Computer monitor When I switched on my PC its monitor and keyboard was not working. I checked the connections. They were okay. Hard disk was working properly. The monitor was showing orange light. Please assist me

A computer that won't start can be both alarming and infuriating, especially if you're on a deadline or you haven't been backing up all your data (like we all tend to do). Don't panic, though-this problem often has a simple solution.

1.If your desktop computer does nothing at all when you try to start it, first check that the power cable is securely plugged in at the back of the computer as well as into a working power outlet. It's amazing how often this is the case.
2.If you're starting from a button on the keyboard, make sure the keyboard is connected to the computer.
3.If the computer is plugged into a surge protector, see if the surge protector has a reset switch that you can push. (If it doesn't have a reset switch and the problem is with the surge protector, it will need to be replaced.) Try plugging a lamp or other device into one of the surge protector's outlets to make sure it's working.
4.If you can hear the computer's fan or hard-disk drive, or if you can see indicator lights on the main unit but the monitor stays dark, make sure that the monitor is connected to a working power source, that it's turned on and that it's securely connected to the computer via the video cable.
5.If the monitor and computer have power but the computer displays a "Non-system disk or disk error" message, check to make sure you didn't leave a disk in the A: drive. If you did, eject it and restart the computer.
6.If the operating system still won't start even though the computer and monitor have power, try restarting with a Windows CD-ROM in the CD-ROM drive or, if you've got a Macintosh, with a Mac OS disc in the CD-ROM drive. (You can start a Mac from the CDROM drive by holding down the C key while starting up.)
7.If the operating system then starts, your problem is probably with the startup hard drive or with the operating system installed on it. If you can't fix the drive, you'll have to replace it. (See also How to Fix Bad Sectors on a Hard Disk and How to Recover Lost Files.)

A computer that won't start can be both alarming and infuriating, especially if you're on a deadline or you haven't been backing up all your data (like we all tend to do). Don't panic, though-this problem often has a simple solution.

1. If your desktop computer does nothing at all when you try to start it, first check that the power cable is securely plugged in at the back of the computer as well as into a working power outlet. It's amazing how often this is the case.

2. If you're starting from a button on the keyboard, make sure the keyboard is connected to the computer.

3. If the computer is plugged into a surge protector, see if the surge protector has a reset switch that you can push. (If it doesn't have a reset switch and the problem is with the surge protector, it will need to be replaced.) Try plugging a lamp or other device into one of the surge protector's outlets to make sure it's working.

4. If you can hear the computer's fan or hard-disk drive, or if you can see indicator lights on the main unit but the monitor stays dark, make sure that the monitor is connected to a working power source, that it's turned on and that it's securely connected to the computer via the video cable.

5. If the monitor and computer have power but the computer displays a "Non-system disk or disk error" message, check to make sure you didn't leave a disk in the A: drive. If you did, eject it and restart the computer.

6. If the operating system still won't start even though the computer and monitor have power, try restarting with a Windows CD-ROM in the CD-ROM drive or, if you've got a Macintosh, with a Mac OS disc in the CD-ROM drive. (You can start a Mac from the CDROM drive by holding down the C key while starting up.)

7. If the operating system then starts, your problem is probably with the startup hard drive or with the operating system installed on it. If you can't fix the drive, you'll have to replace it.

You can check it here as well:
The minute your computer's hard disk starts to act flaky, make sure you have an up-to-date backup. Then you can do some simple diagnostics and repairs. Both Windows and Mac OS come with built-in hard-disk utility software that scans your hard disk for errors and attempts to fix them.

1. Double-click on My Computer to open the My Computer window.
2. Select the disk that you want to diagnose and repair.
3. Choose Properties from the File menu. You should see the Properties window for the drive that you selected.
4. Choose the Tools tab.
5. Click the Check Now button under Error Checking Status.
6. Depending on your version of Windows, choose either "Thorough" or "Scan for and Attempt Recovery of Bad Sectors."

