Question about Microsoft Windows XP Professional

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Everytime i turn on my pc,it beeps 3x(1long then 2short),then black screen so i have to reboot again

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Hi,

Here are the following steps you can try to fix this issue, ive experienced it myself using a dell PC and it works on my end.

You have what is called a No Post No Video Situation.


1: The Modem can cause a No Post No Video. Pull it and see what happens.
If it still does not boot. Strip the System down with nothing on the Board but Power Supply Processor and Fans.
This Includes All Memory, All Cards, All IDE Cables. Hook just the Power up and See if you get Memory Error Codes ( Beep Codes ). If you Do ( And you Should ) then Reseat the Memory ONLY. If you dont more than Likely it is the Power Supply or Motherboard.
If Reseating the Memory back in Memory Bank 0 causes a No Post. Pull the Memory and put the Memory in Bank 1. If it Post then Bank 0 is bad on the Motherboard. If it Dont, You Need Memory. If you have more than 1 stick then try with one or the other and make sure one of them is not bad. If it is Rambus Memory you will need to add both sticks, because Rambus is Required for Pair.
If in Bank 0 the System Posts, add the Video Card and connect the Power and Monitor. You should get Post and Video. If you do not, Video Card is bad.
From there add the Hard Drive IDE and Boot the System. If it does not boot then try the IDE Cable in the CDROM Controller and see what happens. If it Boots then the Controller on the Motherboard is bad. If it Causes a No Post No Video, Hard Drive is Bad.
From there Add One IDE Back at a time and make sure it is none of those drives or Controllers. If you find that one of the Drives is causing a No Post No Video, Try a Known Good Drive. If it Posts and Boots. The Drive is Bad. If it Dont, The Controller on the Motherboard is bad.
After that Add one card back at a time. Find out which one is causing the Issue. Sometimes Reseating everything works fine. If none of these work then You May have Either a Bad Power Supply or a Bad Processor. Also dont forget that you may have had a Surge or Storm and May have Caused a the Motherboard to get damaged.
Dell has a Good Artical on Steps to do for this at http://support.dell.com/us/en/kb/document.asp?DN=TI1014149

Posted on May 30, 2011

  • Robert Toth Jun 03, 2011

    If he is getting no POST, how come he has beeps?

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CHECK YOUR RAM.

Posted on Jul 03, 2011

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One short and two long beeps means you have vidio card troulble. It could be the driver, or you might need to reset the card, or the vidio card needs to be replaced.

Posted on May 31, 2011

  • Robert Toth May 31, 2011

    To be exact mono/CGA display circuitry issue, that would be the first place to look befor you disasemble your system needlessly, however sometimes disasemble is the only way. R-toth

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