computer hardware troubleshooting pdf

Hardware troubleshooting 1. Check your power cord again is not plugged well is very necessary, host, monitor! And make sure your power is unblocked. 2. Disassemble the host to see if your memory stick is plugged in, or unplug the memory strips, and try 3. The discharge of your computer, (unplug the power cord, press the power-on key) 4. Discharge Your B

operation Knowledge knows less, in the operation does not pay attention to the operation of norms and safety, so some parts of the computer will cause damage. such as live Plug and pull equipment and board, installation equipment and board when the excessive force, resulting in equipment interface, chip and board, such as damage or deformation, which caused the failure. when a computer fails, we first ha

interface driver (typically the second video card). 6 motherboard virus protection causes system to not install properly Case When my Computer installs Windows XP, there is always a line of warning prompts, how to solve? [Case analysis Processing] Now the motherboard in order to prevent viruses such as cih attack, so the virus warning is integrated, and when Windows XP is installed, the installer writes some of the startup information to the boo

Computer in the start-up and operation process, if there is a fault will appear corresponding error message, we can follow the prompts to resolve the current problem. But most of these tips are in English prompts or machine code, which makes people deeply puzzled. This article collects the computer in the startup, the operation process often appears the error message information, and gives the complete solu

start the process, if the computer does not have the hardware change, when starts the computer to call the ESCD data directly to allocate the system resources, the control computer operation, To save your computer's startup time. When the user changes the hardware of the

, output current is not normal very easy to cause a number of failures, many times the user to the motherboard, graphics, hard disk have been checked all have not found the reason, but this is the power in mischief. 3. Simple before complex. In case of computer malfunction, start with the simplest reason first. Many times the fault is due to loose data lines, too much dust, bad card contact and so on. After the simple method is tested, consider whet

supply is insufficient, and the output current is abnormal, which may easily lead to some faults, most of the time, the reason why the motherboard, video card, and hard disk can't be found is unknown. 3. simple and complex. In the case of a computer failure, first check from the simplest cause. In many cases, the fault is caused by loose data lines, excessive dust, and poor contact with plug-in cards. After testing the simple method, consider whether

[Computer tutorial] detailed diagram of System Installation Process Tutorial] computer learning 2.0 [Experience] _ computer repair (you can open your own computer repair shop after reading it !) 4 years experience in computer maintenance According to these eight items, it

Ntdetect.com* For other operating systems, NTLDR loads and runs Bootsect. dos and then transmits control to it.The windows NT process ends. 9.Ntdetect.com search for computer hardware and send the list to NTLDR to write the information into HKE Y_LOCAL_MACHINEHARDWARE.10.then ntldrloads ntoskrnl.exe, Hal. dll, and system information.11. Ntldr searches for a collection of system information and loads the de

method The incremental method is based on the minimum system method, each time adding only one part/device or software to the system to check whether the symptom disappears or changes, in order to determine and locate the fault site. Note: Gradually add the removal method with the replacement method in general, so as to accurately locate the fault site. 　　Iv. Segregation Law Isolation is a method of judging hardware or software shielding that may

Computer now has become a daily necessities of life, then how much do you know about computers? The following small series for you to organize some common computer hardware knowledge, quickly to learn! Computer hardware, including all the physical parts of a

jitter or flickering, the exclusion method is to put the computer in another empty place and then observe, you can also take a good computer from another place to test and eliminate it. Try not to bring the display near a large electrical product. You can also restart the computer monitor to check whether the current display has the automatic degaussing function

For some older or assembled computers, black screens are relatively prone to faults. There are multiple hardware causes for black screens on the computer, such as damage to the display, damage to the video card, poor contact with the video card, etc. To eliminate black screen faults, a combination of elimination and replacement should be adopted. The basic principle is to first replace

The crash is something that makes the operator rather annoying. When the performance of the crash is "blue screen", unable to start the system, the screen "freeze" no response, the mouse, keyboard can not be entered, the software operation abnormal interruption. Although the cause of the crash is a lot, but same, the reason is never out of hardware and software two aspects. One, by the hardware cause of the

When the computer fails, first determine whether the computer failure is a software failure, if not a software failure to check hardware failure. Computer hardware failures are processed in the following order. 1. Judge The Fault Before the repair failure, start with as mu

Computer Auto-restart and auto-Shutdown failures often occur, seriously affecting normal operations. Here, we analyze common fault phenomena and provide effective solutions to help you solve such annoying problems. I. Software causes that cannot be ignored ● The Startup Program of win200 and WINXP is incorrect and then automatically restarted, but the system still cannot be started after multiple restarts. Fault Analysis: In the default se

sound. If it is not a memory reason, please switch to a normal CPU and power on again. If the black screen still appears, you can only change one motherboard, and the problem should also appear on the motherboard. In addition to the hardware cause of the black screen phenomenon, there are the following three aspects of the "soft" cause may cause "black screen." Software articles One, hardware accelerati

What if the computer suddenly has no sound? Today, there is a strange problem, the computer suddenly no sound, just listen to the song when the computer also has a voice, and later with another friend with QQ voice through the words, no matter what play software (cool dog, chin listening, cool music box, etc.) play music, video,

Hardware issues Phenomenon: The system can start, there is video, failure prompts, at this time can be based on the tips to determine the fault site. The following are some common troubleshooting tips:First, the hint "CMOS Battery State Low"Reason: CMOS parameters are lost, sometimes can be started, using a period of time after the crash, this phenomenon is mainly due to the lack of CMOS power supply. For