Question about HP Compaq EVO D51S Intel Desktop PC - Intel Pentium 4 1.7GHz, 256MB DDR, 20GB HDD, CD-ROM, Windows X

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I cannot open my compaq evo d51s - HP Compaq EVO D51S Intel Desktop PC - Intel Pentium 4 1.7GHz, 256MB DDR, 20GB HDD, CD-ROM, Windows X

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  • Bob Bergeron
    Bob Bergeron Apr 18, 2009

    I have a Compaq D51s SFF.  Can't seem to find an answer anywhere.
     I've taken many covers off computer over the years, this is first I can't open.  Any suggestions?

  • Bob Bergeron
    Bob Bergeron Apr 18, 2009

    Open the case, the cover, to get to the internal components

  • Bob Bergeron
    Bob Bergeron Apr 18, 2009

    Thanks for all the great suggestions.  finally removed the cover.
    there were bent hooks on the cover.

    Thanks again

  • JDTec
    JDTec May 11, 2010

    I cannot find the manual. But on many of the low profile units, the top case slides to the front. Do you see any buttons on each side to push in while sliding the cover toward you? As you try to slide the cover toward you push in on the cd drive with your thumb.

  • JDTec
    JDTec May 11, 2010

    Is this a tower or low profile EVO desktop?

  • JDTec
    JDTec May 11, 2010

    Open the laptop to repair it? Or open the cd/dvd drive?

  • Daniel Middleton
    Daniel Middleton May 11, 2010

    can you give me more details please



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Finally, here is the manual that shows you how:

Click on this link or copy and paste the complete link into your browser.
If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Thanks, Joe

Posted on Apr 18, 2009

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Try to see if there are any hidden screws or clips

Posted on Apr 18, 2009


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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: how do I open the

Press the two side buttons, slide the case forwards, then lift it up and off. Sounds too easy, doesn't it?

The case can sometimes become stuck, requiring a bit more force. With the PC on a stable flat surface, press the side buttons and **** the top forwards vigorously. Be sure to press the rearward part of the side buttons so that the forward part starts to protrude a bit. This releases the catch behind the forward part of the button.

The case needs to slide forward about an inch to be able to lift off.

If your case is still not moving, you have probably encountered the dreaded stuck case syndrome. Looking at the case from the front, the left-hand side is stuck but the right-hand side releases. You are not alone, this has happened to more than one of us. I'm still not 100% clear on where the case jams, but there is a way to free it up.

NOTE: No tools are required to free the case cover, but you will most likely need pliers to straighten the clips afterwards!

Press both side buttons and slide the top cover forward as far as you can. Looking at the case from the front, twist the cover a little to allow the right-hand side to clear the clips. Once clear, lift up the right-hand side. It will catch on the chassis and, if fitted, the floppy-drive eject button. Gently ease the front of the cover forward so that the floppy-drive eject button clears the drive.

Next, slowly and firmly lift the right-hand side up and out past the chassis. This requires a bit of force (strength), but should not require violence (hitting).

If the case still won't release properly on the left-hand (CD/DVD) side, continue pivoting the case up from the right-hand side. At some point (cover probably around 60-75 degrees to its usual horizontal position), you will feel the metal clips resist. Release a little to see if the case is now free to move. If it is not, lift further, bending the clips as you go. Suddenly the case will be free to move forward! (You should not need to get to 90 degrees).

Once the cover slides forward, you will need to raise and lower it to work the clips out. The rear clips should release before the front ones and you can slowly pivot the cover out.

You will need to use pliers to straighten the clips before replacing the cover.

When replacing the cover, check to make sure that the cover slides easily back and forth before pushing it all the way back. The cover metal will only bend so many times before it breaks so you don't want to do this process more than once.


Posted on Nov 27, 2008

  • 45 Answers

SOURCE: compaq evo d51s beeps on boot

Try replacing the RAM (Random Access Memory) Stick


Posted on Oct 25, 2009

  • 60 Answers

SOURCE: compaq evo d51s, no sound. downloaded the audio driver

use the below link to intall the dirver its works i tried already

Posted on Nov 26, 2009

  • 13 Answers

SOURCE: Evo D51S/P2A/40/p/256c

Try this link.

Hope that helps. :)

Posted on Feb 19, 2010

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