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How to change motherboard ?

Posted on 1998-10-19
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Last Modified: 2010-04-26
I got a P75 with a harddisk and running win95.
recently, my friend gave me a P133 m/b and I would like
to upgrade my computer to that motherboard.

What steps do I need to take in upgrading my computer
to ensure smooth transition ?
Step-by-step guide will be helpful. Thanks.
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Question by:slok
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arunm earned 150 total points
ID: 1127118
1) Take your machine apart and all the carfully remove all the cards on the existing motherboard.

2) disconnect the hard disk, floppy, seriel, and parallel connectors. Carefully unplug the power connector.

3) unscrew the old motherboard and place. By undoing the fixing screws underneath it.

4) place your new motherboard in the case, lining up the holes in the mother board with the holes in the case. Make sure the bottom of the  motherboard is not in contact with the case.

5) use the old fixing screws to secure your new motherboard to the case.

6) reinsert your PCI / ISA cards

6) reattach the hard disk / io cables being careful with the polarity of the leads. Attach the
power supply cafefully.

7) power up the machine (hopefully)


       
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by:arunm
ID: 1127119
things to look out for:-

1) If you wish to remove the ram from the old board and place it in the new board, first confirm that it is compatible.

2) Make sure all the cables that are reattached are the right way round.

3) Confirm that the PCI/ IO cards are securely inserted into the new board.

4) Rerun the bios hd autodetect  for the old hard disk on the new motherboard.

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by:arunm
ID: 1127120
A couple of really silly things occurred to me, but I going to tell you anyway:-

1) make sure the new motherboard will actually physically fit inside your case. (Sounds silly, but I know of instances where it has not). Also, check the height of your tallest PCI / ISA card, because the case may also not be wide enough.

2) Always earth yourself before touching any component esp. ram, better to be safe than sorry.



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by:slok
ID: 1127121
I change the m/b, however when I power up it doesn't show anything.
I can hear the hd running for a while.

Check the graphics card as well as its connection with the
monitor and everything seems pretty fine .
Any suggestions.
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Expert Comment

by:arunm
ID: 1127122
1) check the hard disk and floppy disk leads. Are they the correct way round? (this is the most probable cause)

2) Check that the jumper settings on the motherboard are correct. (you may have lost one?)

3) Check that the ram is seated correctly. (Remove and re-insert)

4) Remove all extra cards from you system, leaving just the graphics card. Test.

5) Try placing the graphics card in a different slot.
 
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by:arunm
ID: 1127123
slok, did you use the ram from the old board?

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by:slok
ID: 1127124
yes... I use the ram from the old board.
4 SIMM , 4Mb each,,,
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by:arunm
ID: 1127125
Check that the motherboard can take this type of ram. Some motherboards can only use parity ram.


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by:arunm
ID: 1127126
Any luck slok?


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by:slok
ID: 1127127
hi thanks a lot.
however, I still could not get it working.
The problem could either be a display card problem or RAM related.

A switch back to my old motherboard shows that the display card is
not spoilt.
Anyway, you have got me starting to find out more...

thanks...


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Expert Comment

by:arunm
ID: 1127128
Does the computer beep when you turn it on? If so, the ram and cpu ar probably OK?

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