7. Click on Start.

Will any USB device (keyboard, mouse, memory-stick) work when connected to your Dell monitor?
Will those USB devices (including your external disk-drive) work when _directly_ connected to your computer?

Hi,
This problem can be caused by various reasons check the power cord ,wall socket if your hear any beep sound then the rams could be defective the internal power supply may be defective the mother board can be defective.

Instructions Things You'll Need:

• A Startup Disk Or A CDROM With The Operating System On It

1. Step 1 If your desktop computer does nothing at all when you try to start it, first check that the power cable is securely plugged in at the back of the computer as well as into a working power outlet. It's amazing how often this is the case.
   
2. Step 2 If you're starting from a button on the keyboard, make sure the keyboard is connected to the computer.
   
3. Step 3 If the computer is plugged into a surge protector, see if the surge protector has a reset switch that you can push. (If it doesn't have a reset switch and the problem is with the surge protector, it will need to be replaced.) Try plugging a lamp or other device into one of the surge protector's outlets to make sure it's working.
   
4. Step 4 If you can hear the computer's fan or hard-disk drive, or if you can see indicator lights on the main unit but the monitor stays dark, make sure that the monitor is connected to a working power source, that it's turned on and that it's securely connected to the computer via the video cable.
   
5. Step 5 If the monitor and computer have power but the computer displays a "Non-system disk or disk error" message, check to make sure you didn't leave a disk in the A: drive. If you did, eject it and restart the computer.
   
6. Step 6 If the operating system still won't start even though the computer and monitor have power, try restarting with a Windows CD-ROM in the CD-ROM drive or, if you've got a Macintosh, with a Mac OS disc in the CD-ROM drive. (You can start a Mac from the CDROM drive by holding down the C key while starting up.)
   
7. Step 7 If the operating system then starts, your problem is probably with the startup hard drive or with the operating system installed on it. If you can't fix the drive, you'll have to replace it. (See also How to Fix Bad Sectors on a Hard Disk and How to Recover Lost Files.)
   

1. If your desktop computer does nothing at all when you try to start it, first check that the power cable is securely plugged in at the back of the computer as well as into a working power outlet. It's amazing how often this is the case.
   
2. Step 2 If you're starting from a button on the keyboard, make sure the keyboard is connected to the computer.
   
3. Step 3 If the computer is plugged into a surge protector, see if the surge protector has a reset switch that you can push. (If it doesn't have a reset switch and the problem is with the surge protector, it will need to be replaced.) Try plugging a lamp or other device into one of the surge protector's outlets to make sure it's working.
   
4. Step 4 If you can hear the computer's fan or hard-disk drive, or if you can see indicator lights on the main unit but the monitor stays dark, make sure that the monitor is connected to a working power source, that it's turned on and that it's securely connected to the computer via the video cable.
   
5. Step 5 If the monitor and computer have power but the computer displays a "Non-system disk or disk error" message, check to make sure you didn't leave a disk in the A: drive. If you did, eject it and restart the computer.
   
6. Step 6 If the operating system still won't start even though the computer and monitor have power, try restarting with a Windows CD-ROM in the CD-ROM drive or, if you've got a Macintosh, with a Mac OS disc in the CD-ROM drive. (You can start a Mac from the CDROM drive by holding down the C key while starting up.)
   
7. Step 7 If the operating system then starts, your problem is probably with the startup hard drive or with the operating system installed on it. If you can't fix the drive, you'll have to replace it. (See also How to Fix Bad Sectors on a Hard Disk and How to Recover Lost Files.)
   

email me at [email protected] for further instruction.
A 4 star rating for this help would be nice.

1. Check with the Power supply:

2. Check with the Hard Disk:
Most probably, your hard disk doesn't work. First check the IDE or SATA cable connecting your motherboard and the HDD. Detach first cable wires and then reconnect it. Try to put it on. IF still it doesn't try to replace a cable (IDE or SATA). If it still don't work with that. Have another computer and slave the HDD from the PC not displayed and check disk by running a DOS Command prompt by typing "cmd" then type "chkdsk" to see if the HDD works.

