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How do I open the case of a Compaq evo d51S to upgrade memory?

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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

  • tho7m Nov 27, 2008

    P.S. The one-sided cover sticking is due to the internal electronic solenoid "Hood Lock". If your system boots, use the BIOS to unlock the cover under Security -> Smart Cover. Only use the above if the system will not boot!




No idea.

Posted on Sep 01, 2008


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