Computer troubleshooting methods FAQ

Today's society, people are generally inseparable from office computers (laptops, desktops, etc.). In the process of PC in use, often there will be some small problems. If you are a computer white, so that when something goes wrong, really big one. So share some common treatment failure problems for everyone:

    一、开机后无法通电现象:
  1. Check whether the energized power cable
  2. Check chassis switch button
  3. The power plug on the motherboard reinsert it
  4. Check chassis power supply is normal (Analyzing Method: with a wire insertion hole of the socket with any green short black jack, and power)
  5. CMOS is cleared of
    two, start phenomenon no signal output power
    (a) no alarm sounds
  6. Re-inserted memory or a memory swap
  7. Remove all of the external device, leaving only the motherboard, CPU, memory, graphics direct boot.
  8. To clear CMOS
    alarm sound (two)
  9. Long ring non-stop: memory error
  10. Stop short ring: poor contact socket or power failure memory
  11. Long and two short: the graphics card is not plugged
  12. A long three short: the keyboard is not plugged in
    (c) is determined by the diagnostic card
  13. Display 00 or FF: indicates normal boot
  14. Always show C1 or C0: memory failure or CPU failure (Some computers appear as E0)
  15. Diagnostic boot card beating codes, to stop DX: faulty memory
    three signal output can not self boot
  16. Power (fault caused by an external device to negative) method using minimum configuration
  17. If two memory, a boot removed; if only one, or may be for a slot to cheat wiping.
    Fourth, the boot does not detect hard disk or CD-ROM
  18. If the two devices is an IDE data connection, see the master disc is set correctly
  19. Check the hard disk boot indicator stays, if it indicates that the hard disk data cable or power cord is not plugged.
  20. Listen carefully whether there is abnormal sound hard drive boot
    V. boot or blue screen of death, keeps restarting
  21. When post press F8 safe mode; (1) to enter secure mode: the drive device manager in the video card, sound card, network offload and restart normal; (2) can not enter: A: the optical disc using the DOS boot tool run MHDD scan test drives, hard to see if there are bad sectors; B: if there are two memory, or remove a slot for a restart.
  22. Reduction of CMOS.
    ? Six, after the boot screen prompts "XXX file is missing ......
    the causes:
  23. File system itself is indeed lost;
  24. Incompatible memory, caused when reading data from the hard disk can not completely get
    resolved:
  25. If that is lost by the system itself, it can only reinstall the system;
  26. If caused by memory, you can replace it with a
    seven after the startup screen will display "ntldr is missing"
    solve: into the PE system, copy the installation disk to ntldr file system root directory. Is to lose the root directory of the system hidden files make it up.
    Eight, the boot more slowly
  27. Remove excess launches in the system configuration program;
  28. The initial size of the virtual memory and the maximum value set to the same;
  29. Delete the temporary file system
  30. Delete the browser's cache
  31. On the system disk defragment
  32. Check if the system disk free space is larger than the corresponding system requirements.
  33. The primary device management will not connected, the secondary channel is set to None.
    Nine, run more slowly
  34. Open the Task Manager, view the number of processes and CPU utilization. A: A unwanted process terminates; B: The process stops the CPU occupancy rate
  35. MHDD scans the hard drive to see if there are bad sectors ****
    ten, only the boot desktop background, without any other object, the mouse can only move no right
    to solve:
    press "ctrl + alt + del" to open the Task Manager, select the new task, enter "explorer".

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Origin blog.51cto.com/kuboy/2443887