3. If the hard disk is ok, try to use another computer replace it with the Power Supply from the computer that doesn't display. When it is connected, switch on press "del" or "F1" or "F2" to log to CMOS. Try to look for "Health PC" section and try to see if the battery is ok. One way to determine the power is ok is looking at power input to 12 v to 12.6v. If it's lower than 12v your power supply must be replaced.

Try one of these steps.

More than 70% of all computer problems are related to cabling and connections. Ensure all cables are connected and connected firmly. IDE and floppy ribbon cables and power cables can often go loose. Ensure microprocessor, memory modules, and adapters such as video card are inserted correctly and didn't "pop-up" due to vibration.
System has no power at all. Power light does not illuminate, fan inside the power supply does not turn on, and indicator light on keyboard does not turn on. PROBABLE CAUSE DIAGNOSIS SOLUTION
Power cable is unplugged. Visually inspect power cable. Make sure power cable is securely plugged in.
Defective power cable. Visual inspection, try another cable. Replace cable.
Power supply failure. Power cable and wall socket are OK, but system is still dead. Contact technical support
Faulty wall outlet;circuit breaker or fuse blown. Plug device into socket know to work and test. Use different socket, repair outlet, reset circuit breaker or replace fuse.



System inoperative. Keyboard lights are on, power indicator lights are lit, and hard drive is spinning. PROBABLE CAUSE DIAGNOSIS SOLUTION
Expansion card is partially dislodged from expansion slot on the motherboard. Turn off computer. Take cover off system unit.
Check all expansion cards to ensure they are securely seated in slots. Using even pressure on both ends of the expansion card, press down firmly on expansion card.
Defective floppy disk drive or tape drive. Turn system off.
Disconnect the cables from one of the floppy drives. Turn on the system, check to see if the keyboard operates normally. Repeat until you have located defective unit. Contact Technical Support.
Defective expansion card. Turn computer off.
Remove an expansion card. Make sure expansion card is secure in expansion socket.



System does not boot from hard disk drive, can be booted from floppy disk drive. PROBABLE CAUSE DIAGNOSIS SOLUTION
Connector between hard drive and system board unplugged. When attempting to run the FDISK utility described in the HARD DISK section of the manual you get a message, INVALID DRIVE SPECIFICATION. Check cable running form disk to disk controller on the board. Make sure both ends are securely plugged in; check the drive type in the Standard CMOS Setup (in your motherboard manual).
Damaged Hard Disk or Disk Controller. Format hard disk; if unable to do so, the hard disk may be defective. Contact Technical Support.
Hard Disk directory or FAT is scrambled. Run the FDISK program, format the hard drive(See HARD DRIVE section of manual). Copy your backup data back onto hard drive. Backing up the hard drive is extremely important. All Hard Disks are capable of breaking down at any time.



System only boots from Floppy Disk. Hard Disk can be read and applications can be used, but booting from Hard Disk is impossible. PROBABLE CAUSE DIAGNOSIS SOLUTION
Hard Disk boot program has been destroyed. A number of causes could be behind this. Back up data and applications files.
Reformat the Hard Drive as described in the Hard Drive section of the manual. Re-install applications and data using backup disks.



Error message reading "SECTOR NOT FOUND" or other error messages indication certain data is not allowed to be retrieved. PROBABLE CAUSE DIAGNOSIS SOLUTION
A number of causes could be behind this. Use a file by file backup instead of an image backup to backup the Hard Disk. Back up any salvageable data. Then do a low level format, partition, and high level format of the hard drive( see Hard Disk section of your manual for instructions). Re-install all saved data when completed.



Disk formatted on IBM PS/2 will not operate with this system. PROBABLE CAUSE DIAGNOSIS SOLUTION
The IBM PS/2 uses a different format than other computers. IBM PS/2 disk format will not work in an AT type computer. Format disk in the AT type computer insert disk into the IBM PS/2 and copy the files you wish.



After install an expansion card (network card, tape drive card, etc.) the system no longer works properly. PROBABLE CAUSE DIAGNOSIS SOLUTION
No power to monitor. All or part of the system may be inoperable. The new card may work but a mouse or COM port may not work. Change the interrupt or RAM address on the new expansion card. See the documentation that came with the new card in order to change pin settings. many expansion devices come with proprietary software that will assist you in doing this.



Screen message says "Invalid Configuration" or "CMOS Failure." PROBABLE CAUSE DIAGNOSIS SOLUTION
Incorrect information entered into the configuration (setup) program. Check the configuration program. Replace any incorrect information. Review system's equipment. Make sure correct information is in setup.



Screen is blank. PROBABLE CAUSE DIAGNOSIS SOLUTION
No power to monitor. Power connectors may be loose or not plugged in. Check the power connectors to monitor and to system. Make sure monitor is connected to display card, change I/O address on network card if applicable.
Monitor not connected to computer. See instructions above.
Network card I/O address conflict. See instructions above.



System does not boot from hard disk drive, can be booted from floppy disk drive. PROBABLE CAUSE DIAGNOSIS SOLUTION
Connector between hard drive and system board unplugged. When attempting to run the FDISK utility described in the HARD DISK section of the manual you get a message, INVALID DRIVE SPECIFICATION. Check cable running form disk to disk controller on the board. Make sure both ends are securely plugged in; check the drive type in the Standard CMOS Setup (in your



Problem PROBABLE CAUSE DIAGNOSIS SOLUTION
Memory problem, display card jumpers not set correctly. Reboot computer. Re-install memory, make sure that all memory modules are installed in correct sockets. Check jumper and switch settings on display card. See display card section for information of settings.
Computer virus. Use anti-virus programs (McAfee/PC-cillin, E-port, etc) to detect and clean viruses.



Screen goes blank periodically. PROBABLE CAUSE DIAGNOSIS SOLUTION
Screen saver is enabled. Disable screen saver.



Keyboard failure. PROBABLE CAUSE DIAGNOSIS SOLUTION
Keyboard is disconnected. Reconnect keyboard. Check keys again, if no improvement, replace keyboard.



No color on screen. PROBABLE CAUSE DIAGNOSIS SOLUTION
Faulty Monitor. If possible, connect monitor to another system. If no color, replace monitor.
CMOS incorrectly set up. Call technical support.



Floppy drive lights stays on. PROBABLE CAUSE DIAGNOSIS SOLUTION
Floppy Drive cable not connected correctly. Reconnect floppy cable making sure PIN1 on the Floppy Drive corresponds with PIN1 on floppy cable connector.



Error reading drive A: PROBABLE CAUSE DIAGNOSIS SOLUTION
Bad floppy disk. Try new floppy disk.
Floppy disk not formatted Format floppy disk(type ENTER)



C: drive failure. PROBABLE CAUSE DIAGNOSIS SOLUTION
SETUP program does not have correct information. Boot from drive A: using DOS system disk. Input correct information to SETUP program.
Hard Drive cable not connected properly. Check Hard drive cable.



Cannot boot system after installing second hard drive. PROBABLE CAUSE DIAGNOSIS SOLUTION
Master/Slave jumpers not set correctly. Set master /Slave jumpers correctly.
Hard Drives not compatible / different manufacturers. Run SETUP program and select correct drive types. Call drive manufactures for compatibility with other drives.



Missing operating system on hard drive. PROBABLE CAUSE DIAGNOSIS SOLUTION
CMOS setup has been changed. Run setup and select correct drive type.



Certain keys do not function. PROBABLE CAUSE DIAGNOSIS SOLUTION
Keys jammed or defective. Replace keyboard.



Keyboard is locked, no keys function. PROBABLE CAUSE DIAGNOSIS SOLUTION
Keyboard is locked. Unlock keyboard



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