Mounting and plastic supports

kudzu22

Member
May 23, 2006
31
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I have a very old computer (5 years) with an old Celeron. Its slow, but it works and has some software I dont want to mess with putting on a a new system.

However the case is "dead". Several years ago it was shipped and the airline did their best and actaully broke all the motherboard "legs". They were plastic and I put it back in and just was always careful with pluggin gin cables. It had 7 cards installed and in fact they became the mount.

So now finally for other reasons I've moved it ot another case. I dont even rememver how it was mounted before in the old case as all the mounts dissapeared long ago. Only one leg remains and it was not one that was attached to anything, just some kind of spacer leg that rested against the case.

When we put it in a new case it was also incredibly dirty, I've never seen such a dirty motherboard but I cleaned it all up. However it wont boot - it just beeps. As soon as we remove it and assemble it on cardboard it boots. A few times it didnt boot on cardboard too, but we did more cleaning and now it boots every time. But each time we put it back in the case it just beeps. The new case has brass legs and screws to attach. Im thinking that somehow these screws or mounts are causing a contact somewhere, even though they dont appear to be.

Do some motherboards require mounting only on plastic mounts?
 

Heidfirst

Platinum Member
May 18, 2005
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Sounds like you may have a short somewhere, do you only have standoffs where you actually have a mounting hole?
You could also try putting washers between the board & the standoffs.
 

kudzu22

Member
May 23, 2006
31
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Just stand offs. Either it was a weird coincidence of cleaning and mountings, or something really wierd. Put in a different case, same mounts and all and now its working just fine...