situation under the CPU's heat to purchase the required cooling fans, such as pure copper turbofan, high-speed ball bearing fan, etc, liquid, we need to pay attention to the correct installation of the cooling fan. Due to the narrow, CPUDIE causing heat more focused, as a result of the use or non-conductive media affects cooling giant, and so do not clean the qualified thermal grease, according to the difference between the measured dissipation can more than double. CPU fan runs we should always pay attention to check, it is best to add regular cleaning and lubricating oil. In addition to the CPU itself, on the whole of cooling chassis thermal also can not be ignored, should adopt volume spacious, well-designed chassis.
4. memory fault diagnosis and treatment
If the memory is installed improperly or have serious quality problems, then when powering on the system emits a continuous chirping, may also be in memory at the screen gives you an error prompt which kind of memory failure phenomenon more obvious, is also very easy by reinstalling or replacing another memory stick to be recognized and addressed. Reinstall the memory when carefully used alcohol and use the eraser to clean his "Goldfinger", and more for several installation slot. At the same time, please look carefully whether chip burning, electricalCircuit board traces of damage. In addition some old memory (such as EDO RAM), installs when necessary doubled, Rambus memory must be a memory slot on the motherboard correctly populated, if not populated, you need a dedicated Rambus shape is similar to the "threaded" in free slots.
But most memory failures in system instability. Such as system frequent "blue screen of death" and "registry corrupt" error or Windows often automatically goes into safe mode, is usually caused by poor quality memory causing instability. For such a failure, in addition to replace the memory, we can try to adjust the motherboard BIOS memory related parameters. If the memory is not up to quality in the BIOS settings of the indicators required, will allow memory work in non-steady state, proposed in the BIOS itemized reduce CAS, and other parameters of the set value. If your memory is not brand-name manufacturers use high-quality products, the best choice for the SPD to decide various parameters.
Most of the time memory work speed and bus frequency is consistent. But now many motherboards support "asynchronous memory speed", which means that the memory speed and the motherboard bus speed. In this kind of motherboard, BIOS settings there Host-Clock (bus frequency synchronization), HCLK-33MHZ (bus frequency reduced 33mhz), HCLK + 33MHZ (added 33MHZ) and other options. If the memory is not stable and we can set the memory work speed is lower.
5. memory compatibility failure handling
Memory is the most easy to upgrade the computer of one of the accessories. But if you upgrade it incorrectly can cause system instability, the memory capacity is not fully recognized, even does not power on, fault.
For example, double-sided memory often takes two "BANK", so in some motherboards may have compatibility problems, only half the capacity. In addition we are very concerned about the two different sizes of memory stick can be used in the same Board, in fact, different manufacturers, different models and different speed of memory stick can be used together, but the stability of the system have a certain impact, particularly affects the overclocking performance. Use the attention in the motherboard BIOS in the memory of the argument was conservative principles "that it high", such as DDR266 memory and DDR400 memory mix, the memory parameters according to the requirements to set DDR266, and should be disabled to prevent SPD function caused confusion.
In addition the i865/i875 motherboard to achieve dual channel memory technology specification and capacity must be used the same two or four memory. Only strictly follow DIMM1 + 2 (Board only two memory slots), DIMM1 + 3, + 4 DIMM1 and DIMM2 + 2 + 3 + 4 four memory installation method, you can set up a dual-channel mode.