Troubleshooting Tips for a New Motherboard Afsar Mobile Repair

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                              address_Railway Rd,Jaitre Fatak, Dhampur, Uttar Pradesh 246761

                                                                             

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  eplace  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