How to change motherboard ?

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.
Who is Participating?
arunmConnect With a Mentor Commented:
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)

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.

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.

NEW Internet Security Report Now Available!

WatchGuard’s Threat Lab is a group of dedicated threat researchers committed to helping you stay ahead of the bad guys by providing in-depth analysis of the top security threats to your network.  Check out this quarters report on the threats that shook the industry in Q4 2017.

slokAuthor Commented:
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.
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.
slok, did you use the ram from the old board?

slokAuthor Commented:
yes... I use the ram from the old board.
4 SIMM , 4Mb each,,,
Check that the motherboard can take this type of ram. Some motherboards can only use parity ram.

Any luck slok?

slokAuthor Commented:
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...


Does the computer beep when you turn it on? If so, the ram and cpu ar probably OK?

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.