PC Will not boot 1

[jonohara]

I just removed the processor from a 486 66MHz PC to check the socket (socket 3), when I put the processor back in it will not boot. The PC has had problems of this nature before, but perhaps only one in 50 startups. Now it just will not boot. Any ideas?<br>
<br>
Thanks

 

[ndogg]

Give more description of what happens at boot up. Without knowing what is going on, all I can tell you is to try cleaning it a little. <p>REH<br><a href=mailto:hawkdogg@crosswinds.net>hawkdogg@crosswinds.net</a><br><a href=

http://www.crosswinds.net/~hawkdogg>Powered

by Linux</a><br>Learn Linux and Leave out the Windows

 

[jonohara]

The fact is that not very much happens at all. A few tick, tick sounds then nothing, the monitor green light comes on but there's nothing there. <br>
<br>
I am sure I put it back in the way it came out, but it is possible to put it in 3 other ways because there is no 'missing' corner pin like on a pentium (pin 1 is identifiable on the processor but not on the socket). On this point, could it be damaged by putting it in the wrong way?<br>
<br>
Thanks very much<br>
<br>
Jon

 

[Karl Blessing]

um, you did remeber to ground yourself before touching the chip right?, and you handled it very carefully? <p>Karl<br><a href=mailto:kb244@kb244.8m.com>kb244@kb244.8m.com</a><br><a href=

http://kb244.8m.com>

</a><br>Experienced in , or have messed with : VC++, Borland C++ Builder, VJ++6(starting),VB-Dos, VB1 thru VB6, Delphi 3 pro, Borland C++ 3(DOS), Borland C++ 4.5, HTML, ASP(somewhat), QBasic(least i didnt start with COBOL)

 

[peterve]

When you really ge NOTHING at all, it is possible that<br>
the processor is not installed correctly because<br>
1. it is not in the right direction (that would blow up your processor, I'm sorry)<br>
2. it is not pushed deep enough. Try to remove it and place it again, but try to place it as deep as possible.<br>
<br>
And, of course, you should always ground yourself before touching anything in a computer !!<br>
<br>
<p>Peter Van Eeckhoutte<br><a href=mailtoeter.ve@itinera.be>peter.ve@itinera.be</a><br><a href= > </a><br>

 

[Alt255]

It could be almost anything. A friend of mine was having endless problems with a system until he pulled the CPU and noticed a speck of debris on the bottom-side of the chip. He blew it off, reseated the chip and everything worked perfectly.<br>
How the speck got there is anybody's guess.<br>
<p> <br><a href=mailto: > </a><br><a href=

http://vorpalware.homestead.com/VorpalHome.html>temporary

Vorpalcom home page</a><br>Send me suggestions or comments on my current software project.

 

[bdux]

Also try pulling out the memory chip and re-inserting it and check that the bios chip is seated in the chip holder firmly(ie press lightly on the chip . using proper Grounding first . Some processor sockets don't have the corner cut away to indicate where pin1 is . Have you got the motherboard documentation as this may show in relation to the pull handle where pin 1 is . On a motherboard I was looking at the other day pin 1 was the corner nearest to the top edge of the pull handle when it is closed . I worked it out from the motherboard documentation I had as there was no corner cut away to indicate where pin 1 was.Check also the power good wire on the power socket to the motherboard is 5v I think it is the yellow wire . <br>

 

[Brianc2k]

Last but not least check to see that all this pressure inserting the CPU did not force the motherboard into a grounding situation with the case.&nbsp;&nbsp;If a dead short has been created by the motherboard and the case it will not boot either.

 

[JHebert]

Sound like to me that the when u reinserted that proc....the corner cut on the proc was not aligned with the corner cut on socket...