1. Error: MONITOR LED IS BLINKING
Solution: Check all the connections like Monitor Cable, Data cables, RAM, Display Card , CPU connections.

2. Error: CONTINUOUS THREE BEEPS
Diagnosis: Problem in RAM Connection.

3. Error: THREE BEEPS ( 1 Long 2 Short)
Diagnosis: Problem in Display Card Connection

4. Error: THREE LONG BEEPS PERIOD WISE
Diagnosis: Problem in BIOS or RAM (Basic Input Output System)

5. Error: CONTINUOS NON-STOP BEEPING
Diagnosis: Key Board Problem (I.e.; Some Key is pressed for Longer time)

6. Error: AUTOMATIC RESTART
Diagnosis: RAM connection PSU

7. Error: NO DISPLAY ON THE SCREEN AT ALL
Diagnosis: Hard Disk cable connected wrongly.
Solution: Connect rightly seeing the Red mark (Faces power supply) and then Restart.

8. Error: POWER LED IS OFF
Solution: a. Check main power cord b. Check S.M.P.S. c. Check Mother Board connection

9. Error: SHOWING CMOS ERROR
Solution: Replace 3 Volt battery of Mother Board . Set Original Settings Manually.(Refer CMOS Setup chart) Enter your search terms then
submit search form

10. Error: SHOWING FDD ERROR OR FLOPPY DRIVE IS NOT WORKING PROPERLY
Solution: Check Power cord of FDD , Data Cables , set CMOS & Finally the Check drive.

11. Error: SHOWING HDD ERROR OR HARD DISK FAILURE
Solution: a. Check Power Cord b. Check connection of HDD c. Check Data cable d. Check Hard Disk parameters in CMOS or Auto detecting
Setting Partitions by
Fdisk Command, then format it to set track 0.

12. Error: MOTHER BOARD HANGS DUE TO UNSTABILIZED POWER SUPPLY
Solution: a. Check S.M.P.S b. RAM not functioning properly. c. Software problem (due to using pirated software) d. CPU fan not functioning
properly

13. Error: DANCING SCREEN
Solution: a. Check Display card connection b. Virus Problem c. Video Memory Problem

14. Error: SHAKING SCREEN
Solution: a. Earthing problem b. Magnetic waves comes around.

15. Error: CPU CABINET SHOCK
Solution: a. Check Earthing b. Check main power cord.

16. Error: NON-SYSTEM DISK ERROR
Solution: a. Floppy Drive having different disk (Non-Bootable Disk) OR CMOS Parameters for Hard Disk may not be set properly. b. Hard Disk Partitions may not be
created. c. Hard Disk may not be formatted.

17. Error: MISSING OPERATING SYSTEM
Diagnosis: The System files missing namely Ie; command.com} - User File IO.SYS & MS_DOS.SYS } -Hidden Files.
Solution: These above three files required for Start up of the system that can be transferred by using SYS C: Command OR While the time of formatting by using
Format c:/u/s

18. Error: MISSING COMMAND INTERPRETOR
Diagnosis: maybe the file Command.com is corrupted OR Infected by Virus OR Some one has Erased it.

19. Error: SHOWING I/O ERROR
Diagnosis: a. The type of Hard Disk in CMOS may not be set properly. b. Operating system used for formatting is not valid

20. Error: SHOWING DIVIDE OVER- FLOW MESSAGE
Diagnosis: a. maybe some Directories or Files crash with other files. b. Use CHKDSK/F or SCANDISK Command to correct it.

21. Error: HARD DISK MAKING NOISE WHILE PROCESSING
Solution: a. Un-stabilized power supply. b. Check for Loose Contact. c. Do not use Y Connectors for Hard Disk. d. It may create Bad Sector OR Weak Hard Disk.

22. Error: HARD DISK HANGS WHILE PROCESSING
Solution: Check for Bad Sector by using CHKDSK or SCANDISK Command. If found format the Hard Disk and set Partition before that area.(This is the only
procedure to use Hard Disk with Bad Sector) OR (To avoid Bad Sectors use Standard Power Supply)

23. Error: HARD DISK NOT DETECTED
Solution: a. Check Power Connector b. Check Data Cables c. Check Jumpers

24. Error: PARTITION NOT SHOWN
Diagnosis: Operating System where the Hard Disk formatted is not supported with present Mother Board. For Eg: Hard Disk formatted with Pentium System will
hide their partitions for 486 System.

25. Error: MMX/DLL FILE MISSING
Diagnosis: maybe the above files may be corrupted due to power failure or Virus. Make available above files from other Computer. OR Reinstall Windows
Operating System. (This procedure will not make any effect on existing Data).

26. Error: WINDOWS REGISTRY ERROR
Diagnosis: This will happen due to sudden ON/OFF of the system.
Solution: Final solution is to Reinstall Operating System.

27. Error: DISPLAY COLOUR DOES NOT MATCH
Solution: a. Configure Display Card properly with their CD. b. The Standard setting for Windows is set it to 800x600 for better performance.

28. Error: UNKNOWN DEVICE FOUND
Diagnosis: May the Driver utility is not provided with operating system .
Solution: Insert Driver CD and install software for the above Device. (Every Device requires driver utility to set active

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