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Troubleshooting Tips for a New MotherboardYou are encouraged to make links to this article from your website and tell your friends
The following advice is based on many years of experience. They are provided as a
free service to our customers and visitors. However, Directron.com is not responsible for
any damage as a result of following any of these advises. You are welcome to distribute
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purposes.
| Choose Motherboard | Motherboard Installation Guide |
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 |
If a problem persists, please search for a solution or post a question in our tech support forum in our Help Desk.
|
Other "How to build & Troubleshoot" |
Assemble a System |
Hard Drive |
Monitor|
|
Video Card |
Sound Card |
Motherboard |
Network Card |
Fax/Modem |
|
Case/Power Supplies |
Small Network |
Maintain a System |
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|
Home |
Other Resources |